CN103672197A - Ultra-high molecular weight polyethylene mining delivery pipe through multi-layer coextrusion method and manufacturing method thereof - Google Patents
Ultra-high molecular weight polyethylene mining delivery pipe through multi-layer coextrusion method and manufacturing method thereof Download PDFInfo
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- CN103672197A CN103672197A CN201310719076.5A CN201310719076A CN103672197A CN 103672197 A CN103672197 A CN 103672197A CN 201310719076 A CN201310719076 A CN 201310719076A CN 103672197 A CN103672197 A CN 103672197A
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- molecular weight
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- weight polyethylene
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
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- 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
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/06—Hoses, i.e. flexible pipes made of rubber or flexible plastics with homogeneous wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
Abstract
The invention discloses an ultra-high molecular weight polyethylene mining delivery pipe through a multi-layer coextrusion method and a manufacturing method thereof. The delivery pipe comprises an ultra-high molecular weight polyethylene inner layer, a modified polymer layer is arranged outside the ultra-high molecular weight polyethylene inner layer, and a functional polymer outer layer is arranged outside the modified polymer layer; the modified polymer layer is made of polymers subjected to modification of added filler, and the mass ratio of the filler to the polymers is 5:95 to 40:60. The mining delivery pipe manufactured through the multi-layer coextrusion method is adopted, the inner layer and the outer layer are made of ultra-high molecular weight polyethylene, and the delivery pipe has ultrastrong abrasive resistance, self-lubrication performance, high strength, stable chemical properties, high ageing resistance and other properties; filler modified polymer materials are adopted in the modified polymer layer; the polymer materials are adopted in the outer layer, so the delivery pipe has excellent antistatic performance, high strength, shock resistance and the like. Therefore, the experimental scheme is obtained through a great amount of experimental demonstration by the inventor. Comprehensive performance of products is controlled through the content of the ultra-high molecular weight polyethylene, the content of the filler and the content of the polymers, and the mining delivery pipe with excellent performance is obtained through optimization of process conditions.
Description
Technical field
The present invention relates to polymer science field, multi-layer co-extruded mining delivery pipe of especially a kind of ultra-high molecular weight polyethylene and preparation method thereof.
Background technique
Mining delivery pipe refers to the conveyance conduit such as water supply and sewage, ventilation, slip casting, gas-removing in mine.In the sixties, once adopted hard PVC as the pipeline of carrying abroad, but due to poor performance at low temperatures, easily broken, wear resistance is not good.After the seventies, progressively by HDPE pipe, replaced, due to HDPE pipe have corrosion-resistant, low-temperature flexibility good, serviceability temperature reaches below-40 ℃, creep-resistant property is good, long service life, thus be widely used.
Multi-layer co-extruded is on many extruders, to extrude respectively different melting charge stream, at a compound die head internal exchange, amounts to and extrudes the course of working that obtains multilayer composite product.The material flow with different performance is combined with each other in extrusion process, makes goods have the good characteristic of several different materials concurrently.Goods can carry out complementation in nature, thereby obtain the material with special performance and outward appearance, as anti-oxygen and damp proof obstructing capacity, coloring, heat insulating ability, thermoforming and heat bonding ability, and the mechanical property such as intensity, rigidity, hardness.These multilayer materials with combination property have using value extremely widely in a lot of fields.Therefore, coextrusion technology is widely used in the production of laminated film, sheet material, tubing and electric wire.
Ultra-high molecular weight polyethylene is a kind of macromolecular material, and it has, and high wear resistance, self lubricity, chemical property are more stable, the feature such as strength ratio is higher, low temperature resistant, anti-aging.Ultra-high molecular weight polyethylene has high impact resistance, adopts the mining delivery pipe of multi-layer co-extruded preparation, can effectively prevent internal and external layer creep, has increased its ability to shock resistance, pressure, bending, has increased its ability to bear.Adopt superhigh molecular weight polyethylene material to prepare mining delivery pipe and be not afraid of and collide with, can not break, be specially adapted to the severe mine conveying equipment of some environment.
China Patent Publication No. CN200972014, discloses on November 7th, 2007 " mining conveying tubing ".The method relates to body, is covered with reflective pad pasting on body, and reflective pad pasting is axial arranged along body, along body, circumferentially has one or one or more.This tubing is for water supply and sewage, ventilation, slip casting, the drawing-off gas of mine.Easily distinguish staggered pipeline, mine is produced more orderly, raise the management level.
China Patent Publication No. CN203010031U, discloses on June 19th, 2013 " polyurethane foam corrosion-resistant thermal insulation fluid-transporting tubing ".The internal surface of this ammonia ester foaming corrosion-resistant thermal insulation fluid-transporting tubing body arranges permeable formation, and outer surface arranges anticorrosive coat, and anticorrosive coat outside arranges thermal insulation layer, and thermal insulation layer outside arranges protective coating.This design anticorrosive coat, RPUF thermal insulation layer and high density polyethylene (HDPE) protective coating and body are combined closely, and good integrity makes pipeline have the performances such as good resistance to compression, anticorrosion, waterproof and insulation, has greatly extended the working life of pipeline.
