摘要
为更好地实现石墨烯纤维在功能性纺织品领域的宏观应用,以一定浓度的氧化石墨溶液为纺丝液,氯化钙溶液为凝固浴,通过湿法纺丝制备氧化石墨纤维,经氢碘酸还原获得石墨烯纤维。采用X射线光电子能谱和透射电子显微镜分别对氧化石墨烯纺丝液的氧化程度和结构形貌进行表征,发现氧化石墨烯的氧化程度高,其碳氧比约为1∶1,并表现出轻薄片层的褶皱形貌。研究了不同质量分数的氯化钙凝固浴对石墨烯纤维拉伸强度的影响,结果表明,当氯化钙质量分数为20%时,所制石墨烯纤维的电导率为180 S/cm,拉伸强度为892 MPa,表现出良好的导电性和机械柔韧性。
In order to better realize the application of graphene fibers in function textile area, the graphene oxide fibers were prepared by wet-spinning method using graphene oxides solution as spinning dope and calcium chloride solution with different contents as coagulation bath. The graphene fibers were obtained by chemical reduction of the as-prepared graphene oxide fibers in the aqueous solution of hydroiodic acid. The oxidation degree and structure morphology of graphene oxide were characterized by X-ray photoelectron spectroscopy and transmission electron microscopy, which indicates that the carbon/ oxygen atom ratio of graphene oxides is 1： 1, and graphene oxide shows thin and crumpled morphology. The influence of CaCl2 coagulation bath with different mass fractions on tensile strength is researched. The graphene fibers derived from 20% CaCl2 coagulation bath, exhibit high electrical conductivity of 180 S/cm and good tensile strength of 892 MPa.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2018年第1期1-5,共5页
Journal of Textile Research
基金
北京市教委科技计划一般项目(KM201610012002)
北京服装学院高水平教师队伍建设专项资金项目(BIFTQG201810)
服装材料研究开发与评价北京市重点实验室开放课题(2015ZK-04)
关键词
石墨烯纤维
湿法纺丝
凝固浴
导电性
拉伸强度
graphene fibers
wet-spinning
coagulation bath
conductivity
tensile strength
