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Composite EVA material for manufacturing slippers and preparation method of composite EVA material

A technology for slippers and raw materials, applied in the application, footwear, clothing and other directions, can solve the problems of poor wear resistance, elastic adhesion, poor compatibility, reduced use performance, and reduced mechanical properties, etc., to achieve good compatibility and reduce decomposition. Temperature and compression set reduction effect

Inactive Publication Date: 2017-09-15
福建金宏昌体育用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the foaming rate of ethylene-vinyl acetate copolymer is high, the material deformation is large, the mechanical properties are significantly reduced, and there are still defects such as wear resistance, elasticity, adhesion, and poor compatibility with other substances, which greatly reduces Therefore, it is of great significance to develop ethylene-vinyl acetate copolymer foaming materials with better performance.

Method used

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  • Composite EVA material for manufacturing slippers and preparation method of composite EVA material

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Effect test

Embodiment 1

[0019] The present embodiment provides a kind of composite EVA material that is used for slipper manufacture, comprises the raw material of following mass parts: EVA30 parts; Thermoplastic elastomer styrene-isoprene-styrene block copolymer 55 parts; Crosslinking agent 0.75 parts 2.8 parts of blowing agent; 0.8 parts of zinc oxide; 12 parts of POE; 9 parts of maleic anhydride; 5 parts of cell regulator.

[0020] Present embodiment also provides a kind of preparation method of the composite EVA material that is used for slipper manufacture described in above-mentioned scheme, comprises the steps:

[0021] (1) Put EVA, thermoplastic elastomer styrene-isoprene-styrene block copolymer, foaming agent, zinc oxide, POE and maleic anhydride into the open mixer according to the proportion for mixing, Wherein the roller temperature of open mill is 80 ℃, and the roll distance is 0.4mm, and the graft rate of described maleic anhydride is 1%; Then mixed material is extruded into foam master...

Embodiment 2

[0026] The present embodiment provides a kind of composite EVA material that is used for slipper manufacture, comprises the raw material of following mass parts: EVA32 parts; Thermoplastic elastomer styrene-isoprene-styrene block copolymer 56 parts; Crosslinking agent 0.77 2.8 parts of blowing agent; 0.85 parts of zinc oxide; 14 parts of POE; 9.3 parts of maleic anhydride; 5.5 parts of cell regulator.

[0027] Present embodiment also provides a kind of preparation method of the composite EVA material that is used for slipper manufacture described in above-mentioned scheme, comprises the steps:

[0028] (1) Put EVA, thermoplastic elastomer styrene-isoprene-styrene block copolymer, foaming agent, zinc oxide, POE and maleic anhydride into the open mixer according to the proportion for mixing, Wherein the roller temperature of open mill is 85 ℃, and the roll distance is 0.45mm, and the grafting rate of described maleic anhydride is 1.1%; Then mixed material is extruded into foam m...

Embodiment 3

[0033] The present embodiment provides a kind of composite EVA material that is used for slipper manufacture, comprises the raw material of following mass parts: EVA35 parts; Thermoplastic elastomer styrene-isoprene-styrene block copolymer 58 parts; Crosslinking agent 0.8 2.8 parts of blowing agent; 0.9 parts of zinc oxide; 16 parts of POE; 9.5 parts of maleic anhydride; 6 parts of cell regulator.

[0034] Present embodiment also provides a kind of preparation method of the composite EVA material that is used for slipper manufacture described in above-mentioned scheme, comprises the steps:

[0035] (1) Put EVA, thermoplastic elastomer styrene-isoprene-styrene block copolymer, foaming agent, zinc oxide, POE and maleic anhydride into the open mixer according to the proportion for mixing, Wherein the roller temperature of open mill is 90 ℃, and the roll distance is 0.5mm, and the grafting rate of described maleic anhydride is 1.2%; Then mixed material is extruded into foam master...

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Abstract

The invention discloses a composite EVA material for manufacturing slippers and a preparation method of the composite EVA material, and relates to the technical field of foaming materials. The composite EVA material for manufacturing slippers comprises the following raw materials: EVA, a thermoplastic elastomer styrene-isoprene-styrene block copolymer, a cross-linking agent, a foaming agent, zinc oxide, POE, maleic anhydride and a foam regulating agent. The preparation method comprises the following preparation steps: (1) selecting a part of materials in an open mill for milling, and then preparing a foaming masterbatch from the mixed material by using an extruder; (2) putting the foaming masterbatch in a Banbury mixer for blending; (3) performing foaming; and (4) performing granulation. The disclosed composite EVA material for manufacturing slippers has little abrasion loss, significantly improved abrasion resistance and foaming-material elasticity, and improved usage performance.

Description

technical field [0001] The invention relates to the technical field of foaming materials, in particular to a composite EVA material used for making slippers and a preparation method thereof. Background technique [0002] Ethylene-vinyl acetate copolymer (Ethylene-Vinyl Acetate, EVA) rubber and plastic products are new environmentally friendly plastic packaging materials, which have good cushioning, shock resistance, heat insulation, moisture resistance, and chemical corrosion resistance. They are non-toxic and non-absorbent. EVA rubber and plastic products are designed to be processed and formed. Its shock resistance is better than traditional packaging materials such as polystyrene (foam), and it meets environmental protection requirements. It is the best choice for export products. Compared with shockproof packaging, it can be cut and formed; due to the large difference in density, it can also be used in a wider range of applications. It is widely used in foamed shoe mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L23/08C08K13/02C08K3/22C08K5/1539B29B7/00B29C35/02A43B1/14
CPCC08L53/02A43B1/14B29B7/005B29C35/02C08K2003/2296C08L2203/14C08L2205/03C08L2207/04C08L23/0853C08L23/0815C08K13/02C08K3/22C08K5/1539
Inventor 曾如意
Owner 福建金宏昌体育用品有限公司
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