聚对苯二甲酸丁二醇酯多孔纤维的制备及性能表征  

Preparation and Characterization of Poly( butylene terephthalate) Porous Fiber

作　　者：邵凤姣[1] 贾清秀[1] 张玉芳[1] 

机构地区：[1]北京服装学院材料科学与工程学院,北京100029

出　　处：《高分子材料科学与工程》2016年第6期148-153,共6页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(51273005);北京市教委科技发展计划重点项目暨北京自然科学基金资助重点项目(KZ201110012016);北京市教委青年拔尖人才项目(CIT&TCD201404023)

摘　　要：以聚对苯二甲酸丁二醇酯(PBT)、聚丙烯(PP)为原料,采用熔融纺丝法制备出PBT/PP共混海岛纤维,用二甲苯溶解剥离基体相PP,制得PBT多孔纤维。通过差示扫描量热分析、扫描电镜、X射线衍射和比表面积及孔径分析等测试,研究了共混纤维及多孔纤维的结构与性能。结果表明,当PBT和PP质量比为70/30时,共混纤维的相容性最好,且溶除后的多孔纤维孔容较大,孔径较小,一致性数值也较大即多孔纤维的尺寸单分散性好;最佳的溶除温度为120℃,时间为40min,浓度为1∶50。The PBT / PP blending island fiber was prepared by melt spinning with raw material of poly（ butylene terephthalate）（ PBT） and polypropylene（ PP）,and the PBT porous fiber was formed in xylene solvent. The structure and properties of the blending fiber and the porous fiber were characterized by DSC,SEM,XRD and specific surface area and pore size. Results show that the compatibility of the blending fiber is the best when the mass ratio of PBT / PP is70 /30. After being dissolved,the porous fiber has bigger pore volume,smaller aperture,larger consistency of numerical namely good monodispersity of porous fibers; and the best dissolving temperature is 120 ℃,time is 40 min,concentration ratio is 1∶ 50.

关 键 词：聚对苯二甲酸丁二醇酯纤维 共混 熔融纺丝 多孔纤维 

分 类 号：TQ342.22[化学工程—化纤工业]