Plastic foam for sport shoe sole

Abstract

The invention discloses a plastic foam for a sport shoe sole, which comprises the following components in part by weight: 70-74 parts of ethylene-vinyl acetate copolymer, 8-12 parts of ethylene-octylene copolymer, 6-10 parts of ethylene propylene ethylene-propylene-diene monomer, 8-12 parts of ethylene-acrylic acid copolymer, 8-9 parts of wear-resisting agent, 4-6 parts of filler, 1.0 -1.2 parts of zinc oxide, 0.5-0.6 part of stearic acid, 0.8-1.0 part of zinc stearate, 0.5-0.7 part of accelerate bridging agent, 0.8-0.9 part of bridging agent and 3.2-3.8 parts of foaming agent, wherein the ethylene propylene ethylene-propylene-diene monomeris a terpolymer of ethylene-propylene and non-conjugate diolefin. The plastic shoe sole of the sport shoe has the light weight performance, wear resistant performance and comfortable performance which are superior to those of a foam plastic formula injected by common IP, greatly reduces the physical consumption of athletes and has a plurality of performances such as durable comfort, durable buffer resistant performance and the like.

Description

technical field [0001] The invention relates to the technical field of plastics, in particular to foamed plastics for sports shoe soles. Background technique [0002] Due to its special-purpose nature, sports shoes need to be light, convenient and flexible. Existing ordinary IP injection foamed plastic sports shoes have a wear-resistant bottom but a correspondingly high density, thereby increasing the overall weight; at the same time, in order to meet certain wear-resistant requirements, the hardness is generally made higher. The main reason is that the material of the current sports shoe sole is a single material, which is unreasonable and cannot change the properties of the sole, resulting in many shortcomings: stiff material, high density, poor elasticity, poor wear resistance, sports In the process of repeated bouncing and running, the sole of the shoe quickly loses its elasticity, the cushioning performance becomes poor, and the wear is serious. At the same time, the a...

AI Technical Summary

Problems solved by technology

The existing ordinary IP injection foamed plastic sports shoes have a high wear resistance at the bottom but a correspondingly high density, thereby increasing the overall weight; at the same time, in order to meet certain wear resistance requirements, the hardness is generally made higher

The main reason is that the material of the current sports shoe soles is a single material, which is unreasonable and cannot change the properties of the soles, resulting in many shortcomings: stiff material, high density, poor elasticity, poor wear resistance, sports In the process of repeated bouncing and running, the sole of the shoe quickly loses its elasticity, the cushioning performance becomes poor, and the wear is serious. At the same time, the athlete's physical energy is consumed and the sports performance is reduced.

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