中文摘要：

采用淀粉水溶液与丁苯胶乳共混共凝聚的方法制备淀粉／SBR复合材料，并对其结构和性能进行研究。结果表明，与SBR相比，淀粉／SBR复合材料的焦烧时间缩短，硫化速度减慢，且随着淀粉用量的增大，复合材料的ML和MH增大，邵尔A型硬度、300％定伸应力、拉伸强度和撕裂强度显著增大；淀粉与SBR形成较好的界面结合，淀粉在SBR基体中分散粒径较小；随着淀粉用量的增大，复合材料的剪切储能模量增大，高温拉伸储能模量逐渐增大，只有一个玻璃化温度，不具有两相结构的特征。

英文摘要：

A starch/SBR composite was prepared by blending and co-coagulation of water solution of starch and SBR latex,and its structure and properties were investigated. The results showed that in comparison to SBR,the starch/SBR composite gave shorter scorch time and lower curing rate,and as the starch loading increased,ML and MH of the composite increased,and its Shore A hardness, modulus at 300%, tensile strength and tear strength increased significantly; a better boundary bonding was formed between starch and SBR,and the starch with smaller particle size was dispersed in SBR matrix;as the starch loading increased,the shear storage modulus of the composite increased and the tensile storage modulus at high temperature increased gradually;and the composite had only one Tg temperature indicating no characteristics of two-phase structure.