CN103965515A - Nature fiber/starch composite material and preparation method thereof - Google Patents
Nature fiber/starch composite material and preparation method thereof Download PDFInfo
- Publication number
- CN103965515A CN103965515A CN201310028528.5A CN201310028528A CN103965515A CN 103965515 A CN103965515 A CN 103965515A CN 201310028528 A CN201310028528 A CN 201310028528A CN 103965515 A CN103965515 A CN 103965515A
- Authority
- CN
- China
- Prior art keywords
- starch
- natural fiber
- composite material
- parts
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
- B29B9/14—Making granules characterised by structure or composition fibre-reinforced
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
- B29B7/90—Fillers or reinforcements, e.g. fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7461—Combinations of dissimilar mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92923—Calibration, after-treatment or cooling zone
Abstract
The invention belongs to the technical field of polymer materials, and relates to a nature fiber/starch composite material and a preparation method thereof. The composite material is prepared from the following components by weight: 30-60 parts of starch, 10-20 parts of a plasticizer, 5-30 parts of nature fibers, 5-20 parts of a polyester, and 1-5 parts of an inorganic filler. Compared with the preparation method in the prior art, the preparation method of the present invention has characteristics of simpleness and high production efficiency. With the method, the biodegradability of the nature fibers and the starch is completely utilized, and characteristics of environmental protection, no environment pollution, abundant resource and low price are provided; and the effective coordinated and complementary effect is provided on the performance, and the mechanical property and the water resistance of the material are effectively increased.
Description
Invention field
The invention belongs to technical field of polymer materials, relate to a kind of natural fiber/starch composite material and preparation method thereof.
Technical background
The content of cellulose of natural fiber is high, intensity is high, belongs to high performance natural plant fibre, can be used as enhancement component and prepares matrix material, improves the performance of matrix material.Natural fiber more and more attracts much attention for the potential advantages of matrix material in recent years, it is cheap, density is little, there is higher Young's modulus, close with inorganic fibre, but its biological degradability and recyclability are the most outstanding advantages, be that other any strongthener is incomparable; Simultaneously, the plastics that vegetable fibre and general-purpose plastics blend make are not exclusively biodegradable, under microbial process, synthetic polymer only can be broken down into fragment at random, after this materials'use, still can bring negative impact to environment, thereby natural fiber obtains in biodegradable composite material paying attention to and developing rapidly.
Starch and cellulose chemistry structural similitude, have good consistency, and by natural fiber and starch blending, starch mechanical property can obviously improve.And vegetable fibre is hydrophobic, starch is hydrophilic, adds the water tolerance of starch after natural fiber obviously to improve, and thermostability is also obviously improved.(the plastic engineerings such as Ji tinkling of pieces of jade labor, 2005) prepared thermoplastic starch/fibre composite taking glycerine as fluidizer, find that fiber has obviously improved mechanical property and the water tolerance of system, fiber can be dispersed in thermoplastic starch preferably, and fiber is combined with starch well, but this method operation is more complicated, and technological process is had relatively high expectations, and is unfavorable for industrialization.Chinese patent CN101942118 discloses a kind of plant fiber starch Biodegradable Materials and preparation method thereof, adopt poly(lactic acid) as thermo-stabilizer, by thermoplastic starch and needle-leaved wood fibre blending extrusion, its performance is increased, but this invention is had relatively high expectations to fiber, only adopt 50-60 object needle-leaved wood fibre, to the another fixed restriction of the application of natural fiber.Tian Yajuan etc. (plastics industry, 2009) carry out blend by thermoplastic starch and jute and prepare matrix material, and result shows that tensile property and the water tolerance of jute to thermoplastic starch has some improvement, but its technique is not suitable for industrial production.The present invention strengthens thermoplastic starch material by natural fiber, can effectively improve the performance of material, and method is simple, by adding a small amount of polyester, also can improve the toughness of material simultaneously, expands the use value of material.
Summary of the invention
One object of the present invention is that the defect for overcoming prior art provides a kind of natural fiber/starch composite material and preparation method thereof.This matrix material, in increasing substantially the consistency of natural fiber and starch, has also strengthened its mechanical property and water tolerance, and has kept degradability, does not pollute the environment.
