摘要
研究了多官能团引发剂一步法合成的溶聚丁苯橡胶 (SSBR)的结构及偶联程度对其物理性能和动态力学性能的影响 ,并与日本合成橡胶公司的SL5 5 2进行比较。试验结果表明 ,随着偶联程度的增大 ,SSBR的强伸性能提高 ,压缩疲劳温升降低 ,抗湿滑性提高 ,且偶联程度为 60 %的SSBR的物理性能与SL5 5 2相近。偶联程度的提高可使胶料的动态粘弹性降低。为了保证胶料达到优异的低生热特性和良好加工性能的综合平衡 ,偶联程度以 60
The influence of the structure and coupling degree for a test SSBR synthesized with one step method and multi functional initiator on the physical properties and dynamic mechanical properties of its vulcanizate was investigated by using SL552 made by JSR as control polymer.The test results showed that as the coupling degree of test SSBR increased,the tensile strength and wet traction improved and the temperature rise from compression fatigue decreased;and the SSBR with 60% coupling degree was similar to SL552 in terms of physical properties.The increase of coupling degree resulted in the decrease of dynamic visco elasticity for rubber compound.It was found that 60% coupling degree was suitable for the rubber compound to obtain the balanced low heat build up and good processibility.
出处
《橡胶工业》
CAS
北大核心
2002年第11期645-649,共5页
China Rubber Industry
基金
北京市自然科学基金资助项目 (2 982 0 15 )