China Patent Publication No. CN102287588A, discloses on December 21st, 2012 " the flexible drag reduction two-layer compound of environment protection type ore pulp delivery duct and preparation method thereof ".The flexible drag reduction two-layer compound of this environment protection type ore pulp delivery duct, is provided with bonding layer at inner-walls of duct, and bonding layer is outward fat deposit, and fat deposit is outward periostracum, and pipeline is metal tube, and pipe thickness is 1～50mm.The excellent combination properties such as this invention product is wear-resisting, corrosion-resistant, shock-resistant.It is the flexible drag reduction two-layer compound of a kind of novel environment protection type ore pulp delivery duct.
Mining delivery pipe prepared by above patented technology has certain defect in combination property, and heavier in operation installation process, and price comparison is expensive.
Summary of the invention
The object of the invention is: provide a kind of ultra-high molecular weight polyethylene multi-layer co-extruded mining delivery pipe, its rub resistance, cost are low, antistatic, product acid resistant alkali, long service life, can be used as the conveyance conduits such as draining in mine, ventilation, slip casting, gas-removing, high comprehensive performance, is applicable to large-scale production.
The present invention is achieved in that the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene, comprises ultra-high molecular weight polyethylene internal layer, at ultra-high molecular weight polyethylene internal layer, is provided with polymer-modified layer outward, at polymer-modified layer peripheral hardware, has function polymeric outer layer; Wherein the material of polymer-modified layer is that the mass ratio of filler and polymer is 5:95～40:60 through having added filler modified polymer.
Polymer and the outer field polymer of functional polymer in described polymer-modified layer are the wherein combination in any of one or more of UHMWPE, HDPE, LLDPE, LDPE, PP, PVC, PA; Filler in polymer-modified layer is the wherein combination in any of one or more of carbon fiber, carbon black, calcium carbonate, anti-static agent, fire retardant, calcium sulfate.
The thickness of ultra-high molecular weight polyethylene internal layer is 0.1～5mm, and the thickness of polymer-modified layer is 5～50mm, and the outer field thickness of functional polymer is 5～20mm.By changing the thickness of each layer and wear resistance, ageing resistance, impact resistance and the product price that outer and internal and external layer type of polymer is controlled mining delivery pipe.
The preparation method of the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene, adopts multi-layer co-extruded processing mode by ultra-high molecular weight polyethylene, polymer-modified and functional polymer, produces and obtains the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene.
The extruder extrusion parameter of ultra-high molecular weight polyethylene internal layer is: extruding each section of temperature is: 200 ℃, a district, 220 ℃, 2nd district, 230 ℃, 3rd district, 240 ℃, 4th district, 250 ℃, 5th district, 250 ℃, 6th district; Engine speed is 300r/min.
Owing to having adopted above-mentioned technological scheme, the mining delivery pipe that the present invention adopts co-extrusion process to prepare, internal and external layer is ultra-high molecular weight polyethylene, and it has superpower wear resistance, self lubricity, the performance such as strength ratio is higher, stable chemical nature, aging quality resistance are strong; Mesosphere adopts filler modified polymer material; The outer polymeric material that adopts, makes it have the excellent performances such as antistatic, intensity is high, shock resistance.For this reason, the inventor has drawn this experimental program by a large amount of experimental demonstrations.By the content of ultra-high molecular weight polyethylene, filler, polymer being controlled to the combination property of goods, by the optimization to process conditions, obtain preferably mining delivery pipe of performance, adopt the mining delivery pipe of the multi-layer co-extruded preparation of ultra-high molecular weight polyethylene in performance and price, to there is unrivaled advantage.Preparation method of the present invention is simpler and easy, and combination property is better, has certain market competitiveness.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Embodiment
Embodiments of the invention 1: the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene, comprise ultra-high molecular weight polyethylene internal layer 1, outside ultra-high molecular weight polyethylene internal layer 1, be provided with polymer-modified layer 2, at polymer-modified layer 2 peripheral hardware, there is function polymeric outer layer 3; The thickness of ultra-high molecular weight polyethylene internal layer 1 is 2mm, and the thickness of polymer-modified layer 2 is 20mm, and the thickness of functional polymer skin 3 is 10mm.Wherein the material of polymer-modified layer 2 is that the mass ratio of filler and polymer is 20:70 through having added filler modified polymer; Polymer in described polymer-modified layer 2 and the polymer of functional polymer skin 3 are HDPE; Filler in polymer-modified layer 2 is carbon fiber.
The preparation method of the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene, adopts multi-layer co-extruded processing mode by ultra-high molecular weight polyethylene, polymer-modified and functional polymer, produces and obtains the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene.Ultra-high molecular weight polyethylene internal layer 1 extruder extrusion parameter is: extruding each section of temperature is: 200 ℃, a district, 220 ℃, 2nd district, 230 ℃, 3rd district, 240 ℃, 4th district, 250 ℃, 5th district, 250 ℃, 6th district; Engine speed is 300r/min.
