Payne Effect and Weak Overshoot in Rubber Nanocomposites  

作　　者：Zhi-Yun Li Yi-Hu Song Qiang Zheng 

机构地区：[1]MOE Key Laboratory of Macromolecular Synthesis and Functionalization,Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027,China

出　　处：《Chinese Journal of Polymer Science》2022年第1期85-92,共8页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.U1908221,51873190 and 51790503);the Fundamental Research Funds for the Central Universities(No.2020XZZX002-08)。

摘　　要：Payne effect and its associated weak overshoot are of importance for understanding and regulating the softening of rubber nanocomposites under large amplitude oscillations.Herein,Payne effect in diverse filled vulcanizates is investigated for generalizing the common characteristics.Master curves of strain amplitude dependent storage modulus are created with respect to microscopic strain amplitude of the matrix,revealing a matrix-dominated elastic nonlinearity being independent of type and dispersity of filler,crosslinking density and sol fraction of matrix and filler-rubber interfacial interactions.However,carbonaceous fillers with higher affinity to the rubber matrices yield lower strain amplification and higher overshoot behavior in comparison with siliceous silica.The investigation would be illuminating for preparing rubber nanocomposites with optimized reinforcement and softening performances.

关 键 词：Vulcanizate nanocomposites Payne effect Weak overshoot 

分 类 号：TB33[一般工业技术—材料科学与工程]