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Elastic foamed material and preparation method of elastic foamed material

A foaming material and elastomer technology, applied in the field of elastomer foaming material and its preparation, can solve the problems of high density, achieve high low temperature resistance, shorten foaming time, and good elasticity

Active Publication Date: 2013-01-23
CHINA PETROCHEMICAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem of high density still exists in the above US patents

Method used

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  • Elastic foamed material and preparation method of elastic foamed material
  • Elastic foamed material and preparation method of elastic foamed material
  • Elastic foamed material and preparation method of elastic foamed material

Examples

Experimental program
Comparison scheme
Effect test

example 1-5

[0036] In Example 1-5, the elastomer SEB SYH-503 was selected as the foaming base material, and the pellets were put into a YX-50 flat vulcanizing machine for foaming. The mold size was 150mm×100mm×10mm, and the foaming time was controlled at 10mm. The foaming temperature was controlled at 180°C, and the resilience was measured with a 10mm thick non-foamed injection molded sheet. The results are shown in Table 2:

[0037] Table 2

[0038]

[0039]

[0040] Table 2 illustrates that the elastomeric foam material of the present invention has excellent aging performance, especially anti-slip performance, which means that slippers and yoga mats made of this material have good safety performance; embodiment 3 has the best overall performance , the amount of talcum powder added has a greater impact on the resilience and density of the material, the more the amount of SEBS added, the better the resilience of the elastomer foam material.

[0041] The density of the foamed materi...

Embodiment 3

[0051] Example 3 Use a scanning electron microscope SEM (Japan Electronics Co., Ltd., model JSM-5900LV) to test the internal structure of the foamed sample at different magnifications, see Figure 1-3 . from Figure 1-3 It can be seen that the cells of the foamed sample are uniform, small, with a diameter of 500-50 microns, and a closed cell structure.

Embodiment 6-10

[0053] Examples 6-10 Choose different types of elastomer SEBS as the foaming base material, put the pellets into the foaming device, the mold size is 150mm×100mm×10mm, the foaming time is controlled at 10mm, and the foaming temperature is controlled at 180°C , the resilience was measured by non-foamed injection molded sheet, the results are shown in Table 3:

[0054] table 3

[0055]

[0056] Table 3 shows that with SEBSYH-502 and YH-561, the elastomer foam material can obtain better resilience and lower density, and has excellent anti-slip performance and aging resistance. .

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Abstract

The invention discloses an elastic foamed material and a preparation method of the elastic foamed material, wherein the preparation method of the elastic foamed material comprises taking a thermoplastic elastomer material SEBS (styrene-ethylene-butylene-styrene) as a basic material and adding PP (polypropylene), EVA (ethylene-vinyl acetate) resin, an inorganic filler and a small amount of filling oil, a promoter, a cross-linking agent, a foaming agent and various auxiliary agents; the foamed material has uniform foamed holes, and the dosage of the cross-linking agent is small; and the foamed material is free from poison or odor, has good elasticity, is excellent anti-slipping property, low density which is as low as 0.040 grams per cubic centimeter.

Description

technical field [0001] The invention relates to an elastomer foam material and a preparation method thereof. Background technique [0002] In recent years, EVA foam sole material has gradually become the mainstream of casual sports shoe materials. Its good flexibility, elasticity, excellent chemical resistance and coloring performance, and light weight are quickly accepted by the majority of sports shoe sole manufacturers. , has become synonymous with sports shoe materials. Especially after the TPR composite outsole was developed, it perfectly combines the excellent wear resistance of rubber and the low specific gravity of EVA. [0003] In the past few years, although the all-colored TPR rubber outsole of sports shoes provided the wearer with excellent anti-slip and wear-resistant properties, the monotonous color and relatively heavy weight were the shortcomings that designers had been unable to break through. Although there are many application products in the field of EV...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L23/08C08L23/12C08K13/02C08K3/34C08K3/22C08K5/14C08J9/10
Inventor 周伟平方辉姚琼李望明
Owner CHINA PETROCHEMICAL CORP
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