Butadiene styrene rubber

A technology of styrene-butadiene rubber and natural rubber, which is applied in the field of styrene-butadiene rubber, can solve problems such as secondary hazards and endangering life safety, and achieve the effects of good weather resistance, good fatigue resistance, and good elasticity

Inactive Publication Date: 2014-10-01
裴秀琴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the flame retardant formulations of chloroprene rubber in China usually use halogen-containing flame retardants such as chlorine-containing flame retardants. Although the use of such flame retardants can satisfy a go

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of styrene-butadiene rubber, comprising the following raw materials in parts by weight: 70 parts of styrene-butadiene rubber; 10 parts of natural rubber; 3 parts of polyoxypropylene glyceryl ether; 25 parts of chlorinated paraffin; 10 parts of white carbon black; 3 parts of accelerator; 5 parts of ethylene-propylene copolymer; 3 parts of vulcanizing agent; 15 parts of calcium carbonate; 5 parts of N,N'-xylyl-p-phenylenediamine; 3 parts of plasticizer.

[0025] The average molecular weight of the polyoxypropylene glyceryl ether is 3500. The average molecular weight of the ethylene-propylene copolymer is 8000. The plasticizer is monomethyl adipate.

Embodiment 2

[0027] A kind of styrene-butadiene rubber, comprising the raw material of following parts by weight: 80 parts of styrene-butadiene rubber; 20 parts of natural rubber; 6 parts of polyoxypropylene glyceryl ether; 30 parts of chlorinated paraffin; 15 parts of white carbon black; 5 parts of accelerator; 15 parts of ethylene-propylene copolymer; 5 parts of vulcanizing agent; 18 parts of calcium carbonate; 8 parts of N,N'-xylyl-p-phenylenediamine; 5 parts of plasticizer.

[0028] The average molecular weight of the polyoxypropylene glyceryl ether is 5500. The average molecular weight of the ethylene-propylene copolymer is 15,000. The plasticizer is monoethyl adipate.

Embodiment 3

[0030] A kind of styrene-butadiene rubber, comprising the raw material of following parts by weight: 75 parts of styrene-butadiene rubber; 15 parts of natural rubber; 5 parts of polyoxypropylene glyceryl ether; 28 parts of chlorinated paraffin; 13 parts of white carbon black; 4 parts of accelerator; 10 parts of ethylene-propylene copolymer; 4 parts of vulcanizing agent; 16 parts of calcium carbonate; 7 parts of anti-aging agent; 4 parts of plasticizer.

[0031] The average molecular weight of the polyoxypropylene glyceryl ether is 4000. The average molecular weight of the ethylene-propylene copolymer is 10000. The plasticizer is dibutyl adipate.

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PUM

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Abstract

The invention relates to butadiene styrene rubber. The butadiene styrene rubber comprises the following raw materials in parts by weight: 70 to 80 parts of butadiene styrene rubber, 10 to 20 parts of natural rubber, 3 to 6 parts of polyoxypropylene glycerol ether, 25 to 30 parts of chlorinated paraffin, 10 to 15 parts of white carbon black, 3 to 5 parts of a promoting agent, 5 to 15 parts of an ethylene-propylene polymer, 3 to 5 parts of a vulcanizing agent, 15 to 18 parts of calcium carbonate, 5 to 8 parts of an anti-aging agent and 3 to 5 parts of a plasticizer. The butadiene styrene rubber is good in flame-retardant effect, no toxic gas is produced when in fire, the secondary harm is avoided, and the life security of people is not influenced.

Description

technical field [0001] The invention relates to a styrene-butadiene rubber. Background technique [0002] The elastic force of rubber is entirely produced by the conformational change of coiled molecules. Because the interaction between rubber molecules will hinder the movement of molecular chains, which is manifested as viscosity or viscosity, so that stress and strain are often in an unbalanced state. Part of the force acting on the rubber molecules is used to overcome the viscous resistance between the molecules and absorb part of the energy during the process of viscous friction; the other part deforms the molecular chains, which constitute the viscoelastic properties of rubber. When the rubber is dynamically deformed, due to the viscoelastic viscous resistance, the strain lags behind the stress. This rubber damping property produced by the hysteresis characteristic of rubber and internal friction during deformation is an excellent characteristic of rubber shock absorpt...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L7/00C08L23/16C08K13/02C08K5/02C08K3/36C08K3/26
Inventor 裴秀琴
Owner 裴秀琴
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