Thermal and Dynamic Mechanical Properties of LPPS/HPPS blends
Blends of linear poly (phenylene sulfide) (LPPS) and hyperbranched poly (phenylene sulfide) (HPPS) with various compositions were prepared using an internal mixer at 300℃ and 75rpm for 10 min. The thermal and dynamic mechanical properties of LPPS/HPPS blends were investigated by means of differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). The results show that the melting point, crystallization temperature and crystalline growth rate of the blends decrease; while crystalline activation energy increases with the increasing of HPPS content. DMA shows higher value of storage modulus (E) and glass transition temperature (Tg). There may be some strong interactions between HPPS and LPPS, which hinder the motion of LPPS chains.
poly (phenylene sulfide) hyperbranched polymer composite thermal property
OUYANG Fen ZHANG Yu YAN Bo CHEN Yanmo ZHU Meifang
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, P. R. China College of Material Science and Engineering, Donghua University, Shanghai 201620, P. R. China
国际会议
上海
英文
428-430
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）