中空桔瓣型高收缩聚酯/聚酰胺6超细纤维非织造布的制备及其性能  

Preparation and properties of hollow pie-segmented high shrinkage polyester/polyamide 6 microfiber nonwovens

作　　者：朵永超 钱晓明[1] 郭寻 高龙飞 白赫 赵宝宝 DUO Yongchao;QIAN Xiaoming;GUO Xun;GAO Longfei;BAI He;ZHAO Baobao(School of Textiles Science and Engineering, Tiangong University, Tianjin 300387, China;School of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, China;School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China)

机构地区：[1]天津工业大学纺织科学与工程学院,天津300387 [2]天津师范大学物理与材料科学学院,天津300387 [3]安徽工程大学纺织服装学院,安徽芜湖241000

出　　处：《纺织学报》2022年第2期98-104,共7页Journal of Textile Research

基　　金：国家自然科学基金项目(U1607117);天津市应用基础与前沿技术计划项目(16JCZDJC36400);天津市科技计划项目(17PTSYJC00150)。

摘　　要：针对中空桔瓣型超细纤维非织造布开纤率低、悬垂性差的问题,以高收缩聚酯(HSPET)、聚酰胺(PA6)为原料,通过双组分纺粘水刺技术制备了不同面密度的HSPET/PA6超细纤维非织造布,分析了热收缩处理对非织造布开纤率、悬垂性、柔软度、透气性、过滤效率以及力学性能的影响。结果表明:当水刺压力一定时,与PET/PA6非织造布相比,HSPET/PA6非织造布的开纤率提高48.1%;经热收缩处理后,HSPET/PA6非织造布收缩率可达到20.31%,热收缩可促进纤维裂离,使非织造布内部结构相对蓬松,改善其悬垂性;HSPET/PA6非织造布的过滤效率随着开纤率的增加而增加,当其面密度为140 g/m^(2)时,对于粒径大于或等于1.5μm颗粒的过滤效率接近于100%,但经热收缩处理后HSPET/PA6非织造布过滤效率有所下降。Aiming at the problems of low fiber splitting rate and poor drapability of hollow pie-segmented microfiber nonwoven,high shrinkage polyester/polyamide 6 microfiber nonwovens with different areal densities were prepared by bicomponent spunbond spunlace technology with high shrinkage polyester(HSPET)and polyamide(PA6)as raw materials.The effect of heat shrinkage treatment on fiber splitting rate,drapability,softness,air permeability,filtration efficiency and mechanical properties of the nonwovens were analyzed.The results show that when the spunlace pressure was constant,the fiber splitting rate of the HSPET/PA6 nonwoven fabric is increased by 48.1%compared with that of PET/PA6 nonwoven.After heat shrinkage treatment,the shrinkage rate of HSPET/PA6 nonwoven reaches 20.31%.Heat shrinkage promotes the fiber splitting,resulting in a relatively fluffy internal structure of the nonwoven,offering drapability improvement.The filtration efficiency of HSPET/PA6 nonwovens was increased as the increased fiber splitting rate.The filtration efficiency of HSPET/PA6 nonwovens was close to 100%for particles with size greater than or equal to 1.5μm when the areal density of the nonwoven was 140 g/m^(2),but the filtration efficiency of HSPET/PA6 nonwovens was reduced after heat shrinkage treatment.

关 键 词：高收缩聚酯/聚酰胺6超细纤维 中空桔瓣型纤维 纺粘水刺技术 热收缩 非织造布 

分 类 号：TS174.8[轻工技术与工程—纺织材料与纺织品设计]