Novel formula of modified foamed ethylene-vinyl acetate (EVA) plastic

A plastic and modified technology, applied in the formulation field of new modified foamed EVA plastics, can solve the problems of shrinkage and compression deformation, severe product wear, etc., to increase wear resistance, reduce production costs, and improve mechanical strength. Effect

Inactive Publication Date: 2012-12-05
SUZHOU XINGWU ENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally, injection EVA products have shortcomings such as serious shrinkage and compression deformation, which have great obstacles and

Method used

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Embodiment Construction

[0009] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0010] Described in the present invention is a kind of formula of novel modified foaming EVA plastics, comprises EVA plastics and additive, and described additive comprises wear-resisting agent, toughening agent, compatibilizer, blowing agent, coupling agent and crosslinking agent agent, the anti-wear agent is silicon nitride, the toughening agent is chlorinated polyethylene, the compatibilizer is maleic anhydride graft, the foaming agent is diisopropyl azodicarboxylate, and the coupling agent is mercapto Propyltrimethoxysilane, the crosslinking agent is triethylenetetramine.

[0011] Further, the weight ratio range of each component in the formula of the new modified foamed EVA plastic is that ...

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PUM

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Abstract

The invention discloses a novel formula of modified foamed ethylene-vinyl acetate (EVA) plastic. The modified foamed EVA plastic comprises EVA plastic and additives, wherein the additives comprise silicon nitride serving as a wear-resistant agent, chlorinated polyethylene serving as a toughening agent, maleic anhydride graft serving as a compatilizer, diisopropyl azodicarboxylate serving as a foaming agent, mercaptopropyl triethoxysilane serving as a coupling agent and triethylenetetramine serving as a cross-linking agent. By the foaming agent, the EVA plastic can become soft; by the wear-resistant agent, the wear resistance of the product can be improved, and the product is difficult to damage; by the toughening agent, the mechanical strength of the product can be improved; and by the compatilizer, the coupling agent and the cross-linking agent, the internal molecular structure of the product can be tightly combined, the reaction rate in the production process is improved, and production cost is reduced.

Description

technical field [0001] The invention relates to a plastic formula, in particular to a novel modified foamed EVA plastic formula. Background technique [0002] Injection ethylene vinyl acetate copolymer (referred to as EVA) is a product obtained by plasticizing, granulating, and melting EVA raw materials at high temperature, injecting it into a mold through a pipeline, and then foaming outside the mold. The sole of general sports shoes is composed of foam midsole and wear-resistant rubber outsole. Since ethylene-vinyl acetate copolymer (EVA) has good plasticity, elasticity and processability, the foamed material has low density and good mechanical properties. Good, easy coloring and other advantages. At present, most sports shoes are made of EVA foam material in the middle or sole. [0003] Generally, injection EVA products have shortcomings such as serious shrinkage and compression deformation, which have great obstacles and limitations to subsequent production and use, an...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L31/04C08L23/28C08L51/00C08K13/02C08K3/34C08K5/00C08K5/548C08K5/17C08J9/10
Inventor 荣群山
Owner SUZHOU XINGWU ENG PLASTIC
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