Yellowing-resistant aqueous adhesive and preparation method thereof

An adhesive, anti-yellowing technology, used in adhesives, adhesive types, adhesive additives, etc., can solve the problems of affecting product appearance and quality, low 180° peel strength, poor bonding performance, etc., to prolong the appearance. and quality time, good high/low temperature resistance, good yellowing resistance

Active Publication Date: 2019-11-19
福建省统一环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The existing adhesive (glue) is prone to change in the sun, and white and light colors will turn yellow. For example, the white shoe lining and upper (also called shoe upper) will turn yellow after a period of time, which seriously affects the ap...

Method used

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  • Yellowing-resistant aqueous adhesive and preparation method thereof
  • Yellowing-resistant aqueous adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] An anti-yellowing water-based adhesive, made of the following raw materials in parts by weight: 38-48 parts of polyvinyl alcohol, 23-29 parts of water-soluble polyvinyl formal, 28-35 parts of water-based ethylene-vinyl acetate copolymer 12-16 parts of silicone acrylic emulsion, 2-4 parts of emulsifier, 3-6 parts of ultraviolet absorber, 2.5-4 parts of antioxidant; the ultraviolet absorber is 2-(2ˊ-hydroxyl-5ˊ-methylbenzene base) a mixture of benzotriazole and resorcinol monobenzoate.

[0036] Preferably, the anti-yellowing water-based adhesive is made of the following raw materials in parts by weight: 43 parts of polyvinyl alcohol, 26.5 parts of water-soluble polyvinyl formal, 31.5 parts of water-based ethylene-vinyl acetate copolymer, silicone acrylic 14 parts of emulsions, 3.2 parts of emulsifiers, 4.8 parts of ultraviolet absorbers, and 3.6 parts of antioxidants; A mixture of quinone esters.

[0037] Preferably, in the mixture of 2-(2'-hydroxyl-5'-methylphenyl) ben...

Embodiment 2

[0046] An anti-yellowing water-based adhesive, made of the following raw materials in parts by weight: 38 parts of polyvinyl alcohol, 23 parts of water-soluble polyvinyl formal, 28 parts of water-based ethylene-vinyl acetate copolymer, 12 parts of silicon-acrylic emulsion 2 parts, 2 parts of emulsifier, 3 parts of ultraviolet absorber, 2.5 parts of antioxidant; Described ultraviolet absorber is 2-(2'-hydroxyl-5'-methylphenyl) benzotriazole and isophthalic acid monobenzoic acid A mixture of phenolic esters.

[0047] In this example, in the mixture of 2-(2'-hydroxy-5'-methylphenyl)benzotriazole and resorcinol monobenzoate, 2-(2'-hydroxyl-5'-methyl The mass ratio of phenyl)benzotriazole to resorcinol monobenzoate is 1:0.6.

[0048] In this embodiment, the polyvinyl alcohol is 1799 type polyvinyl alcohol.

[0049] In this embodiment, the emulsifier is cocoamine polyoxyethylene ether.

[0050] In this embodiment, the antioxidant is tetrakis[β-(3,5-di-tert-butyl 4-hydroxyphenyl) ...

Embodiment 3

[0057] An anti-yellowing water-based adhesive, made of the following raw materials in parts by weight: 48 parts of polyvinyl alcohol, 29 parts of water-soluble polyvinyl formal, 35 parts of water-based ethylene-vinyl acetate copolymer, 16 parts of silicon acrylic emulsion part, 4 parts of emulsifier, 6 parts of ultraviolet absorber, 4 parts of antioxidant; Described ultraviolet absorber is 2-(2'-hydroxyl-5'-methylphenyl) benzotriazole and monobenzoic acid A mixture of phenolic esters.

[0058] In this example, in the mixture of 2-(2'-hydroxy-5'-methylphenyl)benzotriazole and resorcinol monobenzoate, 2-(2'-hydroxyl-5'-methyl The mass ratio of phenyl)benzotriazole to resorcinol monobenzoate is 1:0.7.

[0059] In this embodiment, the polyvinyl alcohol is 1799 type polyvinyl alcohol.

[0060] In this embodiment, the emulsifier is cocoamine polyoxyethylene ether.

[0061] In this embodiment, the antioxidant is tetrakis[β-(3,5-di-tert-butyl 4-hydroxyphenyl) propionate] pentaeryth...

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Abstract

The invention discloses a yellowing-resistant aqueous adhesive and a preparation method thereof, wherein the yellowing-resistant aqueous adhesive is prepared from the following raw materials by weight: 38-48 parts of polyvinyl alcohol, 23-29 parts of aqueous polyvinyl formal, 28-35 parts of an aqueous ethylene-vinyl acetate copolymer, 12-16 parts of silicone-acrylic emulsion, 2-4 parts of an emulsifier, 3-6 parts of an ultraviolet ray absorber, and 2.5-4 parts of an antioxidant, wherein the ultraviolet ray absorber is a mixture of 2-(2'-hydroxy-5'-methylphenyl)benzotriazole and resorcinol monobenzoate. According to the present invention, by selecting the raw materials and optimizing the ratio of the raw materials, the advantages of various raw materials are completely provided, and complement and promote each other, and the prepared yellowing-resistant aqueous adhesive has advantages of good yellowing resistance, good high/low temperature resistance and high 180 DEG peel strength.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a yellowing-resistant water-based adhesive and a preparation method thereof. Background technique [0002] With the development of industry, the application market of adhesives (glue, or adhesives) is becoming more and more extensive, and the varieties are also increasing. Commonly used adhesives mainly include solvent-based, water-based and hot-melt types. At present, the amount of solvent-based products is relatively large. It uses volatile organic compounds such as benzene and toluene as solvents. These solvents will directly volatilize into the atmosphere during use to pollute the environment and endanger the health of workers. Therefore, many foreign government departments Promulgation of laws and regulations to limit the use of volatile organic compounds, the transformation of adhesives from solvent-based to water-based has become inevitable. [0003] Water-based (based) adhesives...

Claims

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Application Information

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IPC IPC(8): C09J129/04C09J129/14C09J123/08C09J133/04C09J11/06C09J11/08
CPCC08L2201/08C08L2205/02C08L2205/035C09J11/06C09J11/08C09J129/04C08L29/14C08L23/0853C08L43/04C08K5/3475C08K5/107
Inventor 邓宋明张国华
Owner 福建省统一环保科技有限公司
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