Environmental-friendly foamed insole material, and preparation method thereof

An environmentally friendly and brewing technology, applied in shoe soles, applications, clothing, etc., can solve the problems of white pollution, high degree of polymerization, and difficulty in breaking and decomposing polymer chains, and achieve the effect of reducing emissions and reducing use.

Inactive Publication Date: 2019-05-31
ANTA CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, these plastic products are all high polymers. Due to the high degree of polymerization and strong intermolecular forces, the polymer chains are difficult to break and decompose, so they are not degradable, and a large number of plastic products are discarded to form "white pollution".

Method used

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  • Environmental-friendly foamed insole material, and preparation method thereof
  • Environmental-friendly foamed insole material, and preparation method thereof
  • Environmental-friendly foamed insole material, and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0050] Embodiments of the present invention provide a method for preparing an environmentally friendly foam midsole material as described above, comprising the following steps:

[0051] The EVA composite material is sequentially mixed and granulated, and then foamed to obtain an environmentally friendly foam midsole material.

[0052] 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 / EPDM / PLA / PBAT are weighed as the first group, and the plant fiber powder is 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.

[0053] In the embodiment of the present invention, the weighed components are mixed: first, pour the first group of materials into the internal mix...

Embodiment 1

[0060] Weighing: According to the dosage of the formula in Table 1, the main plastic materials such as EVA / POE / EPDM / PLA / PBAT are weighed as the first group, and the plant fiber powder is weighed as the second group. Stearic acid, zinc stearate , Zinc oxide is called the third group; DCP and foaming agent are called the fourth group.

[0061] Mixing: first pour the first group of materials into the internal mixer, and start the machine, when the temperature rises to 80-85 ° C, then pour the second group of materials; when the temperature rises to 90-95 ° 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.

[0062] 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 adjusted to 40-50 rpm, and the ...

Embodiment 2-6

[0066] According to the steps of Example 1, the formulations are shown in Table 1, and environmentally friendly foam midsole materials were prepared respectively.

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Abstract

The invention provides an environmental-friendly foamed insole material, and a preparation method thereof. The environmental-friendly foamed insole material is prepared from an EVA composite materialthrough foaming; the EVA composite material comprises, by weight, 30 to 40 parts of ethylene-vinyl acetate copolymer, 10 to 35 parts of biological Ethylene-Propylene-Diene Monomer, 10 to 20 parts of adegradable resin, 0 to 20 parts of polyolefin elastomer, 10 to 20 parts of plant fiber powder, 0.5 to 0.8 part of a cross-linking agent, 2.5 to 3 parts of a foaming agent, and 2.5 to 3.5 parts of anactivator. The degradable resin is one or a mixture of a plurality of components selected from poly (butyleneadipate-co-terephthalate and polylactic acid. The environmental-friendly foamed insole material is degradable, is high in biomass content, is excellent in performance. The preparation method is capable of recycling waste resource, and reducing using of non-renewable petroleum resources; thedegradable part is capable of reducing carbon dioxide emission; and energy saving and carbon emission environmental protection effect is achieved.

Description

technical field [0001] The invention relates to the technical field of footwear product materials, in particular to an environmentally friendly foam midsole material and a preparation method 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 soles of sports shoes are basically foamed from petrochemical products, such as ethylene vinyl acetate copolymer (EVA), polyolefin elastomer (POE), ethylene propylene diene monomer (EPDM), ethylene octene block copolymer (OBC), styrene-based block copolymer (SEBS), polyethylene (PE), butadiene rubber (BR), styrene-butadiene rubber...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/16C08L67/02C08L67/04C08L97/02C08K5/09C08K5/098C08K3/22C08K5/14C08K13/02C08J9/10A43B13/04
Inventor 陈爱民李忠德朱小平彭康成升良柯育发吴志诚
Owner ANTA CHINA
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