Improvement of Mechanical Interfacial Properties of Silica/Rubber Composites by Silane Coupling Agent Treatment

실란 커플링제를 이용한 실리카/고무 복합재료의 기계적 계면 물성의 향상

  • Park, Soo-Jin (Advanced Materials Dvision, Korea Research Institute of Chemical Technology) ;
  • Cho, Ki-Sook (Advanced Materials Dvision, Korea Research Institute of Chemical Technolog) ;
  • Lee, Jae-Rock (Advanced Materials Dvision, Korea Research Institute of Chemical Technology)
  • Published : 2001.10.01

Abstract

Surface-modified silica holds considerable promise in the development of advanced materials for good mechanical properties and stability. In this work, the surface and mechanical interfacial properties of silicas treated with silane coupling agents, such as Y-methacryloxy propyl trimethoxy silane (MPS). Y-glycidoxy propyl trimethoxy silane (GPS), and Y-mercapto propyl trimethoxy silane (MCPS), are investigated. The effect of silane surface treatments of silica on the surface properties and surface energetics are studied in terms of surface functional values and contact angle measurements. And their mechanical interfacial properties of the silica/rubber composites are studied by the composite tearing energy ($G_{IIIC}$). As a result. the mechanical interfacial properties are improved in the case of silane-treated composites compared with untreated one. It reveals that the functional groups on silica surface by silane surface treatments play an important role in improving the degree of adhesion at interfaces in a silica-filled rubber system.