Composite foam material

A technology of composite foaming and foaming agent, applied in the field of composite materials, can solve the problem of inability to meet the requirements of high-strength sole material, and achieve the effects of good elasticity, moderate softness and light texture

Inactive Publication Date: 2016-06-22
XIANGTAN FUDI NUMERICAL CONTROL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above materials cannot meet the needs of high-strength sole materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A composite foaming material, in parts by weight, comprising: 30 parts of ethylene-vinyl acetate copolymer, 20 parts of polyethylene, 10 parts of EPDM rubber, 10 parts of filler, 2 parts of active agent, and 1 part of crosslinking agent 1 part, 3 parts of blowing agent and 1 part of metal fiber.

[0016] The polyethylene is low density polyethylene. The filler is a hollow microsphere modified filler. The active agent is stearic acid. The crosslinking agent is 1,4-bis-tert-butylperoxycumene. The blowing agent is azodicarbonamide. The metal fibers are aluminum alloy fibers.

Embodiment 2

[0018] A composite foaming material, in parts by weight, comprising: 15 parts of ethylene-vinyl acetate copolymer, 12 parts of polyethylene, 9 parts of EPDM rubber, 7 parts of filler, 1.5 parts of active agent, and 1 part of crosslinking agent 3 parts, 3 parts of blowing agent and 2 parts of metal fiber.

[0019] The polyethylene is a mixture of low-density polyethylene and linear low-density polyethylene. The filler is a hollow microsphere modified filler. The active agent is a mixture of stearic acid, fatty acid and low molecular weight polyethylene. The crosslinking agent is 1,4-bis-tert-butylperoxycumene. The foaming agent is expandable microspheres. The metal fibers are aluminum alloy fibers.

Embodiment 3

[0021] A composite foaming material, in parts by weight, comprising: 32 parts of ethylene-vinyl acetate copolymer, 22 parts of polyethylene, 13 parts of EPDM rubber, 11 parts of filler, 1.8 parts of active agent, and 2 parts of crosslinking agent 3 parts, 3 parts of blowing agent and 3 parts of metal fiber.

[0022] The polyethylene is a mixture of linear low density polyethylenes. The filler is a hollow microsphere modified filler. The active agent is low molecular weight polyethylene. The crosslinking agent is 1,4-bis-tert-butylperoxycumene. The foaming agent is expandable microspheres. The metal fibers are aluminum alloy fibers.

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PUM

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Abstract

The invention discloses a composite foam material. The composite foam material comprises, by weight, 0-35 parts of an ethylene-vinyl acetate copolymer, 0-25 parts of polyethylene, 0-15 parts of ethylene propylene diene monomer, 0-15 parts of a filler, 0.5-2.5 parts of an activator, 0.5-2.5 parts of a cross-linking agent, 1-6 parts of a foaming agent and 1-3 parts of metal fibers. The composite foam material has the advantages of high strength, good elasticity, light weight and moderate softness, and can meet demands of high strength soles.

Description

technical field [0001] The invention relates to a composite material, in particular to a composite foam material. Background technique [0002] EVA is an ethylene-vinyl acetate (vinyl acetate) copolymer, which is obtained by copolymerization of ethylene (English name: Ethylene) and vinyl acetate (English name: VinylAcetate). The full English name is: EthyleneVinylAcetate, referred to as EVA, Or E / VAC. Among them, the vinyl acetate content is generally 5% to 40%. Compared with polyethylene, EVA is widely used in foaming shoes due to the introduction of vinyl acetate monomer in the molecular chain, which reduces the crystallinity and improves flexibility, impact resistance, filler compatibility, and heat sealing performance. Materials, toys and other fields. [0003] In the EVA resin used in shoe materials, the vinyl acetate content is generally 15% to 22%. Because EVA resin blended foam products have softness, good elasticity, and chemical corrosion resistance, they are w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L23/16C08K13/04C08K7/06C08K5/09C08K5/14C08K7/22C08J9/10
Inventor 赵卓
Owner XIANGTAN FUDI NUMERICAL CONTROL EQUIP CO LTD
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