摘要
为制备性能优异的石墨烯基纱线,选择聚酰胺酸(PAA)作为纺丝聚合物,氧化石墨烯(GO)水分散液作为凝固浴,利用湿法静电纺纱技术构建PAA/GO复合纱线,进一步通过高温作用获得聚酰亚胺/还原氧化石墨烯(PI/rGO)复合纱线。表征了PI/rGO复合纱线的形貌和化学结构,研究了PI/rGO复合纱线的力学性能和导电性能,并对其电性能的实际应用性能进行测试。结果表明:PI/rGO复合纱线形貌优异,且拥有优异的力学性能和导电性能;当GO质量浓度达到10 mg/mL时,PI/rGO复合纱线的断裂伸长率达到16.5%,断裂强度达到21.06 MPa,电阻达到210 kΩ,能够单独使用或编织成织物作为导线点亮LED灯泡;同时,PI/rGO复合纱线也表现出理想的双电层电容特性和电化学性能。
In order to prepare high-performance graphene-based yarns, polyamide acid/graphene oxide(PAA/GO) composite yarn is first constructed by wet electrospinning technology and then subjected to high-temperature treatment to transform into polyimide/reduced graphene oxide(PI/rGO) composite yarn, with polyamide acid(PAA)as spinning polymer and graphene oxide(GO) aqueous dispersion as coagulation bath. The morphology and chemical structure of PI/rGO composite yarns are characterized. The mechanical and electrical properties of PI/rGO composite yarns are researched, and the electrical properties are also tested for practical application. The results show that the PI/rGO composite yarn has excellent morphology, outstanding mechanical and prominent electrical properties. The elongation at break, the breaking strength, and the resistance of PI/rGO composite yarn respectively reach to 16.5%, 21.06 MPa, and 210 kΩ. When the GO concentration is 10 mg/mL, which could be used alone or woven into fabrics as wires to light LED bulbs. Furthermore, PI/rGO composite yarns also exhibit ideal double layer capacitance characteristics and electrochemical properties.
作者
师晓含
周玉嫚
齐庆欢
张庆
王清清
吴以婧
王欣爽
SHI Xiaohan;ZHOU Yuman;QI Qinghuan;ZHANG Qing;WANG Qingqing;WU Yijing;WANG Xinshuar(Textile and Garment Industry Research Institute,Zