Study on Increasing Conversion of Styrene/Butadiene Co-Polymerization by Adjusting Basic Recipe

Abstract:

The effects of initiator, modifier, electrolyte, and emulsifier on emulsion polymerization of styrene butadiene rubber were investigated. The results showed that the conversion could reach up to 70% within 12 hour with the same properties as conversion 62% without changing the kinds and specification by using the adjusted recipe: the amount of initiator was 10%, the mass ratio of initial amount to addition amount of molecular weight regulator was 100/20, addition time was at polymerization beginning 2 hour, the initial amount of electrolyte was 110%-115%, the total amount of emulsifier was 110%, the addition amount of emulsifier was 10% and adding time was at polymerization beginning 2 hour. the raw and vulcanizate properties of rubber crumb high monomer conversion of 70% by adjusting recipe were satisfied to meet the requirements of the superior product standard of styrene butadiene rubber.

• Periodical: Advanced Materials Research (Volumes 602-604)
• Pages: 722-726
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.602-604.722
• Online since: December 2012
• Authors: Yan Jiang Jin, Ben Xian Shen, Jun Sui, Lei Yang, Ji Gang Zhao
• Keywords: Emulsion Polymerization, Molecular Weight Distribution, Monomer Conversion, Mooney Viscosity, Styrene Butadiene Rubber (SBR)

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