For achieving the above object, the present invention is by the following technical solutions:
A kind of natural fiber/starch composite material, made by the component that comprises following weight part:
Starch 30-60 part,
Softening agent 10-20 part,
Natural fiber 5-30 part,
Polyester 5-20 part,
Mineral filler 1-5 part.
Described starch is selected from one or more in W-Gum, wheat starch, sweet potato starch or yam starch.
Described softening agent is selected from one or more in ethylene glycol, tirethylene glycol, propylene glycol, glycerol, sorbyl alcohol, methane amide, ethanamide, urea.
Described natural fiber is selected from one or more in ramee, hemp fibre, jute fibre, flax fiber, cotton fibre, sisal fibers or bamboo fibers.
Described natural fiber is the modified natural fiber of alkaline purification.
Described polyester is selected from degradable polyester, as one or more in polycaprolactone, poly butylene succinate, polybutylene terephthalate or poly(lactic acid).
Described mineral filler is selected from talcum powder, polynite or kaolin.
A preparation method for above-mentioned natural fiber/starch composite material, comprises the following steps:
(1) take the each component raw material of following weight part by said ratio: starch 30-60 part, softening agent 10-20 part, natural fiber 5-30 part, polyester 5-20 part, mineral filler 1-5 part;
(2) by starch, natural fiber, polyester and mineral filler vacuum-drying, remove moisture;
(3), by starch, plasticising blend 5～10min in mixer in proportion, compound is extruded through twin screw extruder after placing, and makes thermoplastic starch powder particles;
(4) thermoplastic starch powder particles step (3) being obtained is placed in mixer with polyester, natural fiber, mineral filler and mixes 5～10min, then extrudes through twin screw extruder;
(5) mixture is extruded to tie rod, water-cooled, pelletizing, obtaining compound particles, to be placed in baking oven dry, obtains described natural fiber reinforced composite.
Be 10-24 hour the time of drying in described step (2), drying temperature 60-90 DEG C
Alkaline purification natural fiber in described step (2) is to select 50-100 object natural fiber, is immersed in concentration expressed in percentage by weight and is in 15%-25% alkaline solution after 24-72h, is washed till neutrality with distilled water, dries; The preferred sodium hydroxide of alkali.
Extrusion temperature in described step (3) is 60～120 DEG C.
Extrusion temperature in described step (4) is 120-170 DEG C.
In described step (5), be 4-6 hour time of drying, the drying temperature 50-80 DEG C of baking oven.
In addition, also can be by the modification agent such as maleic anhydride are directly carried out to modification by methods such as melt blendings to matrix material, thus improve the consistency of vegetable fibre and matrix material, in cost and technique, comparatively simplify.
The present invention has following beneficial effect:
Compared with prior art, the inventive method is simple, production efficiency is high.Make full use of the biodegradable of natural fiber and starch by the method, environmentally friendly, do not pollute the environment, aboundresources, cheap; In performance, play effective harmonizing effect, effectively improve mechanical property and the water tolerance of material simultaneously.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be appreciated that, these embodiment are only for the present invention is described, and are not intended to limit the scope of the invention.Technician makes according to the present invention in actual applications improvement and adjustment, still belong to protection scope of the present invention.
Embodiment 1
In the present embodiment, each component concentration is:
60 parts of W-Gums,
20 parts of glycerol,
10 parts of sisal fiberss,
8 parts of polycaprolactones,
1 part of polynite;
The preparation method of the blend of the present embodiment is as follows:
(1) take each parts by weight of component according to proportioning above;
(2) and by W-Gum, sisal fibers, polycaprolactone and polynite carry out drying and processing, drying temperature is 80 DEG C, 10 hours time of drying;
(3), by dried W-Gum and glycerol blend 5min in mixer in proportion, compound is extruded through twin screw extruder after placing, and makes thermoplastic starch powder particles, 60 DEG C of extrusion temperatures.
(4) thermoplastic starch powder particles step (3) being obtained is placed in mixer mixing 10min with polycaprolactone, sisal fibers, polynite, then extrudes 160 DEG C of extrusion temperatures through twin screw extruder.
