溶喷法制备纤维素非织造布  

Preparation of Fiber Nonwovens Fabrics by Solution-Blown

作　　者：李春花[1,2] 徐纪刚[2] 程春祖[2] 韩晖[2] 王荣民[1] 

机构地区：[1]西北师范大学高分子研究所生态环境相关高分子材料教育部重点实验室,甘肃兰州730070 [2]中国纺织科学研究院生物源纤维制造技术国家重点实验室,北京100025

出　　处：《高分子材料科学与工程》2015年第2期165-170,共6页Polymer Materials Science & Engineering

基　　金：国家973项目(2012CB724610);十二五科技支撑计划(2011BAE11B02);国家自然科学基金(21364012;21263024)

摘　　要：将纤维素浆粕溶解于N-甲基吗啉-N-氧化物(NMMO)中,并采用溶喷法,制备了一种全新的溶喷纤维素非织造布。考察了制备工艺对非织造布物理性能的影响,认为制备过程中模头温度和热风风速和温度是影响纤维直径和非织造布拉伸性能的主要因素。对产品的微观形貌、表观密度和拉伸性能等进行了测试。结果表明,非织造布的纤维网络结构完整,缺陷较少;非织造布的纤维直径3~20μm,表观密度122~180 g/cm3,弹性模量1.25~9.15 MPa,物理性能较好。Dissolving cellulose pulp in N-methyl morpholine-N-oxide(NMMO),solution-blowing fiber nonwovens fabrics were prepared by melt-blown technology. The effects of the preparation technology for physical properties of nonwoven fabrics were examined. The die temperature and hot air speed and temperature are the main factors on fiber diameter and tensile properties of nonwoven fabrics in preparation process. The microstructure,apparent density and tensile properties of the product were tested. The results show that this type of nonwovens has relatively complete fiber network structure and less defect; the nonwoven fiber diameter is 3 ~ 20 μm,apparent density 122 ~ 180 g/cm3,elastic modulus1. 25 ~ 9. 15 MPa.

关 键 词：溶喷 熔喷 纤维素 非织造布 N-甲基吗啉-N-氧化物 

分 类 号：TS174[轻工技术与工程—纺织材料与纺织品设计]