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Foam material for shoe, preparation method and application of foam material

A technology for foam materials and shoes, which is applied in the field of foam materials for shoes, and its preparation field, which can solve the problems of material performance degradation, mechanical properties such as compression deformation resistance of microcellular foam soles, etc., and achieve high resilience and good wearing and running experience, best mechanical properties and durability

Active Publication Date: 2019-02-26
ANTA CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 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 shoe, preparation method and application of foam material
  • Foam material for shoe, preparation method and application of foam material
  • Foam material for shoe, preparation method and application of foam material

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preparation example Construction

[0047] Embodiments of the present invention provide a method for preparing a foam material for shoes as described above, comprising the following steps:

[0048] Mixing and injection molding each component in the nylon elastomer composite material to obtain a nylon elastomer composite material;

[0049] 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.

[0050] 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

[0058] In an embodiment of the present invention, the nylon elastomer composite material includes the following components in parts by mass:

[0059] Nylon elastomer: 100 parts;

[0060] Antioxidant: 0.2 parts;

[0061] Nano nucleating agent: 3 parts;

[0062] Stearic acid: 0.5 parts;

[0063] Cell stabilizer: 0.3 parts;

[0064] Wherein, the antioxidant is AT-10; the nano-nucleating agent is nano-titanium dioxide; the cell stabilizer is polyisobutyl methacrylate.

[0065] After drying, stirring and mixing the weighed above components, put them into the barrel of a twin-screw extruder for melting and kneading, inject them into a midsole-shaped mold, and obtain a nylon elastomer composite sheet with a midsole shape 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.

[0066] The obtained nylon elastomer composite sheet is impregnated to solubility equilibrium under a car...

Embodiment 2

[0068] In an embodiment of the present invention, the nylon elastomer composite material includes the following components in parts by mass:

[0069] Nylon elastomer: 93 parts;

[0070] Thermoplastic polyurethane: 7 parts;

[0071] Antioxidant: 0.2 parts;

[0072] Nano nucleating agent: 3 parts;

[0073] Stearic acid: 0.5 parts;

[0074] Cell stabilizer: 0.3 part;

[0075] Wherein, the antioxidant is AT-10; the nano-nucleating agent is nano-titanium dioxide; the cell stabilizer is polyisobutyl methacrylate.

[0076] After drying, stirring and mixing the weighed above components, put them into the barrel of a twin-screw extruder for melting and kneading, inject them into a midsole-shaped mold, and obtain a nylon elastomer composite sheet with a midsole shape 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.

[0077] The obtained nylon elastomer composite sheet is impr...

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Abstract

The invention provides a foam material for a shoe, a preparation method and application of the foam material. The foam material is prepared by sequentially performing the processes of injection molding and supercritical fluid foaming molding on a nylon elastomer composite material, and the nylon elastomer composite material comprises the following components in parts by mass: 50-100 parts of nylonelastomer resin, 0-50 parts of thermoplastic elastomer resin, 0.5-3 parts of a nanometer nucleating agent, 0-0.6 part of an antioxygen, 0-1.2 parts of stearic acid and 0-0.6 part of a foaming stabilizer. The foam material for the shoe has nanopores, is relatively light in weight, is endowed with relatively high hardness, further has the advantages of high resilience, low compressive deformation,relatively high tensile strength and the like, greatly reduces the weight of a sneaker and also is also relatively excellent in mechanical property and durability when used as an insole material of the shoe. In addition, the insole material of the shoe is prepared by rapidly releasing the pressure and foaming after dipping in supercritical fluid, the preparation flow is shorter, and the efficiencyis higher.

Description

technical field [0001] 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 [0002] 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 friendly. [0003] Supercritical fluid foaming technology is one of the means to realize the lightweight of shoe materials, which has the characteristics of green and environmental protection. For example, the Chinese patent document with the application publication number CN 107200911 A dis...

Claims

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Application Information

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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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