大多数聚合物共混体系是不相容的,它们形成多相体系,其分散相可能是球状、椭球状、纤状或层状。这些形态特征的形成依赖于不同的加工条件,其影响因素很多,而这些形态又制约着最终制品的性能。聚合物共混物的形态、加工与性能之间的密切关系使得研究在不同的加工条件下共混物微结构的形成变得十分重要。 近年来含热致液晶聚合物(LCP)的共混物引起了许多研究者的兴趣。原因之一在于LCP能在基体树脂中形成择优取向的微纤而起增强作用。Weiss等发现,LCP分散相能在 Most polymer blends are incompatible. They form a heterogeneous system. The disperse phase may be spherical, ellipsoid, fibrillar or lamellar. The formation of these morphological features depends on different processing conditions, many of its influencing factors, and these forms and constraints the performance of the final product. The close relationship between morphology, processing and properties of polymer blends makes it very important to study the microstructure formation of blends under different processing conditions. In recent years, a blend of thermotropic liquid crystal polymers (LCPs) has attracted the interest of many researchers. One of the reasons is that LCP can enhance the formation of preferred orientation of microfibers in the matrix resin. Weiss et al found that LCP disperse phase can be