Study on Dynamic Mechanical Properties of Short Fiber Reinforced Carboxylated Nitrile Rubber
Samples with different weight fraction of short carbon fiber (SCF) or Kevlar-pulp (KP) filled carboxylated nitrile rubber (XNBR) were prepared in this study. Dynamic mechanical properties denoted by storage modulus (E) and loss tangent (tanδ) were studied through dynamic mechanical analysis (DMA). Results show that by incorporation of fibers, the storage modulus above glass transition temperature (T<,g>) of the matrix was increased and the maximum value of tan 6 peak (tan δmax) was decreased remarkably while the glass transition temperature of the matrix was only slightly increased. Compared with XNBR/SCF composites, the increase of E and decrease of tan δ max value were much more obvious due to better fiber-matrix interfacial adhesion. The surface morphologies of the fibers and the tensile fracture surface morphologies of the composites were investigated by scanning electron microscopy (SEM) to conform this and further discuss the mechanism of the filling effect of short fibers on the dynamic mechanical properties of XNBR.
Dynamic mechanical property Carboxylated nitrile rubber (XNBR) Short carbon fiber Kevlar-pulp Fiber-matrix interfacial adhesion
LIU Qixia YAN Xiong DING Xinbo
College of Textiles, Donghua University, Shanghai 201620, P. R China
国际会议
上海
英文
347-350
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）