熔纺双组分调温聚丙烯纤维  

Melt-spun bicomponent thermo-regulated polypropylene fibers

作　　者：韩娜[1,2] 张荣 刘理璋 许超杰 张兴祥[1,2] 

机构地区：[1]改性与功能纤维天津市重点实验室,天津300387 [2]天津工业大学功能纤维研究所,天津300387 [3]生装备有限公司技术中心,湖北襄阳441003 [4]盈保纤维科技(仁化)有限公司,广东韶关512334

出　　处：《纺织学报》2012年第9期6-9,共4页Journal of Textile Research

基　　金：航空科学基金资助项目(2009ZF10008);国家自然科学基金资助项目(50573058)

摘　　要：以正构烷烃和聚合物相变材料为芯层,聚丙烯为纤维的皮层,采用双组分熔融复合熔融纺丝法制备储热调温纤维。采用扫描电子显微镜(SEM)、差示扫描量热仪(DSC)和单纤维电子强力仪等观察纤维的形貌,研究纤维的热力学性能和力学性能。结果表明:纤维的结构致密,具有明显的皮芯分界,相变材料质量分数为28%时,纤维的热焓可达到36～40 J/g,对纤维进行2.75倍的牵伸后处理,断裂强度和伸长率分别为2.3 cN/dtex和29%,可满足纺织服装的应用要求。Bicomponent thermo-regulated fiber was fabricated by melt-spinning using n-alkanes and polymeric phase change material as the core and polypropylene as the shell.The surface morphology,thermal behavior and mechanical properties of the fiber were examined using scanning electron microscope（SEM）,differential scanning calorimeter（DSC） and tensile strength tester.The results show that the fiber has a compact structure with obvious core-shell boundary.The heat enthalpy is about 36-40 J/g when the mass fraction of the phase change material is 28%.The strength and elongation at break of the fiber are 2.3 cN/dtex and 29%,respectively,as the drawn ratio is up to 2.75.The mechanical properties can satisfy the applied requirements of textile and apparels.

关 键 词：双组分 储热调温纤维 熔融纺丝 聚合相变材料 

分 类 号：TQ342.62[化学工程—化纤工业]