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EVA treating agent and preparation method thereof

A treatment agent and cross-linking agent technology, applied in the field of EVA treatment agent and its preparation, can solve problems such as volatile, environmental pollution, health impact of operators, etc., and achieve good weather resistance, excellent permeability, and good treatment effect

Inactive Publication Date: 2021-09-17
佛山市高明大都化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of grafting and modifying SBS with monomers such as acrylic acid is generally used in the industry to synthesize EVA surface treatment agents to solve the adhesion problem of EVA materials, but solvents such as toluene are used, which are volatile when used, and are easy to pollute the environment and have a negative impact on the environment. health of operators

Method used

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  • EVA treating agent and preparation method thereof
  • EVA treating agent and preparation method thereof
  • EVA treating agent and preparation method thereof

Examples

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preparation example Construction

[0027] The preparation method of above-mentioned EVA treatment agent, comprises the following steps:

[0028] A. Mix methylcyclohexane and cyclohexane, stir evenly, add SBS, EVA-265 and maleic anhydride to stir, start heating and fill with nitrogen to protect until the reaction is complete;

[0029] B. After complete dissolution, when the internal temperature reaches 80°C, add hydroxyethyl methacrylate and methyl methacrylate to mix, and stir evenly;

[0030] C. When the internal temperature reaches 80°C-85°C, add dibenzoyl peroxide and dimethyl carbonate to ethyl acetate and stir to dissolve, add to the mixture obtained in step B, and add a crosslinking agent, stir and mix evenly and then keep the temperature Start the reaction at 85°C-90°C for 4 hours, then cool down to terminate the reaction;

[0031] D. When the internal temperature drops below 50°C, add anti-aging agent and stir to mix;

[0032] E. Add chlorinated polyethylene, chlorinated rubber, and dibutyl hydroxytol...

Embodiment 1-3 and comparative example 1-5

[0035] Examples 1-3 and Comparative Examples 1-5 were prepared according to the components in parts by mass shown in Table 1 below.

[0036] Table 1 embodiment 1-3 and comparative example 1-5 group distribution ratio

[0037]

[0038]

Embodiment 1

[0040] An EVA treatment agent is prepared according to the following preparation method, and the following parts are parts by mass:

[0041] A. Mix 5 parts of methylcyclohexane and 10 parts of cyclohexane, stir evenly, add 1 part of SBS, 5 parts of EVA-265 and 2 parts of maleic anhydride, stir, start heating and fill with nitrogen to protect until the reaction is complete;

[0042] B. After complete dissolution, when the internal temperature reaches 80°C, add 0.5 parts of hydroxyethyl methacrylate and 8 parts of methyl methacrylate to mix, and stir evenly;

[0043] C. When the internal temperature reaches 80°C-85°C, add 0.2 parts of dibenzoyl peroxide and 10 parts of dimethyl carbonate to 20 parts of ethyl acetate and stir to dissolve, add to the mixture obtained in step B, and add 0.5 parts of KH -560, Stir and mix evenly, then start the reaction at a constant temperature of 85°C-90°C for 4 hours, then cool down to terminate the reaction;

[0044] D. Add 0.1 parts of BHT whe...

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Abstract

The invention discloses an EVA treating agent which is prepared from the following components in parts by mass: 1 to 3 parts of SBS, 5 to 10 parts of EVA-265, 2 to 5 parts of maleic anhydride, 0.2 to 0.5 part of dibenzoyl peroxide, 0.5 to 1 part of cross-linking agent, 0.5 to 1 part of hydroxyethyl methylacrylate, 8 to 15 parts of methyl methacrylate, 5 to 10 parts of methyl cyclohexane, 10 to 15 parts of cyclohexane, 20 to 25 parts of butanone, 10 to 15 parts of dimethyl carbonate, 20 to 25 parts of ethyl acetate, 0.1 to 0.3 part of anti-aging agent, 0.5 to 1 part of chlorinated polyethylene, 0.5 to 1 part of chlorinated rubber and 2 to 5 parts of butylated hydroxytoluene. The invention also discloses a preparation method of the EVA treating agent. The obtained EVA treating agent is good in yellowing resistance, good in weather resistance, free of roughing and irradiation, better in permeability and better in aging resistance.

Description

technical field [0001] The invention belongs to the technical field of processing preparations, in particular to an EVA treatment agent and a preparation method thereof. Background technique [0002] Ethylene-vinyl acetate copolymer, referred to as EVA, is a copolymer of ethylene and acetic acid. EVA is widely used in a wide range of applications, and the annual market consumption in my country is constantly increasing, especially in the shoe industry, where it is used in the soles and interior materials of mid-to-high-end travel shoes, hiking shoes, slippers, sandals. [0003] Most of the shoe soles currently on the market are made of EVA or rubber materials, the cost is relatively controllable, and the elasticity and flexibility can be adjusted according to needs, which has basically met people's requirements. During the shoe making process, the shoe material needs to be processed to improve the adhesion between the shoe material and the adhesive. However, since EVA is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/06C08L51/04C08L23/28C08L15/02C08K5/13C08F285/00C08F220/14C08F220/20
CPCC08L51/06C08F285/00C08L2201/08C08L51/04C08L23/286C08L15/02C08K5/13C08F220/14C08F220/20
Inventor 郭松华
Owner 佛山市高明大都化工有限公司
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