王红兴,孟家光,王彦杰,陈伟
WANG Hong-xing,MENG Jia-guang,WANG Yan-jie,CHEN Wei

• 1:西安工程大学纺织科学与工程学院

摘要(Abstract)：

采用N-甲基吗啉-N-氧化物(NMMO)对废旧涤棉织物中的棉纤维进行溶解回收,通过正交试验优化溶解工艺条件,并利用静电纺丝技术制备聚乙烯醇(PVA)/再生纤维素纳米纤维膜。试验发现影响棉纤维溶解效果的主次因素关系为:溶解温度>NMMO的质量分数>二甲基亚砜(DMSO)溶胀时间>溶质(棉纤维)与溶剂(NMMO水溶液)质量比。溶解的最优条件是:反应温度95℃,NMMO的质量分数为87%,DMSO溶胀90 min,溶质与溶剂质量比为3∶100。此时用扫描电镜观察到PVA/再生纤维素纳米纤维膜中纳米的直径比较均匀。
N-methylmorpholine-N-oxide(NMMO) was used to dissolve and recover the cotton fibers in waste polyester/cotton fabrics.Orthogonal experimental method was used to optimize the dissolution process conditions.The polyvinyl alcohol(PVA)/regenerated cellulose nanofiber membrane was prepared by electro spinning.The results show that the primary and secondary factors affecting the dissolution of cotton fiber are: dissolution temperature> mass fraction of NMMO> swelling time of dimethyl sulfoxide(DMSO)> solute(cotton fibers) to solvent(NMMO-H_2O solution) ratio.The optimum conditions for the dissolution are as follows: reaction temperature 95 ℃,mass fraction of NMMO 87%,swelling time of DMSO 90 min,solute to solvent ratio 3∶100.Scanning electron microscopy result shows that the fiber diameter of nanofiber membrane is relatively uniform.

关键词(KeyWords)： 棉纤维;聚乙烯醇纤维;静电纺丝;溶解回收;正交试验
cotton fiber;PVA fiber;electro spinning;dissolution and recovery;orthogonal experimental method

Abstract:

Keywords:

基金项目(Foundation): 国家支撑计划项目(2012BAF13B03);; 陕西省科技厅2014年科技创新工程计划项目(2014SZ13-Z01);; 好运来创新研发基金(2014KJ-048)

作者(Author): 王红兴,孟家光,王彦杰,陈伟
WANG Hong-xing,MENG Jia-guang,WANG Yan-jie,CHEN Wei

DOI: 10.16090/j.cnki.hcxw.2018.07.007

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