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Insole material of lightweight high-elasticity sports shoes and manufacturing method thereof

A technology for sports shoes and high elasticity, which is applied in soles, footwear, applications, etc., can solve the problems of unusable POE foam materials, insufficient bonding strength, and insufficient elasticity, and achieves light start, energy saving, high efficiency. The effect of elasticity

Inactive Publication Date: 2011-08-31
CHINA LEATHER & FOOTWEAR IND RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

EVA and EVA / PE foam materials have the advantages of light weight, warmth and comfort, and low cost, but these materials have the following disadvantages: (1) The density of EVA foam midsole is relatively high, generally 0.2-0.3g / cm 3 (2) The elasticity is not high enough. Generally, the elasticity of the foaming material of EVA and its mixture is 30% to 42%, while sports midsoles such as basketball and running require high elasticity (resilience greater than 50%). The above materials cannot fulfil requirements
[0005] Yet the POE foaming material that above-mentioned report provides can not be used as sports shoe midsole, and this is because according to the performance requirement of shoe midsole material, foaming material must have good adhesion
At present, the commonly used adhesives for bonding midsole and outsole are polar polyurethane, neoprene and other adhesives, while POE foam materials are non-polar materials, and polar adhesives are used together with rubber and plastic outsoles. Bottom bonding, the bonding strength is not high enough, and it is easy to open the glue

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The composition (mass ratio) is: 100 parts of POE-1, 10 parts of talc, 2.8 parts of AC, 3.0 parts of zinc oxide, 1.0 parts of zinc stearate, and 1.2 parts of crosslinking agent DCP.

[0035] Weigh according to the above ratio, use a mixer to pre-mix evenly, blend and granulate in an extruder, press on an open mill, and then mold and foam at 160 ° C to 175 ° C to obtain POE foam material. The performance test is performed after the sample is placed at room temperature at 22.0°C for a time greater than or equal to 24 hours. According to GB / T533-2008 test its density is 0.17g / cm 3 ;According to GB / T1681-1991 standard, its impact resilience rate is 67%; according to GB / T531.1-2008 standard, its Shore C hardness is 31; according to GB / T528-2009 standard, its tensile strength is 3.3MPa , The elongation at break is 544%. According to the GB / T529-2009 standard, the trouser tear strength is 4.3N / mm, and the right-angle tear strength is 9.2N / mm.

Embodiment 2

[0037] The composition (mass ratio) is: 100 parts of POE-2, 10 parts of talc, 2.8 parts of AC, 3.0 parts of zinc oxide, 1.0 parts of zinc stearate, and 1.2 parts of crosslinking agent DCP.

[0038] Weigh according to the above ratio, use a mixer to pre-mix evenly, blend and granulate in an extruder, press on an open mill, and then mold and foam at 160 ° C to 175 ° C to obtain POE foam material. The performance test is performed after the sample is placed at room temperature at 22.0°C for a time greater than or equal to 24 hours. According to GB / T533-2008 test its density is 0.20g / cm 3 ;According to GB / T1681-1991 standard, its impact rebound rate is 50%; according to GB / T531.1-2008 standard, its Shore C hardness is 57; according to GB / T528-2009 standard, its tensile strength is 5.0MPa , The elongation at break is 355%. According to the GB / T529-2009 standard, the trouser tear strength is 5.6N / mm, and the right-angle tear strength is 15.6N / mm.

Embodiment 3

[0040] The composition (mass ratio) is: 80 parts of POE, 20 parts of EAA, 10 parts of talc, 3.2 parts of AC, 3.0 parts of zinc oxide, 1.0 parts of zinc stearate, and 1.2 parts of crosslinking agent DCP.

[0041] Weigh according to the above ratio, use a mixer to pre-mix evenly, blend and granulate in an extruder, press on an open mill, and then mold and foam at 160 ° C to 175 ° C to obtain POE foam material. The performance test is performed after the sample is left at room temperature at 22.0°C for more than 24 hours. According to GB / T533-2008 test its density is 0.15g / cm 3;According to GB / T1681-1991 standard, its impact resilience rate is 55%; according to GB / T531.1-2008 standard, its Shore C hardness is 51; according to GB / T528-2009 standard, its tensile strength is 2.3MPa , The elongation at break is 245%; according to the GB / T529-2009 standard, the trouser tear strength is 3.1N / mm.

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Abstract

The invention relates to an insole material of lightweight high-elasticity sports shoes and a manufacturing method thereof, in particular to a method for manufacturing insoles of high and medium-grade sports shoes with high requirements on light weight and rebound elasticity. A series of foaming shoe insole materials with density of 0.15 to 0.20 g / cm<3> and impact resilience of 55 to 59 percent are manufactured by introducing an ethylene-polar monomer copolymer and natural rubber or ethylene propylene diene rubber on the basis of an ethylene-octylene copolymer. Compared with the conventional shoe insoles in the market, the prepared foaming material has lower density and higher elasticity. The insole material has the advantages that: high elasticity of the sole contributes to energy feedback and light start; and the sole density is low, so physical consumption of a user can be reduced, production cost can be obviously reduced and energy is saved.

Description

(1) Technical field [0001] The invention relates to a midsole material for sports shoes and a manufacturing method thereof, in particular to a midsole material for light and high-elastic sports shoes and a manufacturing method thereof. In particular, it is a thermoplastic elastomer foam sole material with ethylene-polar monomer copolymer and ethylene-octene copolymer as the matrix. This material is suitable for mid-to-high-end sports shoe soles that have high requirements for light weight and resilience. (2) Background technology [0002] With the development of the national fitness campaign, the sporting goods market is becoming more and more active. Sports shoes, as important sporting goods, are highly concerned by manufacturers and consumers for their wearing comfort. According to literature reports, for every 100 grams increase in the weight of sports shoes, the physical energy consumption of the wearer will increase by 1%. At the same time, the high elasticity of the...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/16C08L7/00C08L9/00C08K13/02C08K3/26C08K3/34C08K3/36C08K5/14C08J9/08C08J9/10A43B13/04
Inventor 常素芹钟宁庆
Owner CHINA LEATHER & FOOTWEAR IND RES INST
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