CN102965036A - Nano-wollastonite modified adhesive for packaging - Google Patents

Abstract

The invention discloses a nano-wollastonite modified adhesive for packaging. The adhesive is prepared from the following raw materials in parts by weight: The adhesive is prepared from the following raw materials in parts by weight: 100-120 parts of styrene, 100-150 parts of ethyl acetate, 20-25 parts of duprene rubber CR121, 15-20 parts of xylene, 1-2 parts of 4,4'-diphenyl methane diisocyanate, 8-12 parts of polyisobutylene, 2-3 parts of (3-aminopropyl)trimethoxysilane, 2-3 parts of polytetramethylene ether glycol, 3-5 parts of SG-2 PVC (polyvinyl chloride) resin, 1-2 parts of ferrocene, 10-15 parts of 704 silicon rubber, 8-12 parts of butyl rubber CBK139, 3-5 parts of epoxidized soybean oil, and the like. The adhesive is excellent in heat resistance heat resistance and cold resistance, high in cohesive strength, water-resistant, moisture-proof, good in storage stability, good in environment friendliness, good in using effect and convenient.

Description

The adhesive for packaging that a kind of nanometer is Wollastonite modified

Technical field

The present invention relates to a kind of sizing agent, be specifically related to the Wollastonite modified adhesive for packaging of a kind of nanometer.

Background technology

Adhesive for packaging is in the generation of the basis of packaging industry fast development and develops, the performance of adhesive for packaging, quality have directly affected packing effect and quality, present wrapping sizing agent ubiquity thermotolerance is relatively poor, and winter hardiness is not good, and package stability is poor.Relatively poor in order to overcome traditional sizing agent thermotolerance, the shortcoming such as winter hardiness is not good, and package stability is poor by improving prescription, thereby is produced a kind of novel package sizing agent.

Summary of the invention

The purpose of this invention is to provide that a kind of thermal insulation is good, water-tolerant, cohesive strength are high, the Wollastonite modified adhesive for packaging of nanometer of excellent storage stability.

The technical solution used in the present invention is as follows:

The adhesive for packaging that a kind of nanometer is Wollastonite modified, raw material by following weight part is made: vinylbenzene 100-120, ethyl acetate 100-150, chloroprene rubber CR121 20-25, dimethylbenzene 15-20,4,4 '-diphenylmethanediisocyanate 1-2, polyisobutene 8-12,3-aminopropyl trimethoxysilane 2-3, PTMG 2-3, SG-2 type polyvinyl chloride resin 3-5, ferrocene 1-2,704 silicon rubber 10-15, isoprene-isobutylene rubber CBK139 8-12, epoxy soybean oil 3-5, phthalic acid dibutyl ester 3-5, clorafin 1-2, sulphur 0.5-1, zinc oxide 3-5, Imarcaptoacetate dioctyltin 1-2, nano-silicon lime stone 10-15, nanometer Feldspar Powder 5-10, titanium dioxide 5-10, titanate coupling agent TMC-TTS 1-2, oxidation inhibitor 1035 1-2, antioxidant MB 2-3, anti-scorching agent CTP 1-2, Vulcanization accelerator TMTD 1-2, altax 1-2, accelerant N a-22 1-2, modification trees ashes 1-2.

Described modification trees ashes are made by following steps: use first 10-15% salt acid soak trees ashes 3-4h, deionized water wash is clean, soak 3-4h with the 10-12% sodium hydroxide solution again, extremely neutral with deionized water wash again, oven dry adds and is equivalent to the sodium lignosulfonate of trees ashes weight 2-3%, the paregal O of 1-2%, the phthalic ester of 2-3%, the talcum powder of 3-5%, and high speed 1200-1500r/min stirs 1-2h, oven dry, pulverizing grinds to form ultrafine powder and gets final product.

The preparation method of the adhesive for packaging that nanometer is Wollastonite modified may further comprise the steps:

(1) with vinylbenzene, ethyl acetate, chloroprene rubber CR121, dimethylbenzene, 4,4 '-diphenylmethanediisocyanate, polyisobutene, 3-aminopropyl trimethoxysilane, PTMG, SG-2 type polyvinyl chloride resin, ferrocene, 704 silicon rubber, isoprene-isobutylene rubber CBK139 mix, at 100-120 ℃ of lower reaction 1-2h;

(2) other material is mixed with reactant, stir 30-40min, obtain finished product, packing gets final product.

Beneficial effect of the present invention:

The present invention has improved it at the dispersing uniformity in the sizing agent component by the trees ashes are carried out modification, thereby can obviously improve bonding strength and the water tolerance of sizing agent, and it is low to have a cost, the characteristics that effect is good.The present invention adds the nano-silicon lime stone sizing agent is carried out modification by to formula adjustment, can obviously improve the performance such as heat-resisting, water-fast, wear-resisting of sizing agent.Chloroprene rubber sizing agent of the present invention has good thermotolerance, winter hardiness, and cohesive strength is high, water-fast protection against the tide, and excellent storage stability, the feature of environmental protection is good, and result of use is good and convenient.

Embodiment

The present invention is further illustrated below in conjunction with specific embodiment.

