Aromatic polyamide fibre and film is made by forming a prepolymer by condensation while dissolved in an amide solvent containing inorganic salt solubiliser, extruding the resultant prepolymer dope into a precipitating solvent containing a polymerisation accelerator and stretching the extruded product while completing the polymerisation. The resultant fibre or film does not include crystal defect layers and has good strength and resistance to friction.
芳香族聚酰胺纤维和薄膜是通过以下方法制成的:将预聚物溶解在含有
无机盐增溶剂的酰胺溶剂中,通过缩合形成预聚物;将得到的预聚物涂料挤入含有聚合
促进剂的沉淀溶剂中;在完成聚合的同时拉伸挤出产品。 得到的纤维或薄膜不含晶体缺陷层,具有良好的强度和耐摩擦性。