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Silicone acrylic-epoxy structure pressure-sensitive adhesive and preparation method thereof

A technology of pressure-sensitive adhesive and silica sol, which is applied in the direction of adhesives, non-polymer adhesive additives, adhesive types, etc., can solve the problems of weak adhesion, poor environmental protection, complicated use, etc., and achieve strong adhesion , low production cost, environmental protection effect

Inactive Publication Date: 2018-09-21
成都富莱诺尔新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pressure-sensitive adhesives in the prior art have disadvantages such as poor environmental protection, weak adhesion, high cost, and complicated use. Therefore, it is still necessary to develop new types of pressure-sensitive adhesives.

Method used

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  • Silicone acrylic-epoxy structure pressure-sensitive adhesive and preparation method thereof

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Experimental program
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preparation example Construction

[0030] The preparation method of the first composition comprises the steps:

[0031] S101: adding the thickener into water, stirring at 70-90° C. for 0.8-1.2 hours, to obtain an aqueous thickener solution with a mass fraction of the thickener of 25%-35%;

[0032] S102: uniformly mix the acrylate silicone emulsion, the catalyst and the silica sol, then add an aqueous thickener solution, and mix uniformly to obtain the first composition;

[0033] The preparation method of the second composition comprises the steps:

[0034] Mix the viscosifying emulsion and the epoxy resin emulsion evenly, then add calcium sulfate whiskers and a thickener, and mix evenly to obtain the second composition.

Embodiment 1

[0037] This embodiment provides a pressure-sensitive adhesive, including a first composition and a second composition:

[0038] The raw material components of the first composition include by weight: 80 parts by weight of acrylate silicone emulsion, 3 parts by weight of N,N dimethylaniline (catalyst), 10 parts by weight of polyvinyl alcohol 1799 (thickener) And 7 parts by weight of silica sol;

[0039] Among them, the acrylate silicone emulsion is composed of methyl methacrylate (acrylic acid monomer), vinyl-terminated polydimethylsiloxane (functional polysiloxane), vinyl trimethoxysilane (organic silicon monomer) Body) obtained by emulsion polymerization with a mass ratio of 30:15:1;

[0040]The raw material component of the second composition comprises by weight: 15 parts by weight of viscosifying emulsion, 15 parts by weight of calcium sulfate whisker, 20 parts by weight of polyvinyl alcohol 1799 (thickener) and 50 parts by weight of epoxy resin emulsion ;

[0041] The f...

Embodiment 2

[0049] This embodiment provides a pressure-sensitive adhesive, including a first composition and a second composition:

[0050] The raw material components of the first composition include by weight: 70 parts by weight of acrylate silicone emulsion, 2 parts by weight of N,N dimethylaniline (catalyst), 8 parts by weight of polyvinyl alcohol 1799 (thickener) And 5 parts by weight of silica sol;

[0051] Among them, the acrylate silicone emulsion is composed of methyl methacrylate (acrylic acid monomer), vinyl-terminated polydimethylsiloxane (functional polysiloxane), vinyl trimethoxysilane (organic silicon monomer) Body) obtained by emulsion polymerization with a mass ratio of 20:10:1;

[0052] The raw material component of the second composition comprises by weight: 10 parts by weight of viscosifying emulsion, 13 parts by weight of calcium sulfate whisker, 15 parts by weight of polyvinyl alcohol 1799 (thickener) and 40 parts by weight of epoxy resin emulsion ;

[0053] The f...

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Abstract

The invention relates to a novel silicone acrylate-epoxy structure pressure-sensitive adhesive and a preparation method thereof. The pressure-sensitive adhesive contains a first composition and a second composition, wherein the first composition is prepared from the following raw materials in parts by weight: 70-90 parts of an acrylate organic silicone emulsion, 2-4 parts of catalyst, 8-12 parts of a thickener and 5-10 parts of silica sol; the second composition is prepared from the following raw materials in parts by weight: 10-20 parts of a viscous emulsion, 13-17 parts of calcium sulfate whiskers, 15-25 parts of a thickener and 40-60 parts of an epoxy resin emulsion; and the first composition and the second composition are independently packaged. The pressure-sensitive adhesive is high in adhesive force, friendly to environment and convenient to use, the preparation method is simple and the production cost is low.

Description

technical field [0001] The invention relates to the technical field of chemical adhesives, in particular to a silicone acrylic-epoxy structural pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Hot melt adhesive is a kind of plastic adhesive, which is in a solid state at room temperature, and can be quickly bonded after heating and melting, and has the advantages of fast bonding and high bonding strength. However, the preparation and construction process of hot-melt adhesives are special, requiring special heating equipment to be heated to above 120°C before use; and before using hot-melt adhesives, high-power heating equipment is required to preheat the hot-melt adhesives to reach the required temperature Finally, it must be kept warm, resulting in higher electricity costs; moreover, the price of hot-melt collagen materials is also higher. [0003] Pressure-sensitive adhesive is a kind of pressure-sensitive adhesive, which is mainl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J151/08C09J11/08C09J11/04
CPCC08L2205/03C09J11/04C09J11/08C09J151/08C09J2301/302C08L63/00C08L29/04C08K7/08
Inventor 张发兴
Owner 成都富莱诺尔新材料有限公司