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Emulsion type acrylate adhesive and preparation method thereof

A technology of acrylates and adhesives, applied in the direction of adhesives, adhesive additives, polymer adhesive additives, etc., can solve problems such as poor low temperature tolerance, easy loss of components, poor environmental performance, etc., to achieve improved stability properties, improving cohesion, good affinity and adhesion

Active Publication Date: 2019-05-07
江阴美源实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, most adhesives still have problems such as poor low temperature tolerance, easy loss of components, and poor environmental protection performance, which restricts the wider application of the above adhesives in light industry to a certain extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of emulsion type acrylic adhesive, comprising the following steps:

[0032] Preparation of W raw gum:

[0033] S1: the composition of the original gum is as follows in parts by weight:

[0034] W1 raw rubber: 17.5 parts of isooctyl acrylate, 30 parts of butyl acrylate, 1.3 parts of acrylic acid, 4 parts of vinyl acetate, 1 part of emulsifier, 0.5 parts of disodium hydrogen phosphate, 0.5 parts of ammonium persulfate, dodecyl mercaptan 0.1 part, 45.1 parts of deionized water; emulsifying agent is sodium lauryl sulfate and DNS-86, and the ratio of described sodium lauryl sulfate and DNS-86 is 1:1;

[0035] W2 raw rubber: 17.5 parts of isooctyl acrylate, 30 parts of butyl acrylate, 1.3 parts of acrylic acid, 4 parts of vinyl acetate, 1 part of emulsifier, 0.5 parts of disodium hydrogen phosphate, 0.5 parts of ammonium persulfate, dodecyl mercaptan 0.2 parts, 45 parts of deionized water;

[0036] W3 raw rubber: 17.5 parts of isooctyl acrylate, 30 par...

Embodiment 2

[0048] A preparation method of emulsion type acrylic adhesive, comprising the following steps:

[0049] Preparation of W raw gum:

[0050] S1: the composition of the original gum is as follows in parts by weight:

[0051] W1 raw rubber: 15 parts of isooctyl acrylate, 35 parts of butyl acrylate, 2 parts of acrylic acid, 5 parts of vinyl acetate, 1 part of emulsifier, 0.5 parts of disodium hydrogen phosphate, 0.5 parts of ammonium persulfate, dodecyl mercaptan 0.1 part, 40.9 parts of deionized water; emulsifying agent is sodium lauryl sulfate and DNS-86, and the ratio of described sodium lauryl sulfate and DNS-86 is 1:1;

[0052] W2 raw rubber: 15 parts of isooctyl acrylate, 35 parts of butyl acrylate, 2 parts of acrylic acid, 5 parts of vinyl acetate, 1 part of emulsifier, 0.5 parts of disodium hydrogen phosphate, 0.5 parts of ammonium persulfate, dodecyl mercaptan 0.2 part, 40.8 parts of deionized water; Emulsifier is sodium lauryl sulfate and DNS-86, and the ratio of descri...

Embodiment 3

[0065] A preparation method of emulsion type acrylic adhesive, comprising the following steps:

[0066] Preparation of W raw gum:

[0067] S1: the composition of the original gum is as follows in parts by weight:

[0068] W1 raw rubber: 20 parts of isooctyl acrylate, 30 parts of butyl acrylate, 1 part of acrylic acid, 4 parts of vinyl acetate, 1 part of emulsifier, 0.5 parts of disodium hydrogen phosphate, 0.5 parts of ammonium persulfate, dodecyl mercaptan 0.1 part, 42.9 parts of deionized water; emulsifier is sodium lauryl sulfate and DNS-86, and the ratio of described sodium lauryl sulfate and DNS-86 is 1:1;

[0069] W2 raw rubber: 20 parts of isooctyl acrylate, 30 parts of butyl acrylate, 1 part of acrylic acid, 4 parts of vinyl acetate, 1 part of emulsifier, 0.5 parts of disodium hydrogen phosphate, 0.5 parts of ammonium persulfate, dodecyl mercaptan 0.2 part, 42.9 parts of deionized water; Emulsifier is sodium lauryl sulfate and DNS-86, and the ratio of described sodiu...

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Abstract

The invention discloses a preparation method for an emulsion type acrylate adhesive. According to the invention, preparation of original adhesives W is as follows: an original adhesive is composed of15 to 20 parts of isooctyl acrylate, 25 to 35 parts of butyl acrylate, 1 to 2 parts of acrylic acid, 3 to 5 parts of vinyl acetate, 0.5 to 3 parts of an emulsifying agent, 0.1 to 1 part of disodium hydrogen phosphate, 0.1 to 1 part of ammonium persulfate, 0.1 to 0.3 part of dodecyl mercaptan and 40 to 50 parts of deionized water, and the original adhesive is prepared by adoption of a semi-continuous dropwise addition method; emulsion tackifying resin is composed of 40 to 50 parts of rosin tackifying resin, 3 to 8 parts of an emulsifying agent and 45 to 55 parts of deionized water; and an adhesive W is composed of 5 to 15 parts of an original adhesive W1, 10 to 30 parts of an original adhesive W2, 25 to 35 parts of an original adhesive W3, 30 to 50 parts of the emulsion tackifying resin, 0.5 to 3 parts of a cross-linking agent and 0.5 to 3 parts of a thickening agent. The adhesive provided by the invention is adopted to prepare a low-temperature-resistant double-sided adhesive tape which is a solvent-free environmentally-friendly adhesive tape and has good initial tackiness.

Description

technical field [0001] The invention relates to the technical field of adhesive materials, in particular to an emulsion type acrylic adhesive and a preparation method thereof. Background technique [0002] Emulsion-type acrylic adhesives have the characteristics of environmental protection and pollution-free, a wide range of raw material sources, condensable volatiles and low mass loss rate, and are widely used in many fields such as construction, electronic appliances, and books. Since the acrylic polymer is a thermoplastic resin, the cohesion is not ideal. In order to further improve the cohesion and bonding strength, the performance of the glue is greatly improved by optimizing the formula of the adhesive. However, most adhesives currently have problems such as poor low temperature tolerance, easy loss of components, and poor environmental performance, which to a certain extent restricts the wider application of the above-mentioned adhesives in light industry. Contents ...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/06C08F218/08C08F2/26C08F2/30C09J4/02C09J4/06C09J11/08C09J7/21
Inventor 王国伟
Owner 江阴美源实业有限公司
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