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Modified rubber master batch and preparation method thereof, polybutadiene rubber composition, and preparation method and vulcanized rubber thereof

A technology of polybutadiene rubber and modified rubber, applied in the direction of rolling resistance optimization, road transportation emission reduction, etc., can solve problems such as no reports

Active Publication Date: 2014-01-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Modified rubber master batch and preparation method thereof, polybutadiene rubber composition, and preparation method and vulcanized rubber thereof
  • Modified rubber master batch and preparation method thereof, polybutadiene rubber composition, and preparation method and vulcanized rubber thereof

Examples

Experimental program
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Effect test

Embodiment 1~2

[0097] 1. Preparation of modified rubber masterbatch:

[0098] (1) Preparation of radiation crosslinked nitrile rubber latex:

[0099] In the nitrile rubber latex (nitrile-26) with a solid content of 45%wt, after adding the crosslinking aid trimethylolpropane triacrylate according to 3%wt of the solid content of the nitrile latex, carry out irradiation 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%.

[0100] (2) Latex mixing and coagulation:

[0101] 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 solid content of p...

Embodiment 2

[0105] Only the weight ratio of the modified rubber masterbatch and polybutadiene rubber BR9000 was changed to 11.25:88.75, the others were the same as in Example 1, and the compounding formula composition of the specific rubber composition was listed in Table 2. The properties of the vulcanizate are shown in Table 3.

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Abstract

The invention provides a modified rubber master batch and a preparation method thereof, a polybutadiene rubber composition, and a preparation method and a vulcanized rubber thereof. The modified rubber master batch comprises an uncrosslinked rubber and crosslinked-structure nitrile-butadiene rubber particles dispersed in the uncrosslinked rubber, wherein the average particle size of the nitrile-butadiene rubber particles is 50-200 nm; the gel content is 60 wt% or higher; the uncrosslinked rubber is styrene-butadiene rubber; and the weight ratio of the crosslinked nitrile-butadiene rubber particles to the uncrosslinked rubber is more than 20:80 and less than or equal to 80:20. The polybutadiene rubber composition comprises 100 parts by weight of polybutadiene rubber and 1-70 parts of modified rubber component which are blended. The vulcanized rubber of the polybutadiene rubber composition has the advantages of higher slippery resistance, obviously improved rolling resistance and favorable wear resistance, and can be used for preparing a high-performance car tread rubber.

Description

technical field [0001] The invention relates to the field of rubber, and more particularly, relates to a modified rubber masterbatch and a preparation method, a polybutadiene rubber composition modified by the modified rubber masterbatch, 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 imp...

Claims

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Application Information

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IPC IPC(8): C08L9/08C08L9/04C08J3/22C08J3/24C08J3/28C08L9/00
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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