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Foam material for shoes as well as preparation method and application thereof

A technology for foam materials and shoes is applied in the field of foam materials for shoes, and can solve the problems of reduced material properties, mechanical properties such as the resistance to compression deformation of microcellular foam soles, etc. to be improved, etc., and achieves high resilience and good wearability. and running experience, the effect of high tensile strength

Active Publication Date: 2021-12-07
ANTA CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, after foaming, there is often a reduction in material properties, such as the mechanical properties of the above-mentioned microcellular foamed shoe soles, such as compression deformation resistance, which need to be improved

Method used

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  • Foam material for shoes as well as preparation method and application thereof
  • Foam material for shoes as well as preparation method and application thereof
  • Foam material for shoes as well as preparation method and application thereof

Examples

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preparation example Construction

[0048] Embodiments of the present invention provide a method for preparing a foam material for shoes as described above, comprising the following steps:

[0049] Mixing and injection molding each component in the nylon elastomer composite material to obtain a nylon elastomer composite material;

[0050] The nylon elastomer composite material is impregnated to equilibrium in a high-pressure fluid atmosphere, then quickly released, dried and aged to obtain a foam material for shoes.

[0051] In the embodiment of the present invention, each component in the nylon elastomer composite material is weighed in parts by weight; the weighed nylon elastomer composite material is mixed and injected. Specifically, the present invention preferably adds the nylon elastomer composite material into the barrel of a twin-screw extruder after drying, stirring and mixing, melts and kneads, and injects it into a mold with a midsole shape to obtain a midsole-shaped composite material. Bottom-shaped...

Embodiment 1

[0059] In an embodiment of the present invention, the nylon elastomer composite material includes the following components in parts by mass:

[0060] Nylon elastomer: 100 parts;

[0061] Antioxidant: 0.2 parts;

[0062] Nano nucleating agent: 3 parts;

[0063] Stearic acid: 0.5 parts;

[0064] Cell stabilizer: 0.3 part;

[0065] Wherein, the antioxidant is AT-10; the nano-nucleating agent is nano-titanium dioxide; the cell stabilizer is polyisobutyl methacrylate.

[0066] After drying, stirring and mixing the weighed above components, put them into the barrel of the twin-screw extruder for melting and kneading, and inject them into the midsole-shaped mold to obtain the midsole-shaped nylon elastomer composite sheet materials; among them, the barrel temperature is 240°C, the mold temperature is 40°C, the injection pressure is 780bar, and the holding pressure is 350bar.

[0067] The obtained nylon-elastomer composite sheet is impregnated to solubility balance under a carbon...

Embodiment 2

[0069] In an embodiment of the present invention, the nylon elastomer composite material includes the following components in parts by mass:

[0070] Nylon elastomer: 93 parts;

[0071] Thermoplastic polyurethane: 7 parts;

[0072] Antioxidant: 0.2 parts;

[0073] Nano nucleating agent: 3 parts;

[0074] Stearic acid: 0.5 parts;

[0075] Cell stabilizer: 0.3 part;

[0076] Among them, the antioxidant is AT-10; the nano-nucleating agent is nano-titanium dioxide; the cell stabilizer is polyisobutyl methacrylate.

[0077] After drying, stirring and mixing the weighed above components, put them into the barrel of the twin-screw extruder for melting and kneading, and inject them into the midsole-shaped mold to obtain the midsole-shaped nylon elastomer composite sheet material; among them, the barrel temperature is 240°C, the mold temperature is 40°C, the injection pressure is 780bar, and the holding pressure is 350bar.

[0078] The obtained nylon-elastomer composite sheet is ...

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Abstract

The invention provides a foam material for shoes as well as a preparation method and application thereof. The foam material is prepared from a nylon elastomer composite material through injection molding and supercritical fluid foaming molding processes in sequence, and the nylon elastomer composite material comprises the following components in parts by mass: 50-100 parts of nylon elastomer resin, 0-50 parts of a thermoplastic elastomer resin, 0.5-3 parts of a nano nucleating agent, 0-0.6 part of an antioxidant, 0-1.2 parts of stearic acid, and 0-0.6 part of a foam stabilizing agent. The foam material for shoes has nano-pores, is light in weight, ensures high hardness, has the advantages of high resilience, low compression deformation, high tensile strength and the like, can greatly reduce the weight of sneakers when being used as a shoe insole material, and has excellent mechanical properties and durability. In addition, the shoe insole material is prepared through rapid pressure relief and foaming after supercritical fluid impregnation, the preparation process is shorter, and the efficiency is higher.

Description

[0001] This application is a divisional application of the Chinese invention patent application with the filing date of October 23, 2018, the title of the invention is "A foam material for shoes, its preparation method and its application", and the application number is 201811234651.1. technical field [0002] The invention relates to the technical field of footwear products, in particular to a foam material for footwear, its preparation method and its application. Background technique [0003] In the field of footwear products, especially sports shoes, the lighter weight and excellent compression resistance of shoes have an important impact on athletes' sports performance and wearing experience. Among them, the use of foam materials is one of the ways to realize the lightweight of shoe materials, and is widely used in the midsole of shoes. At present, foam shoe materials on the market are basically prepared by chemical foaming, but this process is less environmentally frien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L87/00C08L75/04C08L67/00C08L33/08C08K13/02C08K3/22C08K3/04C08K5/09C08J9/12A43B13/04
CPCA43B13/04C08J9/0023C08J9/0061C08J9/0071C08J9/0095C08J9/122C08J2387/00C08J2203/06C08J2203/08C08J2467/00C08J2475/04
Inventor 熊祖江安格斯·尼姆林·沃德洛李苏马克·安德鲁·克罗嫩伯格刘艺龙
Owner ANTA CHINA
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