剪切流动对聚合物共混物相行为影响的研究进展

Progresses in Research of the Influences of Shear Flow on the Phase Behavior of Polymer Blends

从热力学理论、实验方法以及影响因素等 3个主要方面 ,综述了自 2 0世纪 80年代以来开展的剪切流动对聚合物共混物相行为影响的研究情况 ;阐述了目前应用较为广泛的热力学理论 ;着重介绍了各种先进的在线检测方法的原理、优缺点及其应用 ;较为详细地总结了聚合物共混物相行为对剪切速率、剪切应力、温度以及组成的依赖关系 ;指出了存在的一些问题 ;展望了该领域发展的趋势和方向。

The research progresses of inflluence of the shear flow on the phase behavior of polymer blends are reviewed in three aspects: thermodynamic theory, experimental methods and influencing factors on the miscibility of polymer blends under shear flow field. The thermodynamic theory which is wildly used to predict the phase behavior of polymer blends under shear flow field. The fundamentals, merits, drawbacks and applications of various in-situ measuring methods were stressed. The dependence of the phase behavior of polymer blends on shear rate, shear stress, temperature and fraction of components was summed up in detail. The existed problems and trends in this research field are discussed briefly.