(5) mixture is extruded to tie rod, water-cooled, pelletizing, obtained compound particles and be placed in baking oven dry 4 hours, 80 DEG C of oven temperatures, obtain described natural fiber and strengthen blend.
The test result of this enforcement product is in table 1.
Embodiment 2
In the present embodiment, each component concentration is:
40 parts of wheat starches,
15 parts, urea,
30 parts of ramees,
10 parts of poly butylene succinates,
5 parts of talcum powder;
The preparation method of the blend of the present embodiment is as follows:
(1) take each parts by weight of component according to proportioning above;
(2) and by W-Gum, sisal fibers, polycaprolactone and polynite carry out drying and processing, drying temperature is 90 DEG C, 24 hours time of drying;
(3), by dried wheat starch and urea blend 8min in mixer in proportion, compound is extruded through twin screw extruder after placing, and makes thermoplastic starch powder particles, 80 DEG C of extrusion temperatures.
(4) thermoplastic starch powder particles step (3) being obtained is placed in mixer mixing 8min with poly butylene succinate, ramee, talcum powder, then extrudes 150 DEG C of extrusion temperatures through twin screw extruder.
(5) mixture is extruded to tie rod, water-cooled, pelletizing, obtained compound particles and be placed in baking oven dry 5 hours, 70 DEG C of oven temperatures, obtain described natural fiber and strengthen blend.
The test result of the present embodiment product is in table 1.
Embodiment 3
In the present embodiment, each component concentration is:
35 parts of yam starchs,
10 parts of methane amides,
25 parts of jute fibres,
20 parts of polybutylene terephthalates,
3 parts of kaolin;
The preparation method of the blend of the present embodiment is as follows:
(1) take each parts by weight of component according to proportioning above;
(2) and by W-Gum, sisal fibers, polycaprolactone and polynite carry out drying and processing, drying temperature is 60 DEG C, 15 hours time of drying;
(3), by dried W-Gum and glycerol blend 6min in mixer in proportion, compound is extruded through twin screw extruder after placing, and makes thermoplastic starch powder particles, 100 DEG C of extrusion temperatures;
(4) thermoplastic starch powder particles step (3) being obtained is placed in mixer mixing 8min with polybutylene terephthalate, jute fibre, kaolin, then extrudes 120 DEG C of extrusion temperatures through twin screw extruder.
(5) mixture is extruded to tie rod, water-cooled, pelletizing, obtained compound particles and be placed in baking oven dry 5 hours, 50 DEG C of oven temperatures, obtain described natural fiber and strengthen blend.
The test result of the present embodiment product is in table 1.
Embodiment 4
In the present embodiment, each component concentration is:
45 parts of W-Gums,
15 parts, urea,
15 parts of hemp fibres,
10 parts of polycaprolactones,
10 parts of poly(lactic acid),
4 parts of polynites;
The preparation method of the blend of the present embodiment is as follows:
(1) take each parts by weight of component according to proportioning above;
(2) and by W-Gum, sisal fibers, polycaprolactone and polynite carry out drying and processing, drying temperature is 65 DEG C, 20 hours time of drying;
(3), by dried W-Gum and glycerol blend 10min in mixer in proportion, compound is extruded through twin screw extruder after placing, and makes thermoplastic starch powder particles, 120 DEG C of extrusion temperatures.
(4) thermoplastic starch powder particles step (3) being obtained is placed in mixer mixing 8min with polybutylene terephthalate, jute fibre, kaolin, then extrudes 170 DEG C of extrusion temperatures through twin screw extruder.
(5) mixture is extruded to tie rod, water-cooled, pelletizing, obtained compound particles and be placed in baking oven dry 6 hours, 60 DEG C of oven temperatures, obtain described natural fiber and strengthen blend.
The test result of the present embodiment product is in table 1.
