白炭黑/SSBR复合材料的界面及硫化胶性能研究

研究SSBR相对分子质量和结构对白炭黑补强SSBR材料的界面和硫化胶性能的影响。结果表明，SSBR相对分子质量越大、分子链越长，结合橡胶含量越大；随结合橡胶含量增大，填料的网络化程度降低，填料分散均匀，填料与基体界面结合充分，硫化胶物理性能好；复合材料的耐磨性能与混炼胶中结合橡胶含量无直接对应关系，填料与基体界面结合充分则耐磨性能好。;The influence of molecular weight and structure of SSBR on the interface and physical properties of silica/SSBR composite was investigated.The results showed that the content of bound rubber increased as the molecular weight and molecular chain length increased；when the bound rubber content increased，the filler-network was weakened，filler distribution was improved，interaction between filler and rubber was enhanced，and the physical properties of vulcanizate were improved；the abrasive resistance of composite didnt show direct relationship to the content of bound rubber，and the abrasive resistance was increased as the interaction between filler and rubber was enhanced