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Lightweight, extremely-elastic and fatigue-resistant foam material and preparation method thereof

A foaming material and fatigue technology, applied in the field of lightweight extremely elastic and fatigue-resistant foaming materials and their preparation, can solve problems such as difficulties

Active Publication Date: 2020-09-18
ANTA CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, from a technical point of view, it is difficult for a material to be lighter, more durable, more wear-resistant, and have better resilience and stronger energy feedback, because these properties seem to be contradictory

Method used

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  • Lightweight, extremely-elastic and fatigue-resistant foam material and preparation method thereof
  • Lightweight, extremely-elastic and fatigue-resistant foam material and preparation method thereof
  • Lightweight, extremely-elastic and fatigue-resistant foam material and preparation method thereof

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preparation example Construction

[0047] The present invention provides a method for preparing a lightweight, extremely elastic and fatigue-resistant foaming material described in the above technical solution, comprising the following steps:

[0048] Mix ethylene-vinyl acetate copolymer, ethylene-octene random copolymer, SEBS and ethylene-methacrylic acid copolymer first, then add zinc oxide, stearic acid, zinc stearate and Vinyl silicone oil wear-resistant agent, then heat up to 85-95°C, add peroxide cross-linking agent and foaming agent, and wait until the temperature is raised to 100-105°C to obtain a mixture;

[0049] Granulating the mixed material to obtain pellets;

[0050] Vulcanize and foam the pellets at 172-178°C for 655-665 seconds to obtain a semi-finished product;

[0051] The semi-finished product is left to cool for 22-25 hours, then hot-pressed at 170-180° C. for 410-430 seconds, the compression ratio during hot-pressing is 1.5-1.6, and cooled to obtain a lightweight, extremely elastic and fat...

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Abstract

The invention provides a lightweight, extremely-elastic and fatigue-resistant foam material and a preparation method thereof. The foam material comprises 40-60 parts of EVA, 20-40 parts of POE, 5-20 parts of SEBS, 0-20 parts of an ethylene-methacrylic acid copolymer, 4-10 parts of a vinyl silicone oil wear-resistant agent, 0.5-0.7 part of a peroxide cross-linking agent, 3-4 parts of a foaming agent, 1 part of zinc oxide, 0.8 part of stearic acid and 1 part of zinc stearate. A polymer with high melt strength, a polymer with high molecular chain flexibility and a wear-resistant agent with a cross-linkable structure are introduced into the EVA, and the polymer with high melt strength improves the mechanical properties and fatigue resistance of the foam material and guarantees normal foaming of the material at a high rate; the resilience is improved by the macromolecular chain flexible polymer; and the wear-resistant agent improves the wear resistance, reduces the influence of the wear-resistant agent on the permanent compression deformation of the material, and reduces the thermal shrinkage of foaming through secondary compression molding, thereby obtaining the lightweight high-elasticity foaming material with favorable wear resistance and fatigue resistance.

Description

technical field [0001] The invention belongs to the technical field of foaming materials, and in particular relates to a lightweight, extremely elastic and fatigue-resistant foaming material and a preparation method thereof. Background technique [0002] In recent years, with the popularity of NBA, CBA, CUBA and other various basketball games, more and more people love basketball, and at the same time have higher and higher requirements for basketball shoes. However, basketball shoes are different from ordinary sports shoes. Basketball shoes need to have better durability, support, stability, flexibility and good shock absorption. High resilience is the primary requirement of consumers for basketball sneakers. The higher the rebound, the quicker the response when the foot leaves the ground during exercise, and more energy feedback can be given to the soles of the feet, which can convert more of the athlete's kicking force into Strong power and bounce. Secondly, consumers a...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L53/02C08L83/07C08K13/02C08K3/22C08K5/09C08K5/098C08K5/14C08J9/10
CPCC08J9/103C08J9/0095C08J9/0066C08J9/0061C08J9/0023C08J2323/08C08J2423/08C08J2453/02C08J2483/07C08K13/02C08K2003/2296C08K5/09C08K5/098C08K5/14C08J2203/04
Inventor 朱小平张冲李忠德欧阳继承成升良吴志诚李静婷
Owner ANTA CHINA
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