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Ultrahigh wear-resistant thermoplastic elastomer material for shoe-sole

A thermoplastic rubber and shoe sole material technology, applied in the field of shoe sole materials, can solve the problems of general wear resistance, many processing procedures, and difficulty in meeting wear resistance requirements, and achieve the effects of improving wear resistance, reducing production costs and protecting the environment.

Inactive Publication Date: 2003-11-12
FUJIAN HONGWEI SHOES PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Materials suitable for shoe soles include rubber, thermoplastic elastomers, plastics, etc. Among them, shoe soles made of rubber materials have the advantages of excellent wear resistance and good elastic recovery. However, there are many processing procedures and the waste generated cannot be recycled; thermoplastic elastomers It has the advantages of convenient processing, simple process, and recyclable waste. Therefore, thermoplastic rubber (TPR) shoe sole materials with styrene-butadiene-styrene block copolymer (SBS) as the main material are widely used. The abrasive performance is average, and sometimes it is difficult to meet the wear-resistant requirements under specific conditions; polyurethane materials have excellent elasticity and good wear-resistant performance, but their disadvantages are that their prices are relatively high and the process control requirements are strict

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] According to the following components and content (mass ratio):

[0027] SBS 100

[0028] PS 16

[0029] Calcium carbonate 25

[0030] Silica 15

[0031] naphthenic oil 27

[0032] UHMWPE 13

[0033] Zinc stearate 0.5

[0034] Antioxidant 1076 0.3

[0035] Light stabilizer (UVA-6) 0.15

[0036] AC blowing agent 0.5

[0037] Weigh the materials according to the above ratio, use a mixer to pre-mix evenly, then blend in an internal mixer or a screw extruder, set the temperature at 100°C, granulate, dry, and then use an injection molding machine to inject the sole. The wear resistance of the obtained product reaches 6.8 mm, and the hardness reaches 62 (Shore A).

Embodiment 2

[0039] According to the following components and content (mass ratio):

[0040] SBS 100

[0041] ps 5

[0042] calcium carbonate 10

[0043] Kaolin 5

[0044] naphthenic oil 25

[0045] UHMWPE 25

[0046] Zinc stearate 1.5

[0047] Heat Stabilizer 1010 5

[0048] AC blowing agent 1.5

[0049] Weigh the materials according to the above ratio, use a mixer to pre-mix evenly, then blend in an internal mixer or a screw extruder, set the temperature at 140°C, granulate, dry, and then use an injection molding machine to inject the sole. The wear resistance of the obtained product reaches 6.2 mm, and the hardness reaches 64 (Shore A). Different toners can be added to the material to prepare soles of various desired colors.

Embodiment 3～5

[0051] The components and contents of the required raw materials are shown in Table 1. Its manufacturing process is similar to that of Examples 1 and 2, and the required temperature can be set at 100-140°C.

[0052] Different toners can be added to the material to prepare soles of various colors (including bottom flowers, sole sidewalls and outsoles).

[0053] raw material

[0054] The invention has the advantages that the wear resistance of the material is obviously improved compared with the common TPR sole material, and the price is obviously lower than that of rubber and polyurethane materials.

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PUM

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Abstract

The present invention relates to a sole material, in particular it is a thermoplastic rubber sole material to which a high-molecular wear-resisting modifier ultrahigh molecular weight polyethylene is added, its composition comprises SBS, PS, filler, softening oil, UHMWPE, demoulding agent, antioxidant, thermal stabilizing agent, light stabilizer and foaming agent. On the basis of SBS, PS, softening oil, filler and colour powder a high-molecular wear-resisting modifier ultrahigh molecular weight polyethylene (UHMWPE) is added, its molecular chain has carbon-carbon long-chain structure, and its number-average molecular weight is 1000000-8000000. In the mixture formula other components and contents are regulated, so that the abrasion-resistance of the sole can be greatly raised (the length of abrasive crack is less than 7 mm).

Description

(1) Technical field [0001] The invention relates to a shoe sole material, in particular to a thermoplastic rubber shoe sole material added with a polymer anti-wear modifier ultra-high molecular weight polyethylene. (2) Background technology [0002] Materials suitable for shoe soles include rubber, thermoplastic elastomers, plastics, etc. Among them, shoe soles made of rubber materials have the advantages of excellent wear resistance and good elastic recovery. However, there are many processing procedures and the waste generated cannot be recycled; thermoplastic elastomers It has the advantages of convenient processing, simple process, and recyclable waste. Therefore, thermoplastic rubber (TPR) shoe sole materials with styrene-butadiene-styrene block copolymer (SBS) as the main material are widely used. The wear performance is average, and sometimes it is difficult to meet the wear resistance requirements under specific conditions; polyurethane materials have excellent elast...

Claims

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Application Information

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IPC IPC(8): A43B13/04C08L53/02
Inventor 阳范文
Owner FUJIAN HONGWEI SHOES PLASTIC CO LTD
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