Rubber for sneaker sole and preparation method thereof

Abstract

The invention discloses rubber for a sneaker sole, and the rubber provided by the invention comprises the following components in parts by weight: 30-70 parts of butadiene rubber, 10-30 parts of natural rubber, 10-30 parts of bromobutyl rubber, 15-40 parts of carboxylated nitrile rubber, 2-5 parts of polyethylene glycol, 0.5-2 parts of stearic acid, 2-5 parts of zinc oxide, 1.5-2 parts of vulcanizer, 1.6-2.1 parts of accelerator, 0.5-2.0 parts of tackifier, 30-70 parts of white carbon black, 3-3.2 parts of coupling agent, 2-5 parts of softening oils, 1-3 parts of anti-aging agent and 0.5-1 part of paraffin. The invention further discloses a preparation method of the rubber. The rubber for the sneaker sole, provided by the invention, has incomparable slip prevention performance compared with the ordinary rubber shoe sole, and has multiple functions such as excellent wear resistance, bend resistance, and the like.

Description

technical field [0001] The invention relates to rubber for sports shoe soles, especially rubber for sports shoe soles, and a preparation method thereof. Background technique [0002] Due to its special purpose, sports shoes require the sole rubber to have wear resistance, anti-slip performance, and good folding resistance. However, the rubber used in current sports shoes is mainly formulated with isobutylene containing active bromine. -Isoprene copolymer elastomer is the main material. This kind of rubber sole is very unstable in the production process. At the same time, due to the large shrinkage of this material, the sheet is not smooth, and the thickness of the sheet is not easy to control; the sole rubber is in In the later vulcanization process, due to the strong air tightness, poor fluidity and large shrinkage of the material, factors such as color overflow are difficult to control, poor exhaust, etc., affect production efficiency and increase the defective rate. Alth...

AI Technical Summary

Problems solved by technology

[0002] Due to its special purpose, sports shoes require the sole rubber to have wear resistance, anti-slip performance, and good folding resistance. However, the rubber used in current sports shoes is mainly formulated with isobutylene containing active bromine. -Isoprene copolymer elastomer is the main material. This kind of rubber sole is very unstable in the production process. At the same time, due to the large shrinkage of this material, the sheet is not smooth, and the thickness of the sheet is not easy to control; the sole rubber is in In the later vulcanization process, due to the strong airtightness of the material, poor fluidity, and large shrinkage, factors such as color overflow are difficult to control, poor exhaust, etc., affect production efficiency and increase the defective rate

Although the sole rubber has a good performance in anti-slip performance, it has certain deficiencies in elasticity and wear resistance; the sole of the sports shoe is easy to slip during repeated bouncing and running, and the sole wears out quickly and loses its elasticity.