Temperature dependence of creep and recovery behaviours of polymer composites filled with chemically reduced graphene oxide
作者：Xu Wang, Li-Xiu Gong, Long-Cheng Tang, Ke Peng, Yong-Bing Pei, Li Zhao, Lianbin Wu, Jian-Xiong Jiang
關(guān)鍵字：A. Polymer-matrix composites (PMCs) B. Creep C. Analytical modeling D. Electron microscopy
論文來源：期刊
具體來源：Composites: Part A
發(fā)表時(shí)間：2015年
Resistance to time-dependent plastic deformation of polymer composite materials is a crucial require-
ment in their application for long-term durability and reliability. Herein, creep and recovery behaviors
of polystyrene (PS) composites filled with various loadings of chemically reduced graphene oxide (CRGO)
were investigated at different environment temperatures. As expected, incorporation of CRGO into PS
polymer increases the thermal stability, glass transition temperature and elastic modulus, although the
tensile strength of the composite has a slight decrease. It was found that the creep deformation and strain
rate of PS polymer reduce with decreasing temperature and with increasing loading of CRGO. A signifi-
cant improvement in the recovered strain of PS was also obtained after the presence of CRGO. Based
on the analytical modelings (Burger’s model and Weibull distribution function) and experimental results,
the role of CRGO on improving the creep and recovery performance of thermoplastics was proposed and
discussed.