Embodiment 5
In the present embodiment, each component concentration is:
30 parts of sweet potato starchs,
6 parts of ethylene glycol
6 parts of tirethylene glycols,
5 parts of jute fibres,
15 parts of poly(lactic acid),
4 parts of talcum powder;
The preparation method of the blend of the present embodiment is as follows:
(1) take each parts by weight of component according to proportioning above;
(2) and by sweet potato starch, jute fibre, poly(lactic acid) and talcum powder carry out drying and processing, drying temperature is 70 DEG C, 18 hours time of drying;
(3), by dried sweet potato starch and ethylene glycol, tirethylene glycol blend 7min in mixer in proportion, compound is extruded through twin screw extruder after placing, and makes thermoplastic starch powder particles, 90 DEG C of extrusion temperatures.
(4) thermoplastic starch powder particles step (3) being obtained is placed in mixer mixing 8min with poly(lactic acid), jute fibre, talcum powder, then extrudes 140 DEG C of extrusion temperatures through twin screw extruder.
(5) mixture is extruded to tie rod, water-cooled, pelletizing, obtained compound particles and be placed in baking oven dry 4 hours, 70 DEG C of oven temperatures, obtain described natural fiber and strengthen blend.
Embodiment 6
In the present embodiment, each component concentration is:
50 parts of wheat starches,
9 parts of propylene glycol
9 parts of sorbyl alcohols,
20 parts of flax fibers,
15 parts of polybutylene terephthalates,
4 parts of kaolin;
The preparation method of the blend of the present embodiment is as follows:
(1) take each parts by weight of component according to proportioning above;
(2) and by wheat starch, flax fiber, polybutylene terephthalate and kaolin carry out drying and processing, drying temperature is 75 DEG C, 15 hours time of drying;
(3), by dried sweet potato starch and propylene glycol, sorbyl alcohol blend 7min in mixer in proportion, compound is extruded through twin screw extruder after placing, and makes thermoplastic starch powder particles, 90 DEG C of extrusion temperatures.
(4) thermoplastic starch powder particles step (3) being obtained is placed in mixer mixing 8min with polybutylene terephthalate, flax fiber, kaolin, then extrudes 140 DEG C of extrusion temperatures through twin screw extruder.
(5) mixture is extruded to tie rod, water-cooled, pelletizing, obtained compound particles and be placed in baking oven dry 4 hours, 70 DEG C of oven temperatures, obtain described natural fiber and strengthen blend.
Comparative example 1
In the present embodiment, each component concentration is:
60 parts of W-Gums,
20 parts of glycerol,
8 parts of polycaprolactones,
1 part of polynite;
The preparation method of the blend of the present embodiment is as follows:
(1) take each parts by weight of component according to proportioning above;
(2) and by W-Gum, polycaprolactone and polynite carry out drying and processing, drying temperature is 80 DEG C, 10 hours time of drying;
(3), by dried W-Gum and glycerol blend 5min in mixer in proportion, compound is extruded through twin screw extruder after placing, and makes thermoplastic starch powder particles, 60 DEG C of extrusion temperatures.
(4) thermoplastic starch powder particles step (3) being obtained is placed in mixer mixing 10min with polycaprolactone, polynite, then extrudes 160 DEG C of extrusion temperatures through twin screw extruder.
(5) mixture is extruded to tie rod, water-cooled, pelletizing, obtained compound particles and be placed in baking oven dry 4 hours, 80 DEG C of oven temperatures, obtain described blend.
The test result of the present embodiment product is in table 1.
Comparative example 2
In the present embodiment, each component concentration is:
30 parts of W-Gums,
10 parts of glycerol,
40 parts of sisal fiberss,
8 parts of polycaprolactones,
1 part of polynite;
The preparation method of the blend of the present embodiment is as follows:
(1) take each parts by weight of component according to proportioning above;
(2) and by W-Gum, sisal fibers, polycaprolactone and polynite carry out drying and processing, drying temperature is 80 DEG C, 10 hours time of drying;
(3), by dried W-Gum and glycerol blend 5min in mixer in proportion, compound is extruded through twin screw extruder after placing, and makes thermoplastic starch powder particles, 60 DEG C of extrusion temperatures.
(4) thermoplastic starch powder particles step (3) being obtained is placed in mixer mixing 10min with polycaprolactone, sisal fibers, polynite, then extrudes 160 DEG C of extrusion temperatures through twin screw extruder.
