Formula and preparation process of easily degradable natural material for shoes

A natural material and easy-to-degrade technology, applied in footwear, applications, clothing, etc., can solve the problem of long-term degradation of pure EVA materials and achieve good slip resistance

Inactive Publication Date: 2015-04-29
张子亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a more environmentally friendly formula and manufacturing process for footwear that is easy to degrade natural materials in view of the shortcoming that the degradation of the existing pure EVA material for footwear requires a long period of time.

Method used

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  • Formula and preparation process of easily degradable natural material for shoes
  • Formula and preparation process of easily degradable natural material for shoes
  • Formula and preparation process of easily degradable natural material for shoes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

0.8

[0068] Among the above schemes, the proportion of natural particles is

[0069]

Embodiment 2

[0072] Among the above schemes, the proportion of natural particles is

[0073]

Embodiment 3

0.3

[0077] Among the above schemes, the proportion of natural particles is

[0078]

plan 1

Scenario 2

Option 3

sweet potato starch

51

14

35

Glycerin

43

13

44

polyethylene

46

14

40

[0079] In the above-mentioned embodiment, the formula of scheme 1 is produced according to the following process:

[0080] Step 1: Pour EVA, polyethylene oxide, filler, natural particles, zinc oxide, stearic acid, degradation agent into the blender, stir and heat, first heat to 90-91°C to melt the material, and then increase the temperature to 119°C-120°C, then add bridging agent and foaming agent, then raise the temperature to 133°C-134°C, and pour the materials into the internal mixer;

[0081] Step 2: Banbury the materials in a banbury mixer, the banbury time is 12 minutes, and the temperature is 120-121°C;

[0082] Step 3: Pour the mixed material into the open mixer, lower the temperature to 75...

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Abstract

The invention relates to a footwear mixed natural material, and a formula and a preparation process thereof, and provides the footwear mixed natural material which can effectively shorten the degradation time of a footwear EVA material, and the formula and the preparation process thereof, wherein the footwear EVA material has a certain slip resistance. The footwear mixed natural material formula comprises the components calculated by weight: 10 parts to 20 parts of EVA, 30 parts to 40 parts of polyoxyethylene, 10 parts to 15 parts of a filling agent, 30 parts to 40 parts of natural particles, 0.5 part to 5.5 parts of a cross-linking agent, 2.0 parts to 3.0 parts of zinc oxide, 0.8 part to 5.8 parts of a foaming agent, and 10 parts to 20 parts of stearic acid. All the raw materials are put into an internal mixer for seal mixing; the seal mixed materials are subjected to open mixing in an open mill; the open mixed sheets are put into a granulator for granulating; and the obtained particles are put into a foaming mold for forming.

Description

technical field [0001] The invention relates to a shoe material formula and a production process, in particular to a shoe material formula and a production process of easily degradable natural materials. Background technique [0002] EVA is a relatively common midsole material with good softness and elasticity, and is widely used in foamed shoe materials, functional shed films, packaging films, hot melt adhesives, wires and cables, toys and other fields. However, in the traditional shoe material formula, the content of EVA accounts for almost 100% of the unit formula, and the time required for the degradation of this shoe pure EVA material is long, probably more than ten years. For this reason, a more environmentally friendly EVA hybrid material is needed to replace the original pure EVA material for footwear to shorten the degradation time. This more environmentally friendly EVA mixed material can use some natural and easily degradable natural materials to replace part of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L23/06C08L23/30C08L23/08C08K13/04C08K7/14C08K3/22C08K5/09C08K5/053C08K3/26C08K3/34C08J9/10B29B9/06B29B7/28A43B1/14
CPCA43B1/14C08J9/103C08J2203/04C08J2371/00C08J2403/02C08J2423/06C08J2423/08C08L71/00C08L2205/035C08L23/0853C08L3/02C08L23/06C08K13/02C08K3/34C08K2003/2296C08K5/09C08K5/053
Inventor 张子亮
Owner 张子亮
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