乳液共沉法制备离子液体改性白炭黑/SBR复合材料的研究

摘要

Using l-butyl-3-methyl-imiazolium hexafluorophosphateCBmim. PF6) modified silica,the modified silica/SBR composites were prepared by latex co-coagulation method, and the curing behavior, physical properties and microstructure of the composites were investigated. The results showed that,the interaction between Bmim. PF6 and silica resulted from hydrogen bond; compared with unmodified silica/SBR composites, modified silica/SBR composites possessed higher crosslink density, and the dispersion of silica in rubber matrix was improved,while the tensile strength,tear strength and wear resistance were increased.%以1-丁基-3-甲基咪唑六氟磷酸盐( Bmim.PF6)离子液对白炭黑进行改性,采用乳液共沉法制备改性白炭黑/SBR复合材料,并对其硫化特性、物理性能和微观结构进行研究.结果表明:Bmim.PF6与白炭黑之间的相互作用为氢键作用；与未改性白炭黑/SBR复合材料相比,改性白炭黑/SBR复合材料的交联密度增大,白炭黑在橡胶基体中的分散性得到改善,拉伸强度、撕裂强度和耐磨性能均明显提高.