(5) mixture is extruded to tie rod, water-cooled, pelletizing, obtained compound particles and be placed in baking oven dry 4 hours, 80 DEG C of oven temperatures, obtain described natural fiber and strengthen blend.
The test result of the present embodiment product is in table 1.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | Comparative example 2 | |
| Tensile strength (MPa) | 10.3 | 14.2 | 15.6 | 12.8 | 6.3 | 14.6 |
| Water-intake rate (%) | 30.8 | 22.7 | 25.4 | 27.8 | 36.9 | 20.3 |
Test result by above embodiment and comparative example is known, and it is low that the product that the present invention obtains not only has biodegradability, asepsis environment-protecting, cost, and the water tolerance of product and mechanical property all good.Compared with existing thermoplastic starch powder composite material, its tensile strength has improved more than 60%, water absorption decreased 15-40%.Can effectively improve the performance of thermoplastic starch powder composite material by adding fiber, but the addition of fiber too high after, the consistency of matrix material reduces, thereby has affected the performance of matrix material.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various amendments to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from improvement and the amendment that category of the present invention makes all should be within protection scope of the present invention.
Claims (10)
1. natural fiber/starch composite material, is characterized in that: be made up of the component that comprises following weight part:
Starch 30-60 part,
Softening agent 10-20 part,
Natural fiber 5-30 part,
Polyester 5-20 part,
Mineral filler 1-5 part.
2. natural fiber/starch composite material according to claim 1, is characterized in that: described starch is selected from one or more in W-Gum, wheat starch, sweet potato starch or yam starch.
3. natural fiber/starch composite material according to claim 1, is characterized in that: described softening agent is selected from one or more in ethylene glycol, tirethylene glycol, propylene glycol, glycerol, sorbyl alcohol, methane amide, ethanamide or urea.
4. natural fiber/starch composite material according to claim 1, is characterized in that: described natural fiber is selected from one or more in ramee, hemp fibre, jute fibre, flax fiber, cotton fibre, sisal fibers or bamboo fibers.
5. natural fiber/starch composite material according to claim 1, is characterized in that: described natural fiber is the modified natural fiber of gas ions processing or alkaline purification.
6. natural fiber/starch composite material according to claim 1, is characterized in that: described polyester is selected from degradable polyester, as one or more in polycaprolactone, poly butylene succinate, polybutylene terephthalate or poly(lactic acid).
7. natural fiber/starch composite material according to claim 1, is characterized in that: described mineral filler is selected from talcum powder, polynite or kaolin.
8. a preparation method for arbitrary described natural fiber/starch composite material in the claims 1-7, is characterized in that: comprise the following steps:
(1) take the each component raw material of following weight part by proportioning claimed in claim 1: starch 30-60 part, softening agent 10-20 part, natural fiber 5-30 part, polyester 5-20 part, mineral filler 1-5 part;
(2) by starch, natural fiber, polyester and mineral filler vacuum-drying, remove moisture;
(3), by starch, plasticising blend 5～10min in mixer in proportion, compound is extruded through twin screw extruder after placing, and makes thermoplastic starch powder particles;
(4) thermoplastic starch powder particles step (3) being obtained is placed in mixer with polyester, natural fiber, mineral filler and mixes 5～10min, then extrudes through twin screw extruder;
(5) mixture is extruded to tie rod, water-cooled, pelletizing, obtaining compound particles, to be placed in baking oven dry, obtains described natural fiber reinforced composite.
9. preparation method according to claim 8, is characterized in that; Be 10-24 hour the time of drying in described step (2), drying temperature 60-90 DEG C;
Alkaline purification natural fiber in described step (2) is to select 50-100 object natural fiber, is immersed in concentration expressed in percentage by weight and is in 15%-25% alkaline solution after 24-72h, is washed till neutrality with distilled water, dries; The wherein preferred sodium hydroxide of alkali;
Or extrusion temperature in described step (3) is 60～120 DEG C.
