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A kind of odorless EVA material used as sole and preparation method thereof

A kind of banburying and natural technology, applied in the direction of soles, applications, footwear, etc., can solve the problems of poor breathability of soles, easy to produce peculiar smell, unpleasant smell of materials, etc., to achieve the effect of good breathability, comfort and elasticity.

Active Publication Date: 2016-02-03
NANJING DONGYA RUBBER & PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of shoemaking, most of the existing shoe soles are made of EVA materials with strong smell and smell and various additives through mixing, foaming or secondary foaming. The material itself smells very bad. It is easy to make shoes smelly; in addition, the soles made of traditional EVA material foaming or secondary foaming are also very poor in air permeability, making it easier for people to smell when wearing them.
And the soles made of some other odorless materials cannot guarantee the comfort and elasticity of the shoes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: The raw materials of the following parts by weight are prepared and sent to the banbury mixer for banbury mixing:

[0028] EVA70 copies;

[0029] 5 parts of natural hemp stalk powder;

[0030] 3 parts of natural bamboo fiber;

[0031] 3 parts of filler;

[0032] 2.5 parts of odorless foaming agent;

[0033] 0.3 parts of odorless coupling agent;

[0034] 0.5 parts of zinc oxide powder;

[0035] 0.1 parts of stearic acid,

[0036] The banburying temperature is controlled at 105°C, the air pressure is 0.65kg, and the banburying time is 10 minutes; the mixture obtained from the banburying is sent to the open mixer for kneading, and the temperature is controlled at 80°C during the kneading, 15mm2 times, 1mm2 times; The thickness of the tablet machine is 2mm, and the cooling water of the tablet machine is kept smooth; the resulting mixture is sent to the foaming machine for foaming, the foaming temperature is 160 ° C, the pressure is 170 kg, and the time is ...

Embodiment 2

[0037] Example 2: The raw materials of the following parts by weight are prepared and sent to the banbury mixer for banbury mixing:

[0038] EVA90 copies;

[0039] 15 parts of natural hemp stalk powder;

[0040] 7 parts of natural bamboo fiber;

[0041] 7 parts of filler;

[0042] 4.5 parts of odorless foaming agent;

[0043] 0.7 parts of odorless coupling agent;

[0044] 1.5 parts of zinc oxide powder;

[0045] 0.5 parts of stearic acid,

[0046] The banburying temperature is controlled at 115°C, the air pressure is 0.8kg, and the banburying time is 10 minutes; the mixture obtained from the banburying is sent to the open mixer for kneading, and the temperature is controlled at 90°C during the kneading, 15mm2 times, 1mm2 times; The thickness of the tablet machine is 3mm, and the cooling water of the tablet machine is kept smooth; the resulting mixture is sent into the foaming machine for foaming, the foaming temperature is 180 ° C, the pressure is 170 kg, and the time ...

Embodiment 3

[0047] Example 3: The raw materials of the following parts by weight are prepared and sent to the banbury mixer for banbury mixing:

[0048] EVA80 copies;

[0049] 10 parts of natural hemp stalk powder;

[0050] 5 parts of natural bamboo fiber;

[0051] 5 parts of filler;

[0052] 3.5 parts of odorless foaming agent;

[0053] 0.5 parts of odorless coupling agent;

[0054] 1 part zinc oxide powder;

[0055] 0.3 parts of stearic acid,

[0056] The banburying temperature is controlled at 110°C, the air pressure is 0.7kg, and the banburying time is 10 minutes; the mixture obtained from the banburying is sent to the open mixer for kneading, and the temperature is controlled at 85°C during the kneading, 15mm2 times, 1mm2 times; The thickness of the tablet machine is 3mm, and the cooling water of the tablet machine is kept smooth; the resulting mixture is sent to the foaming machine for foaming, the foaming temperature is 170 ° C, the pressure is 175 kg, and the time is 15 mi...

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Abstract

The invention discloses an odorless EVA material used as a shoe sole and a preparation method thereof. The odorless EVA material used as a shoe sole includes the following components: EVA? 70-90 parts; 5-15 parts of natural hemp stalk powder; 3-7 parts of natural bamboo fiber; 3-7 parts of filler; 2.5-4.5 parts of odorless foaming agent; 0.3-0.7 parts of odorless coupling agent; zinc oxide powder 0.5 to 1.5 parts; 0.1 to 0.5 parts of stearic acid, in parts by weight. The preparation method includes the steps of banburying, opening refining, discharging, foaming and the like. The material of the invention is made by foaming EVA as the base material, which can ensure the comfort and elasticity of the shoes, and at the same time, the shoes can effectively deodorize, deodorize, and mildew, and have good air permeability.

Description

technical field [0001] The present invention relates to an EVA (ethylene-vinyl acetate copolymer) material used as a shoe sole, in particular to an odorless EVA material used as a shoe sole. Background technique [0002] In the process of shoemaking, most of the existing shoe soles are made of EVA materials with strong smell and smell and various additives through mixing, foaming or secondary foaming. The material itself smells very bad. It is easy to make shoes produce peculiar smell; in addition, the soles made of traditional EVA material foaming or secondary foaming are also very poor in air permeability, which makes it easier for people to produce peculiar smell when wearing them. And use the sole that some other odorless materials are made, can not guarantee the comfort and elasticity of shoes again. Contents of the invention [0003] Purpose of the invention: the purpose of the present invention is to address the deficiencies of the prior art and provide a shoe sole...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L1/02C08K13/02C08K3/22C08K5/09C08J9/04A43B13/04
CPCA43B13/04C08J9/04C08J2323/08C08J2497/02C08L23/0853C08L2203/14C08L2205/025C08L2205/03C08L2205/16C08L97/02C08K13/02C08K2003/2296C08K5/09
Inventor 葛胜超
Owner NANJING DONGYA RUBBER & PLASTICS
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