摘要
选取聚丙烯腈(PAN)和氧化石墨烯(GO)共混复合,通过湿法纺丝工艺技术,制备不同氧化石墨烯固含量的聚丙烯腈/氧化石墨烯复合纤维。基于非溶剂致相分离理论,以二甲基甲酰胺(DMF)/水混合体系作为凝固浴,非溶剂扩散到聚丙烯腈纤维中使得聚丙烯腈快速凝固。本文通过SEM、FTIR对复合纤维形态和结构进行了表征。DMA测试结果表明,GO固含量为1wt.%的复合纤维拥有最好的热机械性能,储能模量达到5.5GPa,损耗因子tanδ为0.139。
By adopting polyacrylonitrile(PAN) and graphene oxide(GO),polyacrylonitrile/graphene oxide composite fibers with different contents of solid grapheme oxide were prepared by wet-spinning process. Based on nonsolvent induced phase separation theory,N-dimethyl formamide(DMF)/water mixture system was employed as coagulation bath,non-solvent(water) was diffused into PAN fibers and led to a quick PAN solidification. The morphology and structure of composite fibers were characterized via SEM and FTIR. The results of dynamic thermomechanical analysis(DMA) indicated that when the solid content of GO reached 1 wt. %,the composite fiber showed the best thermal mechanical property with storage modulus 5. 5 GPa and loss tangent 0. 139.
作者
赵壬海
田明伟
曲丽君
朱士凤
ZHAO Ren-hai;TIAN Ming-wei;QU Li-jun;ZHU Shi-feng(2. College of Textile & Clothing, Qingdao University, Qingdao 266071;Cultivation Base of State Key Laboratory of New Fiber Materials and Modem Textile, Qingdao University, Qingdao, 266072;Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles, Qingdao University, Qingdao 266071)
出处
《纺织科学与工程学报》
CAS
2018年第2期86-91,共6页
Journal of Textile Science & Engineering
基金
国家自然科学基金项目(51273097,51306095,11402155)
中国博士后科学基金(2014M561887)
中国博士后科学基金特别资助(2015T80697)
青岛市应用基础研究计划项目(14-2-4-1-JCH,15-9-1-41-JCH)
青岛市博士后应用基础研究项目(2015032)
关键词
氧化石墨烯
纤维
湿法纺丝
机械性能
热性能
graphene oxide fibers wet-spinning mechanical properties thermal property