High-torsion-resistance foaming material and preparation method and application thereof

A foam material and high-resistance technology, applied in applications, soles, clothing, etc., can solve problems that affect consumers' wearing comfort, increase production costs, and increase specific weight, so as to improve sports experience, prevent sprains or sprains, low cost effect

Active Publication Date: 2019-08-27
ANTA CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned types of anti-twist parts can provide superior anti-twist protection, the hardness of these anti-twist parts is generally above 50D, and the density is greater than 1.0g / cm 3 , with large specificity and high hardness, which affects the wearing comfort of consumers
Moreover, configuring these anti-rotation components requires additional processes, which also increases production costs

Method used

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  • High-torsion-resistance foaming material and preparation method and application thereof
  • High-torsion-resistance foaming material and preparation method and application thereof
  • High-torsion-resistance foaming material and preparation method and application thereof

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preparation example Construction

[0052] The embodiment of the present invention provides the preparation method of the high-torsion-resistant foam material as described above, including the following steps: sequentially kneading and granulating the EVA composite material, and then foaming to obtain a high-torsion-resistant foam Material.

[0053] The technological process of the embodiment of the present invention is as figure 1 As shown, it mainly includes: weighing→mixing→granulation→foaming→baking. The embodiment of the present invention is grouped and weighed first: according to the dosage of the formula, the plastic main materials such as EVA / EPDM / OBC / special polyolefin elastomer can be weighed as the first group; stearic acid, zinc stearate, zinc oxide Weigh for the second group; weigh the DCP and blowing agent for the third group.

[0054] In the embodiment of the present invention, the weighed components are mixed: first, the first group of materials is poured into the internal mixer, and the machin...

Embodiment 1

[0064] Weighing: According to the dosage of the formula in Table 1, the main plastic materials such as EVA / EPDM / OBC / special polyolefin elastomer are weighed as the first group, and stearic acid, zinc stearate, and zinc oxide are weighed as the second group. Good; DCP and blowing agent are good for the third group.

[0065] Mixing: first pour the first group of materials into the internal mixer, and start the machine, when the temperature rises to 80-85 degrees, pour the first group of materials, and mix for 20 minutes; when the temperature rises to 90-95 degrees Pour in the second group of materials and knead for 5 minutes; when the temperature rises to 100-110 degrees, pour in the third group of materials, knead for 5 minutes, and pour out the mixed materials.

[0066] 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 degrees respectively. And, the screw spee...

Embodiment 2-20

[0071] According to the steps of Example 1, the formulations are shown in Table 1, Table 2, and Table 3, and high torsion-resistant foam materials were prepared respectively.

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Abstract

The nvention provides a high-torsion-resistance foaming material and a preparation method and application thereof. The material is prepared through forming of an EVA compound material. The EVA compound material comprises 30-60 parts of an ethylene-vinyl acetate copolymer, 20-50 parts of a special vinyl polyolefin elastomer, 8-12 parts of ethylene-propylene-diene monomer rubber, 8-12 parts of an ethylene octylene block copolymer, 0.5-0.8 part of a peroxide cross-linking agent, 1-5 parts of a foaming agent and 2-3 parts of an active agent, and the torsional rigidity of the special vinyl polyolefin elastomer is 9-25 MPa. The foaming material has excellent torsion resistance, mechanical properties and the like at relatively low density and hardness, and the torsional rigidity of the material can be improved by 50-200% compared with that of a common EVA foaming material. The material breaks through the limitation that torsion-resistant sheets need to be additionally arranged on traditionalanti-torsion sneakers, and the high-stability and protective motion requirements under medium-and-high-intensity motions are met.

Description

technical field [0001] The invention relates to the technical field of footwear products, in particular to a high torsion-resistant foam material, its preparation method and application. Background technique [0002] Nowadays, people have higher and higher requirements for the comfort of shoes. When buying shoes, customers like to pursue light weight, softness and other wearing comfort, but they tend to ignore the protective effect of shoes on feet during exercise. Generally speaking, the lighter and softer sports shoes are not enough to support the feet. After wearing for a long time, it is easy to cause the soles to be twisted and deformed, which increases the risk of sprained feet and easily leads to foot injuries or pathological changes. Because when the foot is subjected to strong impact or torsion during strenuous exercise, the front and rear soles of the foot may show different motion states. With the strengthening of the impact or torsion, when the soft tissues such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/16C08L53/00C08K13/02C08K5/14C08K3/22C08K5/09C08K5/098C08J9/10A43B13/04
CPCC08J9/103C08J9/0095C08J9/0066C08J9/0061C08J9/0023A43B13/04C08J2323/08C08J2423/08C08J2423/16C08J2453/00C08K13/02C08K5/14C08K2003/2296C08K5/09C08K5/098C08J2203/04
Inventor 刘成李忠德朱小平张贻兵成升良吴志诚柯育发
Owner ANTA CHINA
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