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Study on the Change of Physical Properties with Silica Contents in Solution Styrene-Butadiene Rubber (SSBR)/Silica Composites

  • Kim, Tae Yeop (School of Energy, Materials, Chemical Engineering, Korea University of Technology and Education) ;
  • Won, Sung Yeon (School of Energy, Materials, Chemical Engineering, Korea University of Technology and Education) ;
  • Kang, Shin Hye (School of Energy, Materials, Chemical Engineering, Korea University of Technology and Education) ;
  • Cho, Ur Ryong (School of Energy, Materials, Chemical Engineering, Korea University of Technology and Education)
  • Received : 2017.02.02
  • Accepted : 2017.02.20
  • Published : 2017.03.31

Abstract

The optimum mixing conditions of silica and silane containing rubber composites were evaluated by investigating the properties of rubber composites prepared with a silica composition of 10, 20, 40, 60, and 80 g, respectively. The crosslinking rate decreased with increasing silica content, with he promoters being adsorbed on the silica surface with in the rubber composite. As a result, the increase in crosslinking time resulted in the destruction of the silica structure. The increase of the bound rubber content due to the destruction of the silica structure inhibited the chain motion of the polymer molecules and reduced the cohesion of the silica itself. Finally, the increase of silica content showed the increase of hardness, tensile strength, and storage modulus of rubber composites.

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