Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Evaluation of BR Blending Methods for ESBR/silica Wet Masterbatch Compounds

  • Kim, Woong (Department of Polymer Science & Chemical Engineering, Pusan National University) ;
  • Ahn, Byungkyu (Department of Polymer Science & Chemical Engineering, Pusan National University) ;
  • Mun, Hyunsung (Department of Polymer Science & Chemical Engineering, Pusan National University) ;
  • Yu, Eunho (Department of Polymer Science & Chemical Engineering, Pusan National University) ;
  • Hwang, Kiwon (Department of Polymer Science & Chemical Engineering, Pusan National University) ;
  • Kim, Wonho (Department of Polymer Science & Chemical Engineering, Pusan National University)
  • Received : 2017.10.06
  • Accepted : 2017.12.04
  • Published : 2017.12.31
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Abstract

Wet masterbatch (WMB) technology is studied to develop high-content and highly disperse silica-filled compounds. This technology refers to the solidification of surface-modified silica with a rubber solution or latex. Until now, researchs based on styrene butadiene rubber (SBR)/silica WMB has been mainly performed. However, the blending of SBR/silica WMB and BR is not known and is currently under research and development. Therefore, in this study, the BR blending method suitable for emulsion (ESBR)/silica WMB is investigated by measuring their cure characteristics and the mechanical and dynamic viscoelastic properties. As a result, it was confirmed that the blending of ESBR/silica WMB and BR/silica dry masterbatch is most appropriate. However, it showed a disadvantage compared with the conventional mixing method, which was due to the surfactant remained and the sulfuric acid used as the coagulant.

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