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.

对Liu( 1 981 )提出的动态速率方程加以修正 ,用修正的速率方程来研究振动剪切场下缠结密度的变化情况 ,给出其理论分析 ,同时也分析了缠结密度对熔体粘度的影

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

假设聚合物熔体的缠结网络形变是非仿射的 ,运用瞬态网络结构原理 ,采用在本课题第一部分[1] 中所建立的动态速率方程 ,并对上随体Maxwell本构方程加以修正来建立一个非仿射网络结构模型 ,利用这一模型来研究振动剪切作用下LDPE熔体的流变行为。