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Water-based EVA treating agent and preparation method thereof

A treatment agent, water-based technology, applied in the field of water-based EVA treatment agent and its preparation, can solve the problems of the decrease of the applicability of the treatment agent base material, the decrease of the bonding strength and peel strength of the treatment agent, the decrease of the polarity of the treatment agent, etc. Mechanical strength and bonding properties, enhanced bonding treatment effect, effect of increasing the number and length of strips

Inactive Publication Date: 2022-01-25
全叶娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional treatment agent is organic solvent type, which usually contains a large amount of volatile organic solvents such as acetone and toluene. The volatile organic solvent will be released into the environment, which not only pollutes the environment, wastes resources, but also endangers the health of operators using traditional organic solvent-based treatment agents. healthy
The development of water-based EVA treatment agents is a new direction. However, water-based EVA treatment agents are still in the development stage. Using solvent water to simply replace organic solvents to prepare EVA treatment agents will reduce the polarity of the treatment agent and reduce the applicability of the treatment agent to EVA substrates. , The treatment agent does not match the adhesive, the bonding strength and peel strength of the treatment agent decrease, etc. In addition, the drying time of the treatment agent is long, and the peel strength is low at the initial stage of drying, which cannot meet the efficiency requirements in actual production

Method used

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  • Water-based EVA treating agent and preparation method thereof
  • Water-based EVA treating agent and preparation method thereof
  • Water-based EVA treating agent and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0031] A water-based EVA treatment agent, comprising the following raw materials in parts by mass: 20 parts of ethylene-vinyl acetate copolymer, 20 parts of polyurethane emulsion, 20 parts of ethyl acetate, 5 parts of EVA modified monomer, 5 parts of vinyl acetate, acrylic acid 5 parts of ester emulsion, 0.5 part of initiator, 0.5 part of bis-pentasulfurizing agent, 5 parts of auxiliary agent, 200 parts of ultrapure water;

[0032] The EVA modified monomer is methyl methacrylate;

[0033] Described initiator is benzoyl peroxide;

[0034] The auxiliary agent is an anti-hydrolysis agent and an adhesion promoter, and the mass part ratio is 1:1; wherein the anti-hydrolysis agent is monomeric carbodiimide; wherein the adhesion promoter is a silane coupling agent;

[0035] The preparation method of described aqueous EVA treatment agent, comprises the following steps:

[0036] Step 1: Add mass parts of ethylene-vinyl acetate copolymer into the reaction vessel, then add mass parts o...

Embodiment 2

[0040] A water-based EVA treatment agent, comprising the following raw materials in parts by mass: 40 parts of ethylene-vinyl acetate copolymer, 40 parts of polyurethane emulsion, 40 parts of ethyl acetate, 10 parts of EVA modified monomer, 10 parts of vinyl acetate, acrylic acid 10 parts of ester emulsion, 1 part of initiator, 3 parts of bis-pentasulfurizing agent, 10 parts of auxiliary agent, 500 parts of ultrapure water;

[0041] Described EVA modified monomer is maleic anhydride;

[0042] Described initiator is diisopropyl peroxydicarbonate;

[0043] The auxiliary agent is an anti-hydrolysis agent and an adhesion promoter, and the mass part ratio is 1:1; wherein the anti-hydrolysis agent is polycarbodiimide; wherein the adhesion promoter is a silane coupling agent;

[0044] The preparation method of described aqueous EVA treatment agent, comprises the following steps:

[0045] Step 1: Add mass parts of ethylene-vinyl acetate copolymer into the reaction vessel, then add m...

Embodiment 3

[0049] A water-based EVA treatment agent, comprising the following raw materials in parts by mass: 30 parts of ethylene-vinyl acetate copolymer, 30 parts of polyurethane emulsion, 30 parts of ethyl acetate, 8 parts of EVA modified monomer, 8 parts of vinyl acetate, acrylic acid 8 parts of ester emulsion, 0.8 parts of initiator, 2 parts of bis-pentasulfurizing agent, 7 parts of auxiliary agent, 300 parts of ultrapure water;

[0050] The EVA modified monomer is sulfamic acid;

[0051] Described initiator is tert-butyl peroxybenzoate;

[0052] The auxiliary agent is an anti-hydrolysis agent and an adhesion promoter, and the mass part ratio is 1:1; wherein the anti-hydrolysis agent is monomeric carbodiimide; wherein the adhesion promoter is a silane coupling agent;

[0053] The preparation method of described aqueous EVA treatment agent, comprises the following steps:

[0054] Step 1: Add mass parts of ethylene-vinyl acetate copolymer into the reaction vessel, then add mass part...

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Abstract

The invention relates to the technical field of high polymer materials, in particular to a water-based EVA treating agent and a preparation method thereof. The EVA treating agent comprises the following raw materials in parts by mass: 20-40 parts of an ethylene-vinyl acetate copolymer, 20-40 parts of a polyurethane emulsion, 20-40 parts of ethyl acetate, 5-10 parts of an EVA modified monomer, 5-10 parts of vinyl acetate, 5-10 parts of an acrylate emulsion, 0.5-1 part of an initiator, 0.5-3 parts of a 2, 5-bis(tert-butylperoxy)hexane vulcanizing agent, 5-10 parts of an auxiliary agent and 200-500 parts of ultrapure water. According to the invention, the polarity of the EVA treating agent is enhanced, the compatibility of an EVA substrate and an adhesive is good through the prepared water-based EVA treating agent, the mechanical strength and the adhesive property of the water-based EVA treating agent can be improved, use of volatile organic solvents is reduced, and environmental pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a water-based EVA treatment agent and a preparation method thereof. Background technique [0002] Ethylene-vinyl acetate copolymer (EVA) foaming material has the advantages of high resilience, light weight, good toughness, and low price, and is widely used as a shoe sole material. For direct bonding, it is usually necessary to apply an EVA treatment agent to increase the polarity of the EVA surface, so that the EVA can be bonded to the material through the adhesive. [0003] The traditional treatment agent is organic solvent type, which usually contains a large amount of volatile organic solvents such as acetone and toluene. The volatile organic solvent will be released into the environment, which not only pollutes the environment, wastes resources, but also endangers the health of operators using traditional organic solvent-based treatment agents. healthy. The develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/06C09D175/04C08J7/043C08L23/08C09J5/02
CPCC08J7/043C08J7/0427C09D151/06C09J5/02C08J2323/08C08J2451/06C08J2475/04C08L75/04
Inventor 全叶娟
Owner 全叶娟
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