文章摘要
Effect of Mixing Process on Properties of SBR/BR Blend
Received:September 28, 2017  Revised:September 28, 2017
DOI：10.12136/j.issn.1000-890X.2019.02.0128
Key Words: mixing process；mixing temperature；rotor speed；SBR；BR；bound rubber
Author NameAffiliationE-mail
WANG Haiyan* Qingdao Blackcat Carbon Black Science & Technology Co.，Ltd wanghaiyan756com@126.com 
WANG Hong Qingdao Blackcat Carbon Black Science & Technology Co.，Ltd  
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Abstract:
      The effect of mixing process on the properties of styrene butadiene rubber（SBR）/butadiene rubber（BR） blend was investigated. The results showed that，with the process in which pretreated silica was added first and carbon black was added in the second stage, the dispersion of the filler was improved，the rubber compound had a large content of bound rubber，good physical properties and wear resistance. At the same rotor speed，with the increase of mixing temperature，the strength and wear resistance of the vulcanized rubber were generally improved. At the same mixing temperature，with the increase of rotor speed，the strength and wear resistance of the vulcanized rubber were generally improved，and the heat build-up decreased. When the mixing temperature and rotor speed were too high，the comprehensive performance decreased. When the mixing temperature was 90 ℃ and the rotor speed was 70 r·min-1，the comprehensive performance of the vulcanized rubber was better.
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