10. preparation method according to claim 8, is characterized in that; Extrusion temperature in described step (4) is 120-170 DEG C;
Or described step (5) in time of drying be 4-6 hour, the drying temperature 50-80 DEG C of baking oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310028528.5A CN103965515A (en) | 2013-01-25 | 2013-01-25 | Nature fiber/starch composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310028528.5A CN103965515A (en) | 2013-01-25 | 2013-01-25 | Nature fiber/starch composite material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103965515A true CN103965515A (en) | 2014-08-06 |
Family
ID=51235547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310028528.5A Pending CN103965515A (en) | 2013-01-25 | 2013-01-25 | Nature fiber/starch composite material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103965515A (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669396A (en) * | 2015-01-21 | 2015-06-03 | 袁彻革 | Novel raw material prepared by waste plant material and method |
| CN104693707A (en) * | 2015-03-11 | 2015-06-10 | 宁波家联塑料科技有限公司 | Polylactic acid/starch/fibrilia bio-based degradable composite material and preparation method thereof |
| CN105504363A (en) * | 2016-01-07 | 2016-04-20 | 东莞市酬勤包装制品有限公司 | Starch and plant fiber composite biodegradable polyester film-blowing grade resin and preparation method |
| CN106142428A (en) * | 2015-04-21 | 2016-11-23 | 浙江新木材料科技有限公司 | A kind of cotton fiber composite extruding technique |
| CN106751578A (en) * | 2016-12-26 | 2017-05-31 | 上海金山锦湖日丽塑料有限公司 | Biological fiber filling PBT composition and preparation method thereof |
| CN107501613A (en) * | 2017-08-24 | 2017-12-22 | 广西师范学院 | Sisal hemp environmental protection toughness rope and preparation method thereof |
| CN107522905A (en) * | 2017-08-17 | 2017-12-29 | 周光前 | A kind of degradable medical spatula and preparation method |
| CN107540880A (en) * | 2017-09-18 | 2018-01-05 | 广西师范学院 | Sisal fiber strengthens the preparation method of starch composite material |
| CN107880322A (en) * | 2017-12-14 | 2018-04-06 | 成都新柯力化工科技有限公司 | A kind of low energy consumption prepares high intensity, the method for biodegradable plastic mulch film |
| CN108727849A (en) * | 2018-06-19 | 2018-11-02 | 佛山皖阳生物科技有限公司 | A kind of water-resistant type plant fiber tableware |
| CN109705549A (en) * | 2018-12-27 | 2019-05-03 | 金华市秸和环保技术咨询有限公司 | A kind of bamboo fibre environment-friendly materials and preparation method thereof |
| CN109749469A (en) * | 2017-11-02 | 2019-05-14 | 中国科学院金属研究所 | A kind of shinyleaf yellowhorn fruit shell/starch-based degradable wood plastic composite and its profile |
| CN109897230A (en) * | 2019-03-01 | 2019-06-18 | 山东天一生物降解塑业有限公司 | A kind of environment biological degradation plastics masterbatch and preparation method thereof |
| CN110016217A (en) * | 2019-04-30 | 2019-07-16 | 封金财 | A kind of preparation method of degradable agricultural composite plastic mulch |
| CN111393866A (en) * | 2020-04-08 | 2020-07-10 | 保定茂华塑料制品有限公司 | Biodegradable mulching film and preparation method thereof |
| CN111647204A (en) * | 2020-05-14 | 2020-09-11 | 江门市玛斯特包装有限公司 | Degradable bag containing aluminum foil and preparation method thereof |
| CN111908830A (en) * | 2020-08-28 | 2020-11-10 | 南通市展成商品混凝土有限公司 | Concrete rust inhibitor and ready-mixed concrete using same |
| CN112142407A (en) * | 2020-09-27 | 2020-12-29 | 嘉华特种水泥股份有限公司 | Fiber toughness well cementing material |
| CN112321902A (en) * | 2020-09-14 | 2021-02-05 | 惠州市环美盛新材料有限公司 | Biodegradable functional material and preparation method thereof |
| CN117089121A (en) * | 2023-08-17 | 2023-11-21 | 佛山市南海区百兴玩具有限公司 | Environment-friendly nontoxic starch plastic for toy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070021534A1 (en) * | 2005-07-19 | 2007-01-25 | United States (as represented by the Secretary of Agriculture) | Fiber-reinforced starch-based compositions and methods of manufacture and use |
