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A kind of highly elastic rubber elastomer colloid

A rubber-elastomer and high-elasticity technology, applied in the field of polymer material chemistry, can solve the problems of slow growth rate of natural rubber production, and achieve the effects of low crack grade, high plasticity and high impact force.

Active Publication Date: 2018-05-01
FUJIAN WUCHIHENG TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited by geographical conditions, the growth rate of natural rubber production in my country is slow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Step 1, raw material selection: choose 35 parts of natural rubber, 15 parts of isoprene rubber, 20 parts of butadiene rubber, 10 parts of ethylene-vinyl acetate copolymer; other rubber additives are made of 8 parts of reinforcing agent fumed silica, It consists of 5 parts of silicone oil as a softener, 4 parts of white mineral oil as a plasticizer, 1 part of water-dispersible polyisocyanate as a bridging agent, and 2 parts of other additives.

[0015] Step 2, internal mixing: at room temperature, put the configured natural rubber, isoprene rubber, butadiene rubber into an internal mixer for internal mixing to obtain rubber A;

[0016] Step 3, mixing: mix the rubber A obtained in step 2 with the ethylene-vinyl acetate copolymer evenly in a torque rheometer to obtain the mixed rubber B, and add reinforcing agent, softener and plasticizer in sequence kneading agent, foaming agent, bridging agent and other auxiliary agents in the kneader evenly to obtain rubber compound C; ...

Embodiment 2

[0019] Step 1, raw material selection: select 30 parts of natural rubber, 10 parts of isoprene rubber, 25 parts of butadiene rubber, 10 parts of ethylene-vinyl acetate copolymer; another rubber additive consists of 10 parts of reinforcing agent fumed silica, It consists of 6 parts of silicone oil as a softener, 6 parts of white mineral oil as a plasticizer, 1.5 parts of water-dispersible polyisocyanate as a bridging agent, and 1.5 parts of other additives.

[0020] Step 2, internal mixing: at room temperature, put the configured natural rubber, isoprene rubber, butadiene rubber into an internal mixer for internal mixing to obtain rubber A;

[0021] Step 3, mixing: mix the rubber A obtained in step 2 with the ethylene-vinyl acetate copolymer evenly in a torque rheometer to obtain the mixed rubber B, and add reinforcing agent, softener and plasticizer in sequence kneading agent, foaming agent, bridging agent and other auxiliary agents in the kneader evenly to obtain rubber compo...

Embodiment 3

[0024] Step 1, raw material selection: select 40 parts of natural rubber, 20 parts of isoprene rubber, 10 parts of butadiene rubber, and 15 parts of ethylene-vinyl acetate copolymer; in addition, the rubber auxiliary agent consists of 5 parts of reinforcing agent fumed silica, It consists of 2 parts of silicone oil as a softener, 4 parts of white mineral oil as a plasticizer, 1.5 parts of water-dispersible polyisocyanate as a bridging agent, and 2.5 parts of other additives.

[0025] Step 2, internal mixing: at room temperature, put the configured natural rubber, isoprene rubber, butadiene rubber into an internal mixer for internal mixing to obtain rubber A;

[0026] Step 3, mixing: mix the rubber A obtained in step 2 with the ethylene-vinyl acetate copolymer evenly in a torque rheometer to obtain the mixed rubber B, and add reinforcing agent, softener and plasticizer in sequence kneading agent, foaming agent, bridging agent and other auxiliary agents in the kneader to obtain ...

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PUM

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Abstract

The invention relates to a high-elasticity REP rubber granule, belonging to the field of high polymer materials. The high-elasticity REP rubber granule is composed of a rubber composition and a rubber ingredient, totaling 100 parts by weight. The rubber composition is composed of 20-60 parts of natural rubber, 5-25 parts of isoprene rubber, 10-40 parts of cis-1,4-polybutadiene rubber and 10-25 ethylene-vinyl acetate copolymer. The rubber ingredient is composed of 5-20 parts of reinforcing agent, 2-10 parts of softening agent, 2-10 parts of plasticizer, 0.5-3.5 part of bridging agent and 1-4 composed of other ingredients. The rubber product prepared from the high-elasticity REP rubber granule has high elasticity and high plasticity. The high-elasticity REP rubber granule still has high flexibility and softness at -50 DEG C, and can greatly enhance the impact resistance of the rubber product, and the comprehensive properties are about 2 times higher than those of the traditional rubber product.

Description

technical field [0001] The invention relates to a high-elasticity rubber elastomer colloid, which belongs to the field of polymer material chemistry. Background technique [0002] High elasticity is the most valuable characteristic of rubber products. The high elasticity of rubber products comes from the movement of rubber molecular segments and is formed through conformational changes. After the external force is removed, it can immediately return to the original shape, which is called ideal elasticity. Since the interaction between rubber molecules will hinder the movement of molecular segments, part of the force acting on rubber molecules is used to overcome the viscous resistance between molecules, and the other part deforms the molecular chains, which constitute the viscoelasticity of rubber. Therefore, high-quality rubber is characterized by both high elasticity and viscosity. Among general-purpose rubbers, butadiene rubber and natural rubber have the best elasticity...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L9/00C08L23/08C08L83/04C08K13/02C08K3/36C08K5/01C08K5/29
CPCC08L7/00C08L2201/12C08L2203/14C08L2205/035C08L9/00C08L23/0853C08L83/04C08L91/06C08K13/02C08K3/36
Inventor 丁天宁丁幼丝丁德材
Owner FUJIAN WUCHIHENG TECH DEV CO LTD
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