Embodiment

The adhesive for packaging that a kind of nanometer is Wollastonite modified, raw material by following weight part is made: 120 parts of vinylbenzene, 120 parts of ethyl acetate, 22 parts of chloroprene rubber CR121,18 parts of dimethylbenzene, 4,1.6 parts of 4 '-diphenylmethanediisocyanates, 10 parts of polyisobutene, 2 parts of 3-aminopropyl trimethoxysilane, 3 parts of PTMG, 5 parts of SG-2 type polyvinyl chloride resins, 2 parts of ferrocene, 12 parts in 704 silicon rubber, 8 parts of isoprene-isobutylene rubber CBK139,5 parts of epoxy soybean oils, 4 parts of phthalic acid dibutyl esters, 2 parts of clorafins, 1 part in sulphur, 4 parts in zinc oxide, 2 parts of Imarcaptoacetate dioctyltins, 15 parts of nano-silicon lime stones, 8 parts of nanometer Feldspar Powders, 8 parts of titanium dioxides, 1.5 parts of titanate coupling agent TMC-TTS, 1,035 1.8 parts in oxidation inhibitor, 2 parts of antioxidant MBs, 1.6 parts of anti-scorching agent CTPs, 1 part of Vulcanization accelerator TMTD, 1 part of altax, 2 parts of accelerant N a-22,2 parts in modification trees ashes.

Wherein, described modification trees ashes are made by following steps: use first 12% salt acid soak trees ashes 4h, deionized water wash is clean, soak 4h with 10% sodium hydroxide solution again, extremely neutral with deionized water wash again, oven dry, add and be equivalent to the sodium lignosulfonate of trees ashes weight 2%, 2% paregal O, 3% phthalic ester, 5% talcum powder, high speed 1500r/min stirs 2h, oven dry, and pulverizing grinds to form ultrafine powder and gets final product.

The preparation method of the adhesive for packaging that nanometer is Wollastonite modified may further comprise the steps:

(1) with vinylbenzene, ethyl acetate, chloroprene rubber CR121, dimethylbenzene, 4,4 '-diphenylmethanediisocyanate, polyisobutene, 3-aminopropyl trimethoxysilane, PTMG, SG-2 type polyvinyl chloride resin, ferrocene, 704 silicon rubber, isoprene-isobutylene rubber CBK139 mix, at 108 ℃ of lower reaction 2h;

(2) other material is mixed with reactant, stir 40min, obtain finished product, packing gets final product.

The salient features of the sizing agent that present embodiment makes such as following table 1.

Table 1

Performance project	Test result
		Shearing resistance (MPa)	27
Tensile strength (MPa)	38
		Stripping strength (N/cm)	75

Claims (3)

1. adhesive for packaging that nanometer is Wollastonite modified, it is characterized in that, raw material by following weight part is made: vinylbenzene 100-120, ethyl acetate 100-150, chloroprene rubber CR121 20-25, dimethylbenzene 15-20,4,4 '-diphenylmethanediisocyanate 1-2, polyisobutene 8-12,3-aminopropyl trimethoxysilane 2-3, PTMG 2-3, SG-2 type polyvinyl chloride resin 3-5, ferrocene 1-2,704 silicon rubber 10-15, isoprene-isobutylene rubber CBK139 8-12, epoxy soybean oil 3-5, phthalic acid dibutyl ester 3-5, clorafin 1-2, sulphur 0.5-1, zinc oxide 3-5, Imarcaptoacetate dioctyltin 1-2, nano-silicon lime stone 10-15, nanometer Feldspar Powder 5-10, titanium dioxide 5-10, titanate coupling agent TMC-TTS 1-2, oxidation inhibitor 1035 1-2, antioxidant MB 2-3, anti-scorching agent CTP 1-2, Vulcanization accelerator TMTD 1-2, altax 1-2, accelerant N a-22 1-2, modification trees ashes 1-2.

2. the Wollastonite modified adhesive for packaging of nanometer according to claim 1, it is characterized in that, described modification trees ashes are made by following steps: use first 10-15% salt acid soak trees ashes 3-4h, deionized water wash is clean, soak 3-4h with the 10-12% sodium hydroxide solution again, extremely neutral with deionized water wash again, oven dry, add the sodium lignosulfonate that is equivalent to trees ashes weight 2-3%, the paregal O of 1-2%, the phthalic ester of 2-3%, the talcum powder of 3-5%, high speed 1200-1500r/min stirs 1-2h, oven dry, pulverizing grinds to form ultrafine powder and gets final product.

3. the preparation method of the Wollastonite modified adhesive for packaging of a nanometer as claimed in claim 1 is characterized in that may further comprise the steps:

(1) with vinylbenzene, ethyl acetate, chloroprene rubber CR121, dimethylbenzene, 4,4 '-diphenylmethanediisocyanate, polyisobutene, 3-aminopropyl trimethoxysilane, PTMG, SG-2 type polyvinyl chloride resin, ferrocene, 704 silicon rubber, isoprene-isobutylene rubber CBK139 mix, at 100-120 ℃ of lower reaction 1-2h;

(2) other material is mixed with reactant, stir 30-40min, obtain finished product, packing gets final product.