The effect of microspheres on the rheological behaviour of PP/PP-g-MAH composite system
Polypropylene (PP) and maleic anhydride grafted polypropylene (PP-g-MAH) with the addition of the nano-particles (St/MMA/BA), which could solve the dispersion problem, were prepared by melt blending to improve the dyeability of composition fibres. The rheological behaviour of PP/PP-g-MAH and the blends were investigated by rotational rheometer. The effects of shear rate, shear stress and temperature on the flow of the blends and PP/PP-g-MAH were discussed. The non-Newtonian indexes and the activation energies of viscous flow were obtained. The results indicated that the melt apparent viscosity was decreased with the addition of the nano-particles, and the melt apparent viscosity was also decreased with the increase of shear rate and shear stress. The adding of nano-particles could reduce melt viscosity for melt-spinning even at comparatively lower temperature.
ZHANG Chao YAN Huizhi ZHANG Yu CHEN Yanmo WU Wenhua
College of Material Science and Engineering, Donghua University, Shanghai 201620, P.R.China State Key Laboratory for Modification of Chemical Fibres and Polymer Materials,Donghua Universit
国际会议
2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)
上海
英文
1132-1135
2009-10-21（万方平台首次上网日期，不代表论文的发表时间）