Coarse composite foaming material for sneaker soles as well as preparation method and application of coarse composite foaming material

A technology of composite foaming and sports shoes, which is applied in the field of footwear materials, can solve the problems of functional properties that need to be improved, and achieve the effects of reducing physical energy consumption, excellent resilience, excellent resilience and compression resistance

Active Publication Date: 2019-04-26
ANTA CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of reducing the specific gravity, it is difficult for the open-cell foam of traditional expandable materials to achieve excellent functional properties such as resilience and compression resistance, and application properties such as functional physical properties need to be improved

Method used

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  • Coarse composite foaming material for sneaker soles as well as preparation method and application of coarse composite foaming material
  • Coarse composite foaming material for sneaker soles as well as preparation method and application of coarse composite foaming material
  • Coarse composite foaming material for sneaker soles as well as preparation method and application of coarse composite foaming material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0062] Correspondingly, an embodiment of the present invention provides a method for preparing a coarse-cell composite foam material for sports shoes as described above, including the following steps:

[0063] The expandable elastomer composite material is sequentially kneaded and granulated, and then foamed, and the foaming is IP injection foaming and / or small foaming to obtain a coarse-pore composite foaming material for sports shoes.

Embodiment 1

[0073] 1) Weigh the following components by mass parts: polyolefin elastomer Engage8003 17PHR, ethylene vinyl acetate copolymer EVA7470M / EVA40L-03 (the mass ratio of the two is 60 / 40) 45PHR, olefin block copolymer OBC9107 33PHR, polyethylene N -150 5phr.

[0074] 2) Put all the ingredients weighed in step 1) into the Lena machine in order for mixing. The mixing time is 8-10 minutes and the temperature is 110-115°C.

[0075] 3) Weigh the following components by mass parts: high transparent calcium 5PHR, stearic acid 1842 0.5PHR, odorless crosslinking agent 14S-F1 0.75PHR, Poly Foam foaming agent 3.8PHR.

[0076] 4) Add all the ingredients weighed in step 3) to the mixed material in step 2), and use a twin-screw extruder to mix again. The mixing time is 5-7 minutes and the temperature is 115-118 ° C.

[0077] 5) The mixture obtained in step 4) is granulated with a granulator, the granulation time is 9-11 minutes, and the temperature is 110°C-120°C.

[0078] 6) Foaming the mixt...

Embodiment 2

[0080] Corresponding to Example 1, the only difference is that step 6) conducts small foaming for 550-600 seconds at a foaming temperature of 150°C-160°C to obtain a coarse-cell composite foaming material for sports shoe soles.

[0081] Carry out electron microscope test to described foam composite material, the result sees figure 1 with figure 2 , figure 1 It is a scanning electron micrograph of the foamed composite material obtained in Example 1 of the present invention at a magnification of 5 mm × 3.1, figure 2 is a ZEISS scanning electron micrograph (200 μm). It can be seen from the figure that the foamed composite material has a coarse-pored and open-celled spherical cell structure with a pore diameter of 0.2-1.0 mm. In addition, the cell structure of the products prepared by the two processes of IP foaming and small foaming is the same.

[0082] Figure 3-5 It is a physical photo of the foamed composite material used as the sole, image 3 It is the magnification ...

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Abstract

The invention provides a coarse composite foaming material for sneaker soles as well as a preparation method and application of the coarse composite foaming material. The material is prepared by foaming an expandable elastomer composite material, wherein the expandable elastomer composite material is prepared from the following components in parts by mass: 15 to 25 parts of a polyolefin elastomer,20 to 45 parts of an ethylene vinyl acetate copolymer, 15 to 35 parts of an olefin block copolymer, 5 to 10 parts of polyethylene, 2 to 8 parts of calcium carbonate, 0.6 to 1.5 parts of nano active zinc oxide, 0.5 to 0.8 part of a stearic acid, 0.5 to 0.8 part of a cross-linking agent and 3 to 5 parts of a coarse foaming agent. The coarse composite foaming material for the sneaker soles has an open spherical foam structure. The coarse composite foaming material provided by the application has the advantages of excellent rebound performance, compression resistance, lower density, capability ofachieving high light transmission, unique appearance effects and facilitation for producing high-quality sneaker soles.

Description

technical field [0001] The invention relates to the technical field of shoe product materials, in particular to a coarse-pore composite foaming material for sports shoe soles, a preparation method and application 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 shock absorption or rebound. At present, the midsole is mainly made of thermoplastic elastomer materials such as ethylene vinyl acetate copolymer (EVA), styrene-based thermoplastic elastomer (SBS), ethylene octene block copolymer (OBC), and thermoplastic polyurethane (TPU). foam structure. [0003] The foam materials used in sports shoe soles ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/00C08L53/00C08L23/06C08K5/09C08J9/04A43B13/04
CPCA43B13/04C08J9/04C08J2323/08C08J2423/00C08J2453/00C08K5/09
Inventor 廖淑琼吴志诚党明江黄金勇何培灿
Owner ANTA CHINA
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