Rubber for sports shoe soles and preparation method thereof

Abstract

The invention discloses rubber for sports shoe soles. The rubber for the sports shoe soles comprises the following components in parts by mass: 30-70 parts of butadiene rubber, 20-40 parts of naturalrubber, 15-30 parts of brominated butyl rubber, 10-20 parts of solution-polymerized styrene-butadiene rubber, 5-10 parts of glass fiber, 2-5 parts of polyethylene glycol, 0.5-2 parts of zinc stearate,2-5 parts of zinc oxide powder, 2.5-4 parts of a vulcanizing agent, 1.5-2.5 parts of an accelerator, 30-50 parts of white carbon black, 3-4.5 parts of a silane coupling agent, 4-7 parts of a homogenizing agent, 2-5 parts of softening oil, 1-3 parts of an anti-aging agent and 0.5-1 part of paraffin. The invention further provides a preparation method of the rubber for the sports shoe soles. Rubbershoe soles for sports shoes, prepared according to the technical scheme adopted by the invention, have many properties such as super wear resistance, good folding resistance and anti-slip performance; the preparation method is simple in production process and is suitable for wide application.

Description

technical field [0001] The invention relates to the field of materials, in particular to a rubber for sports shoe soles and a preparation method thereof. Background technique [0002] Due to its special purpose, sports shoes require its sole rubber to have wear resistance, anti-slip performance and good folding resistance. With the continuous improvement of people's living standards and sports competition level, light and comfortable shoes have become the mainstream. Anti-slip is one of the important functions of sole, and the quality of anti-slip property is one of important factors directly affecting the service life of shoes, and is also a key factor that safety and comfort can be guaranteed. The density of ordinary shoe-making rubber is such that the dry anti-slip coefficient is greater than 0.6, and the wet anti-slip coefficient is greater than 0.3. The sole is relatively heavy, the anti-slip effect is average, and the softness is not good. When the soles of sports sh...

AI Technical Summary

Problems solved by technology

The density of ordinary shoe-making rubber is that the dry anti-slip coefficient is greater than 0.6, and the wet anti-slip coefficient is greater than 0.3. The sole is relatively heavy, the anti-slip effect is average, and the softness is not good.

When the soles of sports shoes are in contact with wet and smooth ground or ground with ice attached, ice water will adhere to the surface of the soles to form a water film, which may easily cause users to slip and fall

The rubber used in the soles of sports shoes at present is mainly based on the isobutylene-isoprene copolymer elastomer containing active bromine. Although the sole rubber prepared by this method has certain anti-slip properties, it still has Many deficiencies, such as poor elasticity and weather resistance, sports soles are prone to slipping during repeated bouncing and running, and the soles wear out quickly and lose their elasticity.

Therefore, existing rubber for sole of sports shoes and preparation method thereof still need to be further improved

Images