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Flame-retardant EVA shoe material for leisure shoes and preparation method thereof

A technology for casual shoes and shoe materials, applied in footwear, applications, clothing and other directions, can solve problems such as obvious flammability and large fire hazards, achieve good flame retardant and smoke suppression effects, reduce total smoke generation, and improve physical performance effect

Active Publication Date: 2021-12-03
莆田永生鞋业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flammability of EVA is obvious, and the fire hazard is great, so it is very necessary to carry out flame retardant treatment

Method used

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  • Flame-retardant EVA shoe material for leisure shoes and preparation method thereof
  • Flame-retardant EVA shoe material for leisure shoes and preparation method thereof
  • Flame-retardant EVA shoe material for leisure shoes and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The weight ratio of components in Preparation Examples 7-11 of a modified polyurethane elastomer is shown in Table 2.

[0037] Concrete components and weight of table 2 preparation example 7-11

[0038]

[0039] Table 3 shows the weight ratio of components in Examples 1-8 of a flame-retardant EVA shoe material used for casual shoes.

[0040] Concrete component and weight of table 3 embodiment 1-8

[0041]

preparation example 1

[0044]A preparation method of urea-modified kaolin, comprising the following steps: the mass ratio of kaolin and urea solution is 1:2; taking a certain amount of kaolin and 70% mass concentration of urea solution in proportion, and adopting mechanical stirring and ultrasonic-assisted modification method, at 50°C, react for 3 hours, after stirring and ultrasonic treatment, filter the mixture under reduced pressure, wash the modified product with absolute ethanol 6 times, dry at 100°C for 12 hours, crush, and sieve to obtain Urea modified kaolin.

preparation example 2

[0046] A method for preparing urea-modified kaolin differs from Preparation Example 1 in that: Preparation Example 2 has a urea solution with a mass concentration of 75%, and reacts at 60° C. for 4.5 hours.

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Abstract

The invention relates to the technical field of high polymer materials, and particularly discloses a flame-retardant EVA shoe material for leisure shoes and a preparation method thereof.The flame-retardant EVA shoe material for the leisure shoes is prepared from, by weight, 65-75 parts of EVA, 65-75 parts of modified polyurethane elastomer, 20-30 parts of white carbon black, 6-8 parts of foaming agent, 1-1.2 parts of cross-linking agent, 0.4-0.8 part of zinc oxide and 0.6-1.0 part of stearic acid; the modified polyurethane elastomer is prepared from 10 to 15 parts of polyether polyol I, 65 to 75 parts of a component A, 20 to 65 parts of a component B, 0.2 to 4 parts of a catalyst, 2 to 15 parts of ethylene glycol, 0.2 to 4 parts of water and 0.2 to 2 parts of a foam stabilizer; the component A comprises urea modified kaolin and polyether polyol II, and the weight ratio of the urea modified kaolin to the polyether polyol II in the component A is 4: 1; the component B comprises polyether polyol III and isocyanate, and the weight ratio of the polyether polyol III to the isocyanate in the component B is 1: 2; the flame-retardant EVA shoe material for the leisure shoes has excellent flame retardance and smoke suppression performance.

Description

technical field [0001] The application relates to the technical field of polymer materials, more specifically, it relates to a flame-retardant EVA shoe material for casual shoes and a preparation method thereof. Background technique [0002] EVA is a polymer material formed by copolymerization of ethylene and vinyl acetate in different proportions. EVA has excellent mechanical properties such as flexibility and impact resistance, and is easy to process and shape. It is widely used in the midsole of various shoes such as sports shoes, casual shoes, and dance shoes. However, the flammability of EVA is obvious, and the fire hazard is great, so it is very necessary to carry out flame retardant treatment. Contents of the invention [0003] In order to improve the flame-retardant effect of EVA, the present application provides a flame-retardant EVA shoe material for casual shoes and a preparation method thereof. [0004] In the first aspect, the application provides a flame-re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/10C08L23/08C08L75/08C08K3/34C08K7/26C08G18/10C08G18/48A43B1/14
CPCC08J9/103C08J9/0066C08J9/009C08J9/0095C08J9/0061C08G18/10C08G18/4829A43B1/14C08J2323/08C08J2423/08C08J2375/08C08J2475/08C08J2203/04C08G18/48
Inventor 蔡必拓蔡纪宁郑华阳
Owner 莆田永生鞋业有限公司
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