Embodiments of the invention 2: the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene, comprise ultra-high molecular weight polyethylene internal layer 1, outside ultra-high molecular weight polyethylene internal layer 1, be provided with polymer-modified layer 2, at polymer-modified layer 2 peripheral hardware, there is function polymeric outer layer 3; The thickness of ultra-high molecular weight polyethylene internal layer 1 is 0.1mm, and the thickness of polymer-modified layer 2 is 5mm, and the thickness of functional polymer skin 3 is 5mm; Wherein the material of polymer-modified layer 2 is that the mass ratio of filler and polymer is 5:95 through having added filler modified polymer; UHMWPE and PP that polymer in described polymer-modified layer 2 and the polymer of functional polymer skin 3 are equivalent; Filler in polymer-modified layer 2 is carbon black, anti-static agent and fire retardant.
Preparation method is with embodiment 1.
Embodiments of the invention 3: the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene, comprise ultra-high molecular weight polyethylene internal layer 1, outside ultra-high molecular weight polyethylene internal layer 1, be provided with polymer-modified layer 2, at polymer-modified layer 2 peripheral hardware, there is function polymeric outer layer 3; The thickness of ultra-high molecular weight polyethylene internal layer 1 is 5mm, and the thickness of polymer-modified layer 2 is 50mm, and the thickness of functional polymer skin 3 is 20mm; Wherein the material of polymer-modified layer 2 is that the mass ratio of filler and polymer is 40:60 through having added filler modified polymer; LDPE and PVC that polymer in described polymer-modified layer 2 and the polymer of functional polymer skin 3 are equivalent; Filler in polymer-modified layer 2 is calcium carbonate and calcium sulfate.
Preparation method is with embodiment 1.
Claims (5)
1. the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene, comprise ultra-high molecular weight polyethylene internal layer (1), it is characterized in that: outside ultra-high molecular weight polyethylene internal layer (1), be provided with polymer-modified layer (2), at polymer-modified layer (2) peripheral hardware, have function polymeric outer layer (3); Wherein the material of polymer-modified layer (2) is that the mass ratio of filler and polymer is 5:95～40:60 through having added filler modified polymer.
2. the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene according to claim 1, is characterized in that: the polymer of the polymer in described polymer-modified layer (2) and functional polymer outer (3) is the wherein combination in any of one or more of UHMWPE, HDPE, LLDPE, LDPE, PP, PVC, PA; Filler in polymer-modified layer (2) is the wherein combination in any of one or more of carbon fiber, carbon black, calcium carbonate, anti-static agent, fire retardant, calcium sulfate.
3. the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene according to claim 1 and 2, it is characterized in that: the thickness of ultra-high molecular weight polyethylene internal layer (1) is 0.1～5mm, the thickness of polymer-modified layer (2) is 5～50mm, and the thickness of functional polymer outer (3) is 5～20mm.
4. the preparation method of the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene as claimed in claim 1, it is characterized in that: ultra-high molecular weight polyethylene, polymer-modified and functional polymer are adopted to multi-layer co-extruded processing mode, produce and obtain the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene.
5. the preparation method of the multi-layer co-extruded mining delivery pipe of ultra-high molecular weight polyethylene according to claim 4, is characterized in that: ultra-high molecular weight polyethylene internal layer (1) extruder extrusion parameter is: extruding each section of temperature is: 200 ℃, a district, 220 ℃, 2nd district, 230 ℃, 3rd district, 240 ℃, 4th district, 250 ℃, 5th district, 250 ℃, 6th district; Engine speed is 300r/min.
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| CN201310719076.5A CN103672197B (en) | 2013-12-24 | 2013-12-24 | Multi-layer co-extruded mining conveying pipe of ultra-high molecular weight polyethylene and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641496A (en) * | 2017-03-21 | 2017-05-10 | 瑞金市金和塑业发展有限公司 | Polyethylene high elasticity modified material tubing |
| CN107965621A (en) * | 2017-11-03 | 2018-04-27 | 金华市华宇管业有限公司 | HDPE is molded push pipe |
| CN110131488A (en) * | 2019-05-29 | 2019-08-16 | 菏泽三垒塑业股份有限公司 | A kind of composite winding pipe material and its production method |
| CN110696456A (en) * | 2019-09-23 | 2020-01-17 | 镇江荣诚管业有限公司 | Polyethylene pipe for underground coal mine and preparation process thereof |
| CN113105680A (en) * | 2021-03-12 | 2021-07-13 | 华南理工大学 | Ultrahigh molecular weight polyethylene pipe and production process thereof |
| CN115873350A (en) * | 2022-11-01 | 2023-03-31 | 佛山市极高建材发展有限公司 | Explosion-proof water pipe material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113105680A (en) * | 2021-03-12 | 2021-07-13 | 华南理工大学 | Ultrahigh molecular weight polyethylene pipe and production process thereof |
| CN113105680B (en) * | 2021-03-12 | 2021-12-17 | 华南理工大学 | Ultrahigh molecular weight polyethylene pipe and production process thereof |
| CN115873350A (en) * | 2022-11-01 | 2023-03-31 | 佛山市极高建材发展有限公司 | Explosion-proof water pipe material and preparation method thereof |
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| CN103672197B (en) | 2016-06-15 |
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