A closed-cell secondary foaming material combined with styrene-butadiene rubber, natural rubber and high styrene resin and its preparation method

A high-styrene resin and natural rubber technology, applied in the field of foaming materials, can solve chemical weather resistance, poor embossing and shaping, low tensile and tear strength, embossing, poor plasticity, etc. problems, to achieve the effect of easy implementation of preparation process, outstanding performance and low cost

Active Publication Date: 2018-06-05
YIBAO FUJIAN POLYMER MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the maturity of domestic production technology, styrene-butadiene rubber has been widely used in various industries. It has good elasticity, wear resistance, crack resistance, wet skid resistance and price advantages and has become the mainstream rubber type. Low strength, chemical and weather resistance, poor embossing and shaping; natural rubber has good resilience, elongation, tensile strength, and tear strength, but in terms of shortcomings, embossing and plasticity are not good. Good, basically similar to styrene-butadiene rubber; high-styrene resin has been widely used in the field of shoe foam materials in recent years due to its excellent mechanical stiffness and wear resistance, but high-styrene resin products also have poor softness and shrinkage Big disadvantage, and they are all one-time vulcanized products, and the process level is low
In terms of miscibility of the three materials, since the former two belong to rubber materials, while the latter is a thermoplastic elastomer, it is a big difficulty for foaming materials to have poor dispersion after processing and fusion. How to improve the process to improve dispersion Good, low cost, surface treatment such as product embossing, wear-resistant, anti-slip, comprehensive physical properties, so as to broaden the scope of application, a breakthrough needs to be made

Method used

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  • A closed-cell secondary foaming material combined with styrene-butadiene rubber, natural rubber and high styrene resin and its preparation method
  • A closed-cell secondary foaming material combined with styrene-butadiene rubber, natural rubber and high styrene resin and its preparation method
  • A closed-cell secondary foaming material combined with styrene-butadiene rubber, natural rubber and high styrene resin and its preparation method

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Embodiment 1

[0043] Embodiment 1, the used material source specification of embodiment 2 are as shown in table 1 below:

[0044] Table 1. Specifications of each raw material source

[0045]

[0046] Example 1

[0047] The preparation method of described styrene-butadiene rubber and natural rubber and high styrene resin and closed-cell secondary foaming material comprises the steps:

[0048] (1) Mixed rubber A mastication: put 100PHR of high styrene resin, 100PHR of natural rubber, and 0.2PHR of stearic acid into a 75L diamond-shaft W-type hammer internal mixer, pressurize to 7 kg, knead Refining for 8 minutes, during the kneading process, continue to fill cold water to cool down, and when the temperature reaches 110 ° C, the material is discharged to obtain the compound rubber A; put the compound rubber A into the 18-inch automatic mixing machine, the temperature is controlled at 80 ° C, 2 mm turning The material is 180 seconds, the thickness of 2mm is fluttered, cut into correspondin...

Embodiment 2

[0058] The preparation method of described styrene-butadiene rubber and natural rubber and high styrene resin and closed-cell secondary foaming material comprises the steps:

[0059] (1) Mixed rubber A mastication: Put 100PHR of high styrene resin, 100PHR of natural rubber, and 0.1PHR of stearic acid into a 75L diamond-shaft W-type hammer internal mixer, pressurize to 7 kg, and knead Refining for 8 minutes, during the kneading process, continue to fill cold water to cool down, and when the temperature reaches 115 ° C, the material is discharged to obtain compound rubber A; put the compound rubber A into the 18-inch automatic turning machine, the temperature is controlled at 85 ° C, 2mm turning The material is 180 seconds, the thickness of 2mm is fluttered, cut into corresponding weights and left to stand separately;

[0060] (2) Natural rubber mastication: put 100PHR of natural rubber and 0.1PHR of stearic acid into a 75L diamond-shaft W-type hammer internal mixer, pressurize ...

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Abstract

The invention relates to the technical field of foaming materials and provides a butadiene styrene rubber, natural rubber and high-styrene resin combined obturator secondary foaming material and a preparing method thereof. The butadiene styrene rubber, natural rubber and high-styrene resin combined obturator secondary foaming material is a modified blending material, wherein the butadiene styrene rubber, the natural rubber and the high-styrene resin can have better compatibility and are good in dispersibility. On the premise that the property is not lowered, and the use field is expanded, functions of thread forming lines on the surfaces of the butadiene styrene rubber and natural rubber products are improved, mechanical strength is improved by adding the high-styrene resin, the thread forming lines on the surfaces of the products are clear, and the products are made to have better aging-resisting performance, higher hardness and rigidity and higher mechanical strength and tearing strength. An advanced technical process of one-time vulcanization and secondary foaming is adopted for the preparing method of the butadiene styrene rubber, natural rubber and high-styrene resin combined obturator secondary foaming material, quality is guaranteed and enhanced while the product cost is effectively lowered, and competitiveness is improved.

Description

technical field [0001] The invention relates to the technical field of foaming materials, in particular to a closed-cell secondary foaming material combined with styrene-butadiene rubber, natural rubber and high-styrene resin and a preparation method thereof. Background technique [0002] With the maturity of domestic production technology, styrene-butadiene rubber has been widely used in various industries. It has good elasticity, wear resistance, crack resistance, wet skid resistance and price advantages and has become the mainstream rubber type. Low strength, chemical and weather resistance, poor embossing and shaping; natural rubber has good resilience, elongation, tensile strength, and tear strength, but in terms of shortcomings, embossing and plasticity are not good. Good, basically similar to styrene-butadiene rubber; high-styrene resin has been widely used in the field of shoe foam materials in recent years due to its excellent mechanical stiffness and wear resistanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/06C08L7/00C08L51/04C08L91/06C08K13/02C08K5/09C08K3/22C08K3/34C08J9/10B29C69/00
Inventor 侯汝红陈奕汲
Owner YIBAO FUJIAN POLYMER MATERIALS
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