A kind of light weight high elastic EVA sole and preparation method thereof

Abstract

The invention relates to the technical field of high-molecular compounds, and provides a lightweight high-elasticity EVA shoe sole and a preparation method thereof. The lightweight high-elasticity EVA shoe sole is prepared by the steps of performing internal mixing, open milling and pelleting on the materials of EVA, polyolefin segmented copolymer, ethylene propylene diene monomer, chlorinated polyethylene, a foaming agent, a cross-linking agent, zinc stearate, stearic acid, an abrasion-resistant agent and talcum powder, so as to obtain lightweight high-elasticity pellets, and performing injection molding at one time to obtain the lightweight high-elasticity EVA shoe sole. The lightweight high-elasticity EVA shoe sole provided by the invention has the characteristics that the resilience is high, the dimensional stability is high, the compression deformation rate is low, the surface is not easy to wrinkle, the weight is light, the comprehensive performance is good, the product percent of pass is high, and in addition, the EVA shoe sole is lighter in weight and is particularly suitable for production of top-grade EVA sport shoes and casual shoes.

Description

technical field [0001] The invention belongs to the technical field of organic polymer compounds, and in particular relates to a lightweight high-elasticity EVA shoe sole and a preparation method thereof. Background technique [0002] Shoes are the necessities of life that everyone cannot do without. For the sake of comfort, people prefer to choose lighter shoes and boots in life. For those who love sports, lightweight shoes will consume less energy for the wearer and improve their sports performance and wearing comfort without reducing their functionality. The process of lightweighting may only reduce a few grams, which may seem insignificant. For athletes, especially football players, weight can be equal to speed, which will bring huge changes to athletes. [0003] In the molecular chain of the polyolefin block copolymer, the hard segment and the soft segment are alternately arranged, and the frequency of the alternate arrangement is fixed, and the molecular length is als...

AI Technical Summary

Problems solved by technology

Compared with EVA, polyolefin block copolymer has increased elasticity, higher heat resistance, improved compression set, light weight, and less sensory stimulation, but it also has the same defects as EVA: high surface crystallization rate, and skin is easy to wrinkle And other issues

The patents CN103992609 A and CN 103992610 A of Quanzhou Sansheng Rubber and Plastic Foaming Shoe Material Co., Ltd. disclose olefin block copolymer foaming materials and their preparation methods, which have high flexibility, good heat resistance, elastic recovery and compression Foam materials with excellent deformation properties, etc., but this foam material is not suitable for shoe materials, because the polarity of olefin block copolymers is small, it is difficult to bond with shoe uppers and shoe accessories, which brings great difficulties to the shoe molding process ; Raw materials are expensive and production costs are high; the grip is poor; the surface of the product is easy to wrinkle, which affects the appearance