关键词: 绢云母;丁苯橡胶;表面改性;补强;力学性能

Abstract: The base material is flaky sericite powder, which was modified with γ-Mercaptopropyltriethoxysilane. The modification effect was evaluated by the mechanical properties of composites. The result shows that the suitable surface modification conditions are modifier of 2%, modification temperature of 90 ℃,modification time of 20 min,and under this condition, the Sericite/SBR composites has excellent mechanical properties. FTIR analysis shows that the function way between silane coupling agent and the surface of sericite is chemical bonding, SEM observed that modified sericite evenly dispersed in rubber matrix, and forming excellent interaction with rubber. It proved that modified sericite could efficient enhance reinforcement effect of SBR.

Key words: sericite;SBR;surface modification;reinforcement;mechanical property