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Emulsion polymerized styrene-butadiene rubber composition, preparation method thereof, and vulcanized rubber thereof

A technology of emulsion polystyrene butadiene rubber and composition, which is applied in the field of rubber and can solve problems such as no reports

Active Publication Date: 2013-05-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And although the particle size of the rubber gel is reported in these patents, when these rubber gels are dispersed in the vulcanized rubber, can they also achieve the dispersion of the primary particle size, and can they really bring into play the properties of the nanoscale rubber gel? Modification, not reported in any patent

Method used

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  • Emulsion polymerized styrene-butadiene rubber composition, preparation method thereof, and vulcanized rubber thereof
  • Emulsion polymerized styrene-butadiene rubber composition, preparation method thereof, and vulcanized rubber thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] 1. Preparation of modified rubber components:

[0097] (1) Preparation of radiation crosslinked nitrile rubber latex:

[0098] In the nitrile rubber latex (butyronitrile-26) that solid content is 45%wt, after adding crosslinking aid trimethylol propane triacrylate by 3%wt of nitrile latex solid content, carry out radiation crosslinking , the radiation dose is 3.0Mrad, and the radiation crosslinked nitrile rubber latex is obtained, the average particle diameter of the radiation crosslinked nitrile rubber particles in the latex is 100nm, and the gel content is 91%.

[0099] (2) Latex mixing and coagulation:

[0100] Add the nitrile rubber latex after radiation crosslinking to the uncrosslinked emulsion polystyrene butadiene rubber latex SBR1502 according to a certain solid content ratio, wherein the solid content of the nitrile rubber latex after radiation crosslinking is the same as that of the uncrosslinked The weight ratio of the solid content of the emulsion polysty...

Embodiment 2

[0104] 1. Preparation of modified rubber components:

[0105] Carry out the preparation of radiation crosslinked nitrile rubber latex and latex mixing and coagulation according to the same method as Example 1, only the solid content of the nitrile rubber latex after radiation crosslinking and the uncrosslinked emulsion polystyrene butadiene rubber latex The solid content weight ratio was changed to 80:20 to obtain a modified rubber component B in the solid state.

[0106] 2. Preparation of emulsion polystyrene butadiene rubber composition and its vulcanized rubber:

[0107] The above-mentioned modified rubber component B is used as a masterbatch, and is added to block raw rubber (emulsion polystyrene butadiene rubber SBR1500) with other related additives for mixing to obtain a mixed rubber. The formula composition is expressed in parts by weight See Table 2, the preparation and vulcanization method of the mixed rubber is the same as the above. Then the vulcanized rubber samp...

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Abstract

The invention provides an emulsion polymerized styrene-butadiene rubber composition, a preparation method thereof, and a vulcanized rubber thereof. The emulsion polymerized styrene-butadiene rubber composition comprises blended modified rubber component and emulsion polymerized styrene-butadiene rubber. Calculated according to the weight of emulsion polymerized styrene-butadiene rubber as 100 parts, the composition comprises 1-70 parts of the modified rubber component. The modified rubber component comprises uncrosslinked rubber and rubber particles with crosslinked structures, which are dispersed in the uncrosslinked rubber. The rubber particles with crosslinked structures are nitrile rubber particles with an average particle size of 50-200nm and a gel content of 60wt% or higher. The uncrosslinked rubber is styrene-butadiene rubber. A weight ratio of the rubber particles with crosslinked structures to the uncrosslinked rubber is 80:20-30:70. The rolling resistance, wet skid performance and wear resistance of the vulcanized rubber of the emulsion styrene-butadiene rubber composition can be improved. The vulcanized rubber can be used for preparing high-efficiency automobile tread rubber.

Description

technical field [0001] The invention relates to the field of rubber, in particular to an emulsion polystyrene butadiene rubber composition modified by a modified rubber component, a preparation method thereof, and a vulcanized rubber thereof. Background technique [0002] Automobiles are increasingly becoming an indispensable tool in modern life, and the power used by automobiles basically comes from petroleum. Petroleum resources are limited. At the same time, the rapid development of the automobile industry is also facing the pressure of reducing carbon dioxide emissions. How to reduce automobile fuel consumption has become more and more urgent. Reducing fuel consumption can not only reduce vehicle operating costs, but also reduce carbon dioxide emissions and alleviate the tension in oil resources. In addition to being affected by the car's own design factors, the fuel consumption of the car is also one of the important factors. The fuel consumption of the tire rolling re...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L9/02C08J3/28C08J3/24C08C1/14B60C1/00
CPCY02T10/86
Inventor 乔金樑丛悦鑫张晓红李迎高建明张乾民宋志海孙艳玲赖金梅宋培军蔡传伦赵国训张红彬戚桂村王亚李秉海
Owner CHINA PETROLEUM & CHEM CORP
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