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将热塑性树脂聚砜与４种自制的热致液晶聚合物熔融共混，制备原位复合材料，采用了３种制样方法：①毛细管直接法；②单螺杆直接挤出法；③先用混合机混合均匀，再用单螺杆挤出。研究了液晶聚合物的分子结构、分子量、含量以及加工方法对原位复合材料微观形态的影响。结果发现，液晶聚合物分子链的刚性越大，其取向成纤性越好；对同一液晶聚合物而言，其分子量越大，则成纤性越好；在其它条件相同时，液晶聚合物含量越少，则所形成的纤维直径越细；３种制样方法中，第三法最佳，用此法可得分布均匀且取向性好的微纤。
The thermoplastic resin polysulfone and 4 kinds of self-made thermotropic liquid crystal polymer were melt blended to prepare in-situ composite materials, using three sample preparation methods: ① capillary direct method; ② single-screw direct extrusion; ③ first mixed Mixing machine, then single-screw extrusion. The influence of molecular structure, molecular weight, content and processing method of liquid crystal polymer on the microstructure of in-situ composites was studied. The results show that the greater the rigidity of the molecular chain of the liquid crystal polymer, the better the orientation of the liquid crystal polymer; the larger the molecular weight of the same liquid crystal polymer is, the better the fiber-forming property is. When other conditions are the same, the liquid crystal polymer The smaller the content, the finer the diameter of the formed fibers. The third method is the best among the three sample preparation methods. Microfibers with uniform distribution and good orientation can be obtained by this method.