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Anti-shrinkage modified EVA foam shoe material and preparation method thereof

An anti-shrinkage and anti-shrinkage agent technology, applied in footwear, applications, apparel, etc., to overcome high temperature resistance, reduce the value of residual stress, and reduce the trend of shrinkage

Inactive Publication Date: 2018-12-18
林伟坤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the technical defects existing in the prior art, the present invention provides an anti-shrinkage modified EVA foam shoe material and its preparation method to solve the long-standing technical problems of easy shrinkage and dimensional instability of EVA foam shoe material

Method used

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  • Anti-shrinkage modified EVA foam shoe material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0020] This embodiment provides an anti-shrinkage modified EVA foam shoe material, which is composed of the following components in parts by weight: 43 parts of Formosa Plastics 7470, 5 parts of Formosa Plastics 7350, 6 parts Taipoly 3312, 7 parts of Dow 3745, 10 parts of anti-shrinkage agent 203#, 1 part of zinc oxide, 7 parts of wear-resistant agent, 2 parts of filler, 0.3 parts of active agent, 0.65 parts of handover Joint agent, 2.3 parts of blowing agent, 4 parts of titanium dioxide. Among them, the anti-wear agent is a pre-dispersed masterbatch anti-wear agent, such as the model 662 anti-wear agent produced by Haili Company; the filler is talcum powder; the active agent is stearic acid; the crosslinking agent is dicumyl peroxide. DCP; Azodicarbonamide AC is selected as foaming agent; DuPont 103# is selected as titanium dioxide. The melt index of Formosa Plastics 7470 is 4.0g / 10min, the VA content is 26%, the melting point is 76°C, and the softening point is 48°C; the me...

Embodiment 2

[0022] This embodiment provides an anti-shrinkage modified EVA foam shoe material, which is composed of the following components in parts by weight: 40 parts of Formosa Plastics 7470, 6 parts of Formosa Plastics 7350, 8 parts Taipoly 3312, 7 parts of Dow 3745, 11 parts of anti-shrinkage agent 203#, 1.3 parts of zinc oxide, 8 parts of wear-resistant agent, 3 parts of filler, 0.4 parts of active agent, 0.6 parts of cross-linking agent Joint agent, 2.5 parts of blowing agent, 3.5 parts of titanium dioxide. Among them, the anti-wear agent is a pre-dispersed masterbatch anti-wear agent, such as the model 662 anti-wear agent produced by Haili Company; the filler is talcum powder; the active agent is stearic acid; the crosslinking agent is dicumyl peroxide. DCP; Azodicarbonamide AC is selected as foaming agent; DuPont 103# is selected as titanium dioxide. The melt index of Formosa Plastics 7470 is 4.0g / 10min, the VA content is 26%, the melting point is 76°C, and the softening point ...

Embodiment 3

[0024] This embodiment provides an anti-shrinkage modified EVA foam shoe material, which is composed of the following components in parts by weight: 42 parts of Formosa Plastics 7470, 5 parts of Formosa Plastics 7350, 7 parts Taipoly 3312, 8 parts of Dow 3745, 12 parts of anti-shrinkage agent 203#, 1.5 parts of zinc oxide, 6 parts of wear-resistant agent, 2.5 parts of filler, 0.5 parts of active agent, 0.7 parts of cross-linking agent Joint agent, 2.0 parts of blowing agent, 3 parts of titanium dioxide. Among them, the anti-wear agent is a pre-dispersed masterbatch anti-wear agent, such as the model 662 anti-wear agent produced by Haili Company; the filler is talcum powder; the active agent is stearic acid; the crosslinking agent is dicumyl peroxide. DCP; Azodicarbonamide AC is selected as foaming agent; DuPont 103# is selected as titanium dioxide. The melt index of Formosa Plastics 7470 is 4.0g / 10min, the VA content is 26%, the melting point is 76°C, and the softening point ...

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Abstract

The invention relates to an anti-shrinkage modified EVA foam shoe material. The material comprises 40-43 parts of Formosa Plastics 7470, 5-6 parts of Formosa Plastics 7350, 6-8 pieces of Taiju 3312, 7-8 parts of Dow 3745, 10-12 an anti-shrinkage agent 203#, 1-1.5 parts of zinc oxide, 6-8 parts of an anti-wear agent, 2-3 parts of a filler, 0.3-0.5 part of an activator, 0.6-0.7 part of a cross-linking agent, 2-2.5 parts of a foaming agent and 3-4 parts of titanium dioxide. High-melting point and low-melt strength components are selected, so the product maintains molecular stability during use, the strain force required by the shrinkage deformation of the product is improved, the material has a low melt strength when the melting point of the material is reached in the production process of the product, the resistance to volume expansion is reduced, and the residual stress of the product after molding is reduced, thereby the shrinkage tendency is reduced, and the problem of heat shrinkagedeformation of the finished product is solved while ensuring "light, flexible, soft and elastic" basic characteristics.

Description

technical field [0001] The invention relates to the technical field of footwear, in particular to an anti-shrinkage modified EVA foam shoe material and a preparation method thereof. Background technique [0002] EVA foam shoe material is a light, soft and comfortable shoe material variety that is made of EVA as the main material, mixed with various special elastomers, and obtained through a specific molding process. As consumers increasingly increase the comfort of shoes, the demand for "light, soft, soft and elastic" soles is getting higher and higher. "Light" means low density, "soft" means good hand feeling, and "soft" means low hardness. , "Bounce" means better resilience. Therefore, from a professional point of view, EVA soles have gradually become the preferred material. However, the EVA material has not been able to solve the problem of "the lighter, softer and more resilient the sole is, the easier it is to shrink and deform" in the actual manufacturing of the sole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08K13/02C08K3/22C08K5/14C08K5/09C08K3/34C08J9/10A43B1/14
CPCA43B1/14C08J9/0023C08J9/0061C08J9/0066C08J9/0095C08J9/103C08J2203/04C08J2323/08C08J2423/06C08J2423/08
Inventor 林伟坤
Owner 林伟坤
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