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Anti-deformation and high-supporting EVA (Ethylene Vinyl Acetate) foaming material as well as preparation method and application thereof

A foam material and anti-deformation technology, applied in applications, soles, clothing, etc., can solve problems such as poor comfort, anti-deformation ability and decreased support, and achieve reduced compression deformation, high support stability, and excellent The effect of resistance to deformation

Active Publication Date: 2019-06-14
ANTA CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing sports shoes of this type have excellent anti-deformation, anti-rollover, and high-support performances, they often have poor comfort
Soft comfort and high support and high stability are often difficult to balance. If the soft comfort is satisfied, the resistance to deformation and support of sports shoes will decrease, so they cannot be used as medium and high-strength sports shoes such as basketball and marathon.

Method used

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  • Anti-deformation and high-supporting EVA (Ethylene Vinyl Acetate) foaming material as well as preparation method and application thereof
  • Anti-deformation and high-supporting EVA (Ethylene Vinyl Acetate) foaming material as well as preparation method and application thereof
  • Anti-deformation and high-supporting EVA (Ethylene Vinyl Acetate) foaming material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0054] Embodiments of the present invention provide a method for preparing the anti-deformation high-support EVA foam material as described above, comprising the following steps:

[0055] The EVA composite material is sequentially mixed and granulated, and then foamed to obtain an anti-deformation high-support EVA foam material.

[0056] The process flow of the embodiment of the present invention mainly includes: weighing→mixing→granulation→foaming→baking. In the embodiment of the present invention, first group and weigh: according to the dosage of the formula, the main plastic materials such as EVA / POE / OBC / SEBS can be weighed as the first group, and the KEVLAR aramid fiber and silane coupling agent can be weighed as the second group. Stearic acid, zinc stearate, and zinc oxide are weighed as the third group; DCP and blowing agent are weighed as the fourth group.

[0057] In the embodiment of the present invention, the weighed components are mixed: first, the first group of m...

Embodiment 1

[0065] Weighing: According to the dosage of the formula in Table 1, the main plastic materials such as EVA / POE / OBC / SEBS are weighed as the first group, KEVLAR aramid fiber and silane coupling agent are weighed as the second group, stearic acid, Zinc stearate and zinc oxide are named for the third group; DCP and blowing agent are named for the fourth group.

[0066] Mixing: first pour the first group of materials into the internal mixer, and start the machine, when the temperature rises to 90-95 ° C, then pour the second group of materials; when the temperature rises to 95-100 ° C, pour The third group of materials; when the temperature rises to 100-110°C, pour in the fourth group of materials, and after mixing for 5 minutes, pour out the mixed materials.

[0067] Material making: Pour the mixed material into the material making machine, and adjust the temperature of the first, second, third, and fourth zones to 75, 80, 85, and 90°C respectively. And, the screw speed is adjust...

Embodiment 2-12

[0071] According to the steps of Example 1, the formulations are as shown in Table 1 and Table 2, respectively to prepare anti-deformation high-support EVA foam materials.

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Abstract

The invention provides an anti-deformation and high-supporting EVA (Ethylene Vinyl Acetate) foaming material as well as a preparation method and application thereof. The foaming material is prepared by foaming an EVA composite material; the EVA composite material is prepared from the following components in parts by weight: 40 to 50 parts of an ethylene vinyl acetate copolymer, 0.5 to 50 parts ofa block copolymer, 0 to 30 parts of a polyolefin elastomer, 0.5 to 15 parts of aramid fiber, 0.5 to 1 part of a crosslinking agent, 2.5 to 3 parts of a foaming agent, 1 to 2 parts of a coupling agentand 2 to 3 parts of an active agent; the block copolymer is one or more of an ethylene-octene block copolymer and a styrene series block copolymer; the mass content of a hard section in the block copolymer is 30 to 45 percent. The EVA foaming material provided by the invention has good softness and comfort, high supporting performance and high stability, and meets higher exercise requirements whenconsumers wear sports shoes.

Description

technical field [0001] The invention relates to the technical field of footwear product materials, in particular to a deformation-resistant high-support EVA foam material and a preparation method and application thereof. Background technique [0002] Sports shoe soles usually consist of outsoles and midsoles. The outsole refers to the layer structure that is in direct contact with the ground. It is usually made of natural rubber or artificial rubber and has the functions of anti-slip, wear-resistant and bending-resistant. The midsole generally refers to the structure between the insole and the outsole, which mainly plays the role of support or rebound. At present, the midsole is mainly made of thermoplastic elastomer materials such as ethylene vinyl acetate copolymer (EVA), styrene-based thermoplastic elastomer (SBS), ethylene octene block copolymer (OBC), and thermoplastic polyurethane (TPU). foam structure. [0003] As we all know, as the intensity of exercise increases,...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L77/10C08L53/00C08L53/02C08K13/02C08K3/22C08K5/09C08K5/098C08K3/04C08J9/10C08J3/24A43B13/04
Inventor 朱小平张冲李忠德欧阳继承成升良柯育发吴志诚
Owner ANTA CHINA
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