摘要
利用氯化锂/N,N-二甲基乙酰胺(LiCl/DMAc)溶剂体系先后溶解竹纤维素和聚丙烯腈(PAN),配成纺丝液,采用静电纺丝技术成功制备出直径为130 nm^450 nm的竹纤维素/PAN超细纤维。通过研究竹纤维素/PAN超细纤维平均直径与纺丝参数关系发现,该超细纤维的平均直径随着竹纤维素浓度的增大而增大,随纺丝电压的增大而减小,随纺丝距离的增大而减小,且最佳纺丝参数是竹纤维素质量分数为0.8%,纺丝电压为16 kV,接收距离为14 cm。采用该复合纤维制成夹心净化材料并做过滤测试发现,其过滤效率随着夹心层中超细纤维的膜密度和浊液的起始浊度值增加而增大,最大过滤效率可达99.5%。
The bamboo cellulose and polyacrylonitrile （PAN） were dissolved by the solvent of lithium chloride （LiCl）/N,N-dimethyl acetamide （DMAc）. The bamboo cellulose/PAN ultrafine fibers with a diameter from 130nm to 450nm were prepared by electrospinning technique. The results show that the average diameter of the ultrafine composite fibers increases with the increase of the bamboo cellulose concentration, decreases with the increase of spinning voltage and receiving distance respectively. The optimal spinning parameters are as follows, the bamboo cellulose mass fraction of 0.8%, the spinning voltage of 16 kV, the receiving distance of 14 cm. The filtration result of sandwich structure purification material shows that the filtration efficiency increases with the increase of the area density of the composite fibers and the initial turbidity of the solution, and the maximum of filtration efficiency reaches 99.5%.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2014年第3期181-184,190,共5页
Polymer Materials Science & Engineering
关键词
静电纺丝
竹纤维
应用
纳米材料
夹心净化材料
electrospinning
bamboo fiber
application
nanomaterial
sandwich structure purification material
