Preparation method of EVA/plant fiber foamed composite material for shoes

A technology for plant fibers and shoes, which can be used in footwear, applications, clothing, etc. It can solve the problems of easy compression deformation, poor resilience, and small amount of addition, and achieve the effect of small compression deformation, low density, and excellent resilience

Inactive Publication Date: 2006-11-22
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The common foamed EVA sole materials currently on the market are generally made of calcium carbonate, EVA and other modifiers (such as POE, PE, BR, etc.) Defects such as poor elasticity, easy compression deformation, brittleness, and cracks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0006] The preparation method of the present invention is as follows: EVA is used as the main raw material, plant fiber and inorganic powder are used as auxiliary materials, and cross-linking agent, auxiliary cross-linking agent, foaming agent, silicone wool anti-shrinkage agent CS and surface treatment The preparation process is as follows: crush and dry the plant fiber, put it into a high-speed mixer, add surface treatment agent B, perform surface activation treatment, and then add it to the internal mixer together with EVA, surface treatment agent A and other raw materials Carry out kneading and mixing. During the mixing process, the surface treatment agent A and EVA undergo a chemical grafting reaction to improve the bonding performance between the plant fiber and the EVA two-phase interface. When the mixing and plasticization are complete, put it into the single-screw extrusion granulation unit Carry out granulation, prepare the EVA / vegetable fiber high-foaming composite s...

Embodiment 1

[0025] This example specifically describes the preparation process of EVA / rice straw fiber high-foaming composite shoe materials. The straw is crushed into a size below 175 μm. After drying, it is placed in a high-speed mixer for surface activation treatment, and then mixed with EVA and other raw materials. Put them together into an internal mixer for mixing, and when the mixing and plasticization are complete, put them into a single-screw extrusion granulation unit for granulation, and prepare EVA / plant fiber high-foaming composite shoe materials. The specific formula is shown in Table 1. Process parameters of the internal mixer: the temperature is controlled within 100°C, and the materials are kneaded in the internal mixer until they are evenly kneaded. The process parameters of the single-screw extruder are: the temperature of the first zone is 90°C, the temperature of the second zone is 90°C, the temperature of the third zone is 100°C, and the temperature of the die head i...

Embodiment 2

[0028] What embodiment two narrates is the preparation method of EVA / chaff fiber high-foaming composite shoe material.

[0029] blended material

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PUM

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Abstract

The invention discloses a preparing method of EVS plant fiber foaming composite shoe material, which is characterized by the following: setting EVA as main material, plant fiber powder and inorganic powder material as auxiliary; matching cross linker, auxiliary cross linker, foaming agent AC, organic silicon wool sanforizing agent CS, plasticizer and surface additive. The preparing course comprises the following steps: grinding the plant fiber; drying; putting the fiber in the high-speed stirrer to knead; removing water; proceeding surface active disposal; adding the prepared material with EVA, surface additive A and other materials in the closed-smelting machine; squeezing the grain to produce high foaming composite shoe material of EVA plant fiber.

Description

technical field [0001] The invention provides a preparation method of EVA / plant fiber foam composite shoe material. Background technique [0002] The common foamed EVA sole materials currently on the market are generally made of calcium carbonate, EVA and other modifiers (such as POE, PE, BR, etc.) Poor elasticity, easy compression deformation, easy to become brittle, cracks and other defects. In the past ten years, in order to expand or maintain their own market areas, domestic production enterprises have focused on reducing material costs, adding recycled EVA, other cheap elastomer materials, or increasing the amount of inorganic materials, or using recycled EVA foam shoes. And other means to manufacture low-cost, low-grade shoes. It is a common problem in my country's footwear industry to blindly pursue low cost without paying attention to the development of brand shoes with high added value. Although my country is a big exporter of shoes, the number of branded shoes i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06A43B1/14B29B9/12B29C48/395C08K9/00C08L97/02
Inventor 郑玉婴林增坤
Owner FUZHOU UNIV
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