纳米填料/橡胶体系在贮存中的结构形态变化 Ⅱ.结构变化的影响因素及其对性能的影响  

Change of structure and morphology of nanofiller/rubber system during storage period Ⅱ. Factors and their influences on properties

作　　者：林桂[1] 吴友平[1] 张秀娟[1] 钱燕超[1] 贾清秀[1] 张立群[1] 

机构地区：[1]北京化工大学北京市新型高分子材料制备与成型加工重点实验室,北京100029

出　　处：《合成橡胶工业》2005年第1期1-7,共7页China Synthetic Rubber Industry

基　　金：国家自然科学基金资助项目(50303002);教育部博士点基金资助项目(20020010004);北京市自然科学基金重点资助项目(2031001)

摘　　要：综述了纳米填料 /橡胶复合体系在熔融态或高弹态贮存停放过程中 ,影响其结构形态变化的因素 ,以及贮存停放对复合体系流变性能、物理机械性能和导电性能的影响 ,并评述了相关的理论模型。纳米填料 /橡胶复合体系在熔融贮存过程中的结构变化主要受橡胶的黏度、填料特性及其用量、填料与橡胶之间的相互作用以及加工性能的影响。填料网络结构的絮凝程度强化使复合体系流变性能、动态力学性能降低 ,但导电性能提高。相关的填料聚集动力学和填料絮凝模型大部分是唯象模型。Three main aspects about nanofiller-filled polymer in the static melt state during storage period were particularly reviewed, including the factors which mainly influenced the change of the filler-filler interactions and the filler-polymer interactions,the effects on the physical and mechanical properties such as the rheology, mechanical properties and conductivity properties,the models for the flocculation of filler networks of nanoparticles-filled polymer. The viscosity of the polymer,the loading and characteristic of the nanoparticles, the nanoparticles-polymer interactions and the processing technique were the main factors which determined the microstructure changing of the composites in the static melt state. The flocculation of the filler decreased the rheology and the dynamic mechanical properties, but increased the conductivity of the nanoparticles-filled polymers. Most of the models for the flocculation of the fillers were phenomenological.

关 键 词：纳米填料 橡胶 复合 相互作用 结构 形态 

分 类 号：TQ330.11[化学工程—橡胶工业]