摘要
以硅烷偶联剂Si 69改性白炭黑,制备了溶聚丁苯橡胶(SSBR)/顺丁橡胶(BR)/白炭黑复合材料,考察了密炼工艺和橡胶配比对复合材料性能的影响,研究了白炭黑在橡胶基体中的分散性。结果表明,采用合适的密炼工艺可提高白炭黑的硅烷化程度,促进橡胶基体与白炭黑的相互作用,可改善SSBR/BR/白炭黑复合材料的抗湿滑性能和拉伸强度;采用相同密炼工艺,当SSBR/BR(质量比)由75/25增大至103/25时,SSBR/BR/白炭黑复合材料的拉伸强度变化不大,而回弹性有所提高,压缩生热明显下降,抗湿滑性能提高了26%,滚动阻力下降了21%。
Silica was modified with silane cou- pling agent Si 69, and the solution polymerized sty- rene-butadiene rubber （ SSBR ）/cis-1, 4-polybuta- diene rubber （BR）/silica composites were pre- pared. The effects of different mixing process and rubber blending ratio on the properties of SSBR/BR/ silica composites were investigated and the disper- sion of silica in the rubber matrix was also studied. The results showed that the suitable mixing process could promot the silanized degree of silica and im- prove the interaction of rubber matrix and silica, meanwhile enhance the wet skid resistance and ten- sile strength of the composites. By using the samemixing process, when SSBR/BR （mass ratio） in- creased from 75/25 to 103/25, the tensile strength of the composites had no evident change, while the resilience was improved and the compression heat build-up decreased obviously. The dynamic mechan- ical property was improved greatly, wet skid resist- ance increased by 26% , creased by 21%. and rolling resistance de-
出处
《合成橡胶工业》
CAS
CSCD
北大核心
2017年第3期226-230,共5页
China Synthetic Rubber Industry
关键词
溶聚丁苯橡胶
顺丁橡胶
白炭黑
复合材料
密炼
力学性能
抗湿滑性能
滚动阻力
solution polymerized styrene-butadi-ene rubber
cis-1,4-polybutadiene rubber
silica
composite
mixing
mechanical property
wet skidresistance
roiling resistance
