nibbling shear

Kinetics rate equation of polymer melt in oscillatory shear force field using the revised Liu model (1981) change influences of the entanglement density and the influence of the viscosity on oscillatory shear force field were analysed.

對Liu( 1 981 )提出的動態速率方程加以修正 ,用修正的速率方程來研究振動剪切場下纏結密度的變化情況 ,給出其理論分析 ,同時也分析了纏結密度對熔體粘度的影

Revised upper convected Maxwell constitutive equation was employed to establish a constitutive model for studying the rheological behavior of LDPE melts in oscillatory shear.

假設聚合物熔體的纏結網絡形變是非仿射的 ,運用瞬態網絡結構原理 ,采用在本課題第一部分[1] 中所建立的動態速率方程 ,并對上隨體Maxwell本構方程加以修正來建立一個非仿射網絡結構模型 ,利用這一模型來研究振動剪切作用下LDPE熔體的流變行為。