| CN101942118A (en) * | 2010-10-25 | 2011-01-12 | 曾广胜 | Plant fiber starch fully-biodegradable material and preparation method thereof |
| CN102079820A (en) * | 2010-10-22 | 2011-06-01 | 曾广胜 | Completely biodegradable food packing material and preparation method thereof |
| CN102086274A (en) * | 2011-01-20 | 2011-06-08 | 殷正福 | Biobased completely degradable plastic for disposable hotel guest room consumable articles as well as production method and use method of plastic |
-
2013
- 2013-01-25 CN CN201310028528.5A patent/CN103965515A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070021534A1 (en) * | 2005-07-19 | 2007-01-25 | United States (as represented by the Secretary of Agriculture) | Fiber-reinforced starch-based compositions and methods of manufacture and use |
| CN102079820A (en) * | 2010-10-22 | 2011-06-01 | 曾广胜 | Completely biodegradable food packing material and preparation method thereof |
| CN101942118A (en) * | 2010-10-25 | 2011-01-12 | 曾广胜 | Plant fiber starch fully-biodegradable material and preparation method thereof |
| CN102086274A (en) * | 2011-01-20 | 2011-06-08 | 殷正福 | Biobased completely degradable plastic for disposable hotel guest room consumable articles as well as production method and use method of plastic |
Non-Patent Citations (1)
| Title |
|---|
| 王清文等: "《木塑复合材料与制品》", 31 January 2007, 化学工业出版社 * |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669396A (en) * | 2015-01-21 | 2015-06-03 | 袁彻革 | Novel raw material prepared by waste plant material and method |
| CN104693707A (en) * | 2015-03-11 | 2015-06-10 | 宁波家联塑料科技有限公司 | Polylactic acid/starch/fibrilia bio-based degradable composite material and preparation method thereof |
| CN104693707B (en) * | 2015-03-11 | 2016-08-24 | 宁波家联塑料科技有限公司 | A kind of polylactic acid/starch/flaxen fiber Biobased degradable composite material and preparation method thereof |
| CN106142428B (en) * | 2015-04-21 | 2019-07-23 | 浙江新木材料科技有限公司 | A kind of cotton fiber composite material extruding technique |
| CN106142428A (en) * | 2015-04-21 | 2016-11-23 | 浙江新木材料科技有限公司 | A kind of cotton fiber composite extruding technique |
| CN105504363A (en) * | 2016-01-07 | 2016-04-20 | 东莞市酬勤包装制品有限公司 | Starch and plant fiber composite biodegradable polyester film-blowing grade resin and preparation method |
| CN106751578A (en) * | 2016-12-26 | 2017-05-31 | 上海金山锦湖日丽塑料有限公司 | Biological fiber filling PBT composition and preparation method thereof |
| CN106751578B (en) * | 2016-12-26 | 2019-09-17 | 上海金山锦湖日丽塑料有限公司 | Biological fiber fills PBT composition and preparation method thereof |
| CN107522905A (en) * | 2017-08-17 | 2017-12-29 | 周光前 | A kind of degradable medical spatula and preparation method |
| CN107501613A (en) * | 2017-08-24 | 2017-12-22 | 广西师范学院 | Sisal hemp environmental protection toughness rope and preparation method thereof |
| CN107540880A (en) * | 2017-09-18 | 2018-01-05 | 广西师范学院 | Sisal fiber strengthens the preparation method of starch composite material |
| CN109749469A (en) * | 2017-11-02 | 2019-05-14 | 中国科学院金属研究所 | A kind of shinyleaf yellowhorn fruit shell/starch-based degradable wood plastic composite and its profile |
| CN107880322A (en) * | 2017-12-14 | 2018-04-06 | 成都新柯力化工科技有限公司 | A kind of low energy consumption prepares high intensity, the method for biodegradable plastic mulch film |
| CN108727849A (en) * | 2018-06-19 | 2018-11-02 | 佛山皖阳生物科技有限公司 | A kind of water-resistant type plant fiber tableware |
| CN109705549A (en) * | 2018-12-27 | 2019-05-03 | 金华市秸和环保技术咨询有限公司 | A kind of bamboo fibre environment-friendly materials and preparation method thereof |
| CN109897230A (en) * | 2019-03-01 | 2019-06-18 | 山东天一生物降解塑业有限公司 | A kind of environment biological degradation plastics masterbatch and preparation method thereof |
