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Acrylic ester pressure-sensitive adhesive with high permanent adhesion performance at 80 DEG C and preparation method thereof

A pressure-sensitive adhesive, acrylate technology, applied in the direction of polymer adhesive additives, adhesive types, ester copolymer adhesives, etc., to achieve the effect of excellent stickiness

Inactive Publication Date: 2017-03-22
WUXI HAITE NEW MATERIAL RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem of stickiness of existing acrylate pressure-sensitive adhesives in a certain temperature range, and provides a 80°C high-temperature adhesive that can closely stick to the adherend during use, and the adhesive layer has no residue or trace after peeling off. Longevity Acrylic Pressure Sensitive Adhesives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Prepare raw materials by the following parts by weight:

[0030] A: 60 parts of isooctyl acrylate

[0031] 10 parts methyl acrylate

[0032] 0.5 parts of acrylamide

[0033] 4 parts acrylic

[0034] 0.5 parts of hydroxyethyl acrylate

[0035] Initiator: 0.5 parts of azobisisobutyronitrile

[0036] Mixed solvent: 35 parts of toluene + 80 parts of ethyl acetate

[0037] B: 22 parts of phenolic modified terpene resin (Sylvares TP300)

[0038] C: 2 parts of TDI trimer (dissolved with 5 parts of toluene)

[0039] Put all the reaction monomers (isooctyl acrylate, methyl acrylate, acrylamide, acrylic acid, hydroxyethyl acrylate) into the reactor as a primer, add part of the mixed solvent so that the total monomer content is not less than 60wt%, and press 7 / 10,000 of the total weight of the monomer is added to the initiator, stirred and mixed at a speed of 90r / min-250r / min, heated, and the reaction temperature is controlled at 75°C-82°C by solvent reflux. After the reac...

Embodiment 2

[0042] Prepare raw materials by the following parts by weight:

[0043] A: 50 parts of butyl acrylate

[0044] 10 parts of isooctyl acrylate

[0045] 5 parts ethyl acrylate

[0046] 5 parts vinyl acetate

[0047] 2 parts itaconic acid

[0048] Hydroxypropyl Acrylate 0.5

[0049] Initiator: 0.7 parts of dibenzoyl peroxide

[0050] Mixed solvent: 27 parts of butyl acetate + 70 parts of ethyl acetate + 5 parts of cyclohexane

[0051] B: 15 parts of phenolic resin

[0052] C: 0.5 parts of zirconium acetylacetonate (dissolved in 15 parts of toluene)

[0053] Add all reaction monomers (butyl acrylate, isooctyl acrylate, ethyl acrylate, vinyl acetate, itaconic acid, hydroxypropyl acrylate) into the reaction kettle as a primer, and add part of the mixed solvent so that the total monomer content does not It is less than 60wt%, and the initiator is added according to 7 / 10,000 of the total weight of the monomer, stirred and mixed at a speed of 90r / min-250r / min, heated, and the re...

Embodiment 3

[0056] Prepare raw materials by the following parts by weight:

[0057] A: 55 parts of isooctyl acrylate

[0058] Butyl acrylate 15 parts

[0059] Acrylamide 8 parts

[0060] 6 parts methacrylic acid

[0061] 0.4 parts of hydroxyethyl acrylate

[0062] Initiator: 0.6 parts of azobisisoheptanonitrile

[0063] Mixed solvent: 16.5 parts of toluene + 100 parts of ethyl acetate

[0064] B: 18 parts of phenolic modified rosin resin (Sylvares TP300)

[0065] C: 0.2 parts of aluminum acetylacetonate + 0.3 parts of HDI trimer (dissolved with 17 parts of toluene)

[0066]Add all reaction monomers (isooctyl acrylate, butyl acrylate, acrylamide, methacrylic acid, hydroxyethyl acrylate) into the reactor as a primer, and add part of the mixed solvent so that the total monomer content is not less than 60wt%. Add the initiator according to 5 / 10,000 of the total weight of the monomer, stir and mix evenly at a speed of 90r / min-250r / min, heat, and control the reaction temperature at 75°C-...

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Abstract

The invention relates to an acrylic ester pressure-sensitive adhesive with the high permanent adhesion performance at 80 DEG C. The acrylic ester pressure-sensitive adhesive is prepared from, by weight, 55-90 parts of acrylic ester soft monomers, 5-25 parts of acrylic ester hard monomers, 0.5-15 parts of reaction-type functional monomers, 0.2-3 parts of an initiating agent, 5-30 parts of tackifying resin, 0.5-5 parts of a curing agent and 60-200 parts of a solvent. The acrylic ester pressure-sensitive adhesive is prepared through the processes that the acrylic ester soft monomers, the acrylic ester hard monomers, the reaction-type functional monomers and part of the initiating agent are dissolved, the total concentration of the monomers is controlled to be not lower than 60 wt%, the weight of the initiating agent accounts for 0.04%-0.1% of the total weight of the monomers, and heating reflux is conducted for 3-6 h; the remaining initiating agent is dropwise added, reacting continues for 0.5-2 h after dropwise adding, diluting and reacting are conducted step by step, and the obtained material is uniformly mixed with the tackifying resin and the curing agent. According to the pressure-sensitive adhesive prepared through the method, the performance is excellent, and a permanent adhesion performance test shows that displacement is not generated after the pressure-sensitive adhesive exists for 48 h at 80 DEG C.

Description

technical field [0001] The invention belongs to the field of adhesives, and in particular relates to an acrylate pressure-sensitive adhesive with high stickiness at 80°C and a preparation method thereof. Background technique [0002] Acrylate pressure-sensitive adhesive with high stickiness is a new technical index proposed by the high-performance protective film industry. It is required that the protective film has good wettability to the adhered surface at a certain temperature, and it will not warp and fall from the adhered surface during use. After peeling off, there is no residual adhesive on the surface of the adherend and maintains high peel strength. A 80°C high-stick performance acrylic pressure-sensitive adhesive that meets the requirements of the high-performance protective film industry has been developed to improve the application range of acrylic pressure-sensitive adhesive products. is very important. Contents of the invention [0003] The present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J11/08C08F220/18C08F220/14C08F220/56C08F220/06C08F220/28C08F218/08C08F212/08C08F222/02C08F220/58
CPCC08F220/18C08F220/1804C08F220/1808C09J11/08C09J133/08C08L45/00C08L61/06C08L93/04C08F220/56C08F220/06C08F220/281C08F220/14C08F212/08C08F220/58C08F218/08C08F222/02
Inventor 李卫东曹英杰白永平邓庆瑞张晓勇刘多新李晶波殷晓芬席丹
Owner WUXI HAITE NEW MATERIAL RES INST
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