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Two-component temperature-resistant water-based pressure-sensitive adhesive as well as preparation method and application thereof

A pressure-sensitive adhesive, two-component technology, used in adhesives, adhesive types, polyurea/polyurethane adhesives, etc. The effect of improving temperature resistance, increasing crosslinking density, increasing cohesive strength and peeling strength

Inactive Publication Date: 2020-06-05
上海都昱新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the linear molecular structure and lack of cross-linking in the molecule, the pure acrylic resin emulsion PSA has poor water resistance and high temperature resistance.
These deficiencies limit its application. For example, when ethylene-vinyl acetate copolymer (Ethylene-vinyl Acetate Copolymer, EVA) mute film is glued to the back of common imitation wood flooring in the building materials industry, if a one-component pressure-sensitive adhesive emulsion is used, it will be damaged at high temperatures. It is very easy to have problems such as glue opening

Method used

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  • Two-component temperature-resistant water-based pressure-sensitive adhesive as well as preparation method and application thereof
  • Two-component temperature-resistant water-based pressure-sensitive adhesive as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment provides a two-component temperature-resistant water-based pressure-sensitive adhesive, the preparation method of which comprises the following steps:

[0030] (1) Weigh 350kg of water-based acrylic pressure-sensitive emulsion, 122.5kg of tackifying resin, 15kg of thickener, 2.5kg of defoamer, 5kg of bactericide, and 5kg of pH regulator, and set aside. Among them, the water-based acrylic pressure-sensitive emulsion is V206AP emulsion of BASF; the viscosity-increasing emulsion is TSR-5100 emulsion of Tongxuan Lixin; the thickener is RM-8W emulsion of Rohm and Haas; the defoamer is silicone defoamer ; Bactericide is methyl isothiazolinone; pH regulator is a mixture of ethanolamine, diethanolamine and 2-amino-2-methyl-1-propanol.

[0031] (2) The above-mentioned water-based acrylic pressure-sensitive emulsion, viscosifying emulsion, defoamer, bactericide and pH regulator are placed in a 600L reactor, stirred at a frequency of 10Hz and dispersed at a frequen...

Embodiment 2

[0035] This embodiment provides a two-component temperature-resistant water-based pressure-sensitive adhesive, the preparation method of which comprises the following steps:

[0036] (1) Weigh 468.5kg of water-based acrylic pressure-sensitive emulsion, 25kg of viscosifying emulsion, 5kg of thickener, 0.5kg of defoamer, and 1kg of bactericide, and set aside. Among them, the water-based acrylic pressure-sensitive emulsion is BLJ-509 emulsion of Shanghai Polyjia; the viscosity-increasing emulsion is TSR-1650 polymerized rosin emulsion of Tongxuan Lixin; the softening point of polymerized rosin emulsion is 160 ° C; the thickener is hydroxymethyl cellulose A mixture of plain and alkali-swellable acrylic emulsion (Rohm and Haas TT-935 emulsion); the defoamer is a polyether defoamer; the fungicide is methylchloroisothiazolinone and 1,2-benzisothiazole Mixtures in lin-3-ones.

[0037] (2) The above-mentioned water-based acrylic pressure-sensitive emulsion, viscosifying emulsion, defo...

Embodiment 3

[0041] This embodiment provides a two-component temperature-resistant water-based pressure-sensitive adhesive, the preparation method of which comprises the following steps:

[0042](1) Weigh 420.5 kg of water-based acrylic pressure-sensitive emulsion, 60 kg of viscosifying emulsion, 10 kg of thickener, 1.5 kg of defoamer, 4 kg of bactericide, and 4 kg of pH regulator, and set aside. Among them, the water-based acrylic pressure-sensitive emulsion is BLJ-509 emulsion of Shanghai Polyjia; the viscosity-increasing emulsion is TSR-5901 terpene phenol resin emulsion of Tongxuan Lixin; the thickener is hydroxymethyl cellulose; the defoaming agent is polyether Modified silicone defoamer; fungicide is a mixture of methylisothiazolinone, methylchloroisothiazolinone and 1,2-benzisothiazolin-3-one; pH regulator is triethanolamine and ammonia mixture.

[0043] (2) The above-mentioned water-based acrylic pressure-sensitive emulsion, viscosifying emulsion, defoamer, bactericide and pH regu...

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Abstract

The invention discloses a two-component temperature-resistant water-based pressure-sensitive adhesive as well as a preparation method and application thereof, and belongs to the technical field of adhesives. The double-component temperature-resistant water-based pressure-sensitive adhesive comprises a component A and a component B, and the mass ratio of the component A to the component B is 100: (2-15); wherein the component A comprises the following components in percentage by mass: 70%-90% of water-based acrylic pressure-sensitive emulsion, 5%-20% of tackifying emulsion, 1%-3% of a thickening agent, 0.1%-0.5% of a defoaming agent, 0.2%-1% of a bactericide and 0-1% of a pH value regulator, the sum of the mass fractions of the components is 100%; and the component B is polyisocyanate witha hydrophilic group. Compared with a single-component water-based pressure-sensitive adhesive, the double-component water-based pressure-sensitive adhesive prepared by taking polyisocyanate with a hydrophilic group as a component B has relatively good temperature resistance and boiling resistance.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a two-component temperature-resistant water-based pressure-sensitive adhesive and its preparation method and application. Background technique [0002] Water-based acrylate pressure-sensitive adhesive emulsion has high shear strength, wide production sources, simple preparation process, fast film-forming speed, high transparency, and excellent adhesion to various substrates. It is used in adhesives, coatings, leather, building seals, medical There are more and more researches and applications in the fields of polymers and water treatment. [0003] With the enhancement of people's awareness of environmental protection, the demand for emulsion-type acrylic pressure-sensitive adhesives is increasing. Compared with solvent-type pressure-sensitive adhesives, emulsion-type acrylic pressure-sensitive adhesives have low cost, safety, low toxicity, and easy polymerization. Operation, h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/04C09J175/04C09J11/06C09J11/08
CPCC08L2201/08C09J11/06C09J11/08C09J133/04C09J175/04C08L93/04C08K5/47
Inventor 朱飞李常林
Owner 上海都昱新材料科技有限公司
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