| CN110016217A (en) * | 2019-04-30 | 2019-07-16 | 封金财 | A kind of preparation method of degradable agricultural composite plastic mulch |
| CN111393866A (en) * | 2020-04-08 | 2020-07-10 | 保定茂华塑料制品有限公司 | Biodegradable mulching film and preparation method thereof |
| CN111647204A (en) * | 2020-05-14 | 2020-09-11 | 江门市玛斯特包装有限公司 | Degradable bag containing aluminum foil and preparation method thereof |
| CN111908830A (en) * | 2020-08-28 | 2020-11-10 | 南通市展成商品混凝土有限公司 | Concrete rust inhibitor and ready-mixed concrete using same |
| CN112321902A (en) * | 2020-09-14 | 2021-02-05 | 惠州市环美盛新材料有限公司 | Biodegradable functional material and preparation method thereof |
| CN112142407A (en) * | 2020-09-27 | 2020-12-29 | 嘉华特种水泥股份有限公司 | Fiber toughness well cementing material |
| CN117089121A (en) * | 2023-08-17 | 2023-11-21 | 佛山市南海区百兴玩具有限公司 | Environment-friendly nontoxic starch plastic for toy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103965515A (en) | Nature fiber/starch composite material and preparation method thereof | |
| Nourbakhsh et al. | Wood plastic composites from agro-waste materials: Analysis of mechanical properties | |
| CN104119647B (en) | A kind of high-content of starch complete biodegradable composition and preparation method thereof | |
| CN102504503B (en) | Full-biodegradation ceratin fiber reinforced and fireproof modified polylactic acid material and preparation method thereof | |
| JP6660318B2 (en) | Thermoplastic starch composition obtained from agricultural waste | |
| CN104017340A (en) | Bagasse/cassava starch polylactic acid biodegradable material, and preparation method and application thereof | |
| Haque et al. | Preparation and characterization of polypropylene composites reinforced with chemically treated coir | |
| CN104130515A (en) | Hickory nut shell ecologic wood composite material and preparation method thereof | |
| CN101851353A (en) | Vegetable fiber reinforced flame-retardant thermoplastic starch-based composite material and preparation method thereof | |
| CN105315689A (en) | Preparation and use methods for straw-based materials | |
| Mamun et al. | PLA and PP composites with enzyme modified oil palm fibre: A comparative study | |
| CN103242631A (en) | Biodegradable composite material and preparation method thereof | |
| CN102219936A (en) | Production method of full-biodegradable mulching film for tobacco cultivation | |
| CN108530854B (en) | Preparation method of straw powder-PLA wood-plastic composite material | |
| CN104177662A (en) | Biodegradable material as well as preparation method and application of biodegradable material | |
| JP2010138238A (en) | Thermoplastic resin composition and manufacturing method of molded article thereof | |
| CN105348842B (en) | A kind of stalk fibre based biomass composite material and preparation method thereof | |
| CN102924954A (en) | Method for preparing wood-plastic composite materials by using cotton straws | |
| CN103709773A (en) | Alkaline thiourea disentangled straw/resin composite board making method | |
| CN107022177A (en) | A kind of polylactic acid/starch/powder of straw Biobased degradable composite material and preparation method thereof | |
| KR20130075537A (en) | Recyclable material for engineering, building and farming and method for producing the same | |
| CN104231512A (en) | Preparation method of degradable wood-plastic composite material and degradable wood-plastic composite material | |
| CN107383815A (en) | A kind of bamboo fibre lactic acid composite material and preparation method | |
| CN103788549B (en) | Composite plastic of a kind of acid and alkali-resistance moisture-proof and preparation method thereof | |
| CN104974487A (en) | Preparation method of high-toughness polylactic acid-based composite material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140806 |
|
| RJ01 | Rejection of invention patent application after publication |