采用水相沉淀法制备了含0%～25%(质量分数,下同)相变材料微胶囊(MicroPCMs)的丙烯腈/丙烯酸甲酯(AN/MA,投料比85/15)共聚物,将聚合产物熔融挤出,制备了系列丙烯腈基初生纤维.采用红外光谱(FT-IR)、热重分析(DTG)和扫描电镜(SEM)等方法对初生纤维的结构与性能进行了分析.结果表明,随着MicroPCMs含量的增加,力学性能有所下降.当MicroPCMs含量为25%时,纤维的结晶焓可达25 J/g.综合分析热力学和力学性能,MicroPCMs含量为20%时,纤维的力学性能可达到服用要求,同时调温性能良好.
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