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近年来出现了一类高分子共混物,其组分之一是分子链呈刚性棒状的热致液晶聚合物这类共混物能用挤塑和注塑等加工手段进行熔融共混与成型.而热致液晶聚合物在共混物熔体中受剪切流动场的作用於热塑性树脂基体中就地形成沿流动方向取向排列、具有增强作用的微纤,以致共混物具有短纤维增强塑料的结构特征.这类共混物又称为原位复合材料(in-situ composites).至今已见之于文献报道的研究多是采用商品热致液晶聚合物,配以多种热塑性树脂,来研究它们共混物的加工性能和微结构的关系,所得规律不尽一致,其中一些重要因素也未予以考虑.本工作是对一种成纤性很强的含萘环的芳香共聚酯与聚砜的共混物,从流变
In recent years there has been a class of polymer blends, one of its components is a rigid rod-shaped thermotropic liquid crystal polymer blends such blends can be extruded and injection molding and other processing means for melt blending and molding. While the thermotropic liquid crystalline polymer is subjected to a shear flow field in the melt of the blend in the thermoplastic resin matrix to form in situ microfibers aligned in the flow direction with reinforcement such that the blend has a short fiber reinforced plastic Of the structural characteristics of these blends, also known as in-situ composites (in-situ composites.) So far has been seen in the literature reported that the study is mostly using commercial thermotropic liquid crystal polymer, with a variety of thermoplastic resins, to The relationship between the processing properties and the microstructure of the blends was studied, the obtained rules were not consistent and some of the important factors were not considered.This work is about a kind of aromatic copolyester with naphthalene ring Polysulfone blends, from rheological