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Foaming material for shoes

A foaming material and foaming agent technology, applied in footwear, applications, clothing, etc., can solve the problems of severe water reaction, waste of raw materials, poor water resistance of polyurethane materials, etc., to achieve good elasticity and wear resistance, The effect of improving blending ability and excellent comprehensive performance

Inactive Publication Date: 2014-04-09
蔡龙源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current foaming materials for shoes still have certain shortcomings. The main foaming agent of polyurethane foaming materials is water, and the reaction of isocyanate monomers with water is violent and uncontrollable, and the water resistance of polyurethane materials is not good.
The hardness of pure EVA material is insufficient
In addition, the scraps of all shoe materials in the prior art cannot be used twice, resulting in a waste of raw materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Prepare the sole according to the following formula ratio:

[0066] EVA 7350 25 parts

[0067] PE150 25 parts

[0068] Elastomer 5171 20 parts

[0069] Calcium powder 5 parts

[0070] Foaming agent AC 2 parts

[0071] DCP cross-linking agent 0.45 parts

[0072] Zinc oxide mo 1 part

[0073] Stearic acid SA 0.4 parts

[0074] Masterbatch 1.5 parts

[0075] According to the ratio of raw materials, pour the raw materials into a 75L internal mixer, and banbury under high pressure at 6.5 kg until it becomes a thick solid of the same color. Put the thick solid into an open mill, and carry out open milling for 5 times until it becomes a cloth-like material, and then connect it to a tablet machine, roll it through the machine, and cut it with a knife to form a rectangular thick paper-like material. According to the required colors, put the cured raw materials into the 1600T vulcanizing machine in proportion. After 1 hour, the vulcanizing machine will automatically eject...

Embodiment 2

[0077] According to the method of embodiment 1, prepare shoe material according to the following ratio:

[0078] 20 copies of EVA;

[0079] PE 20 copies;

[0080] 15 parts of polyolefin elastomer;

[0081] 1 part calcium powder;

[0082] AC blowing agent 2 parts;

[0083] 0.1 part of DCP crosslinking agent;

[0084] 0.5 parts of zinc oxide;

[0085] 0.40 parts of stearic acid;

[0086] 1 part of red masterbatch;

[0087] Secondary use of leftovers 1 part.

[0088] The performance test of embodiment 2 is shown in table 2.

Embodiment 3

[0090] According to the method of embodiment 1, shoe material is prepared according to the following raw material ratio:

[0091] 30 copies of EVA;

[0092] PE 30 copies;

[0093] 25 parts of polyolefin elastomer;

[0094] 10 parts of calcium powder;

[0095] 5 parts of AC foaming agent;

[0096] 0.5 parts of DCP cross-linking agent;

[0097] 3 parts of zinc oxide;

[0098] 0.50 parts of stearic acid;

[0099] 2 parts of red masterbatch;

[0100] Secondary use of leftovers 5 parts.

[0101] After the preparation was completed, the test was carried out, and the test results are shown in Table 1.

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Abstract

The invention provides a foaming material for shoes. The foaming material comprises the following raw materials in parts by weight: 20-30 parts of ethylene-vinyl acetate copolymer, 20-30 parts of polyethylene, 15-25 parts of polyolefin elastomer, 1-10 parts of filler, 2-5 parts of foaming agent and 0.1-0.5 parts of cross-linking agent. The foaming material for the shoe provided by the invention has the characteristics of high elasticity, wear resistance, bacteria removal, odor removal and environmental friendliness, and leftover materials can be reutilized.

Description

technical field [0001] The invention relates to the field of shoe material and its preparation, in particular to a foam material for shoes. Background technique [0002] Foam material for shoes is the main material for the soles of sports shoes and casual shoes. It is recognized and loved by consumers because of its high resilience, high wear resistance, good weather resistance, and comfortable wearing. [0003] The current foam materials for shoes are generally divided into three categories, one is foamed polyvinyl chloride, which has been almost eliminated due to its large amount of harmful additives and harsh processing conditions, and the second is polyurethane shoes. The foam material is light, fast foaming, has good resilience, and has good wear resistance and temperature resistance after curing; the third is EVA (ethylene-vinyl acetate) elastomers, which have good transparency and elasticity. Odorless, it has good deodorizing, waterproof and sterilizing functions. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08J9/10C08K13/02A43B1/14
Inventor 蔡龙源
Owner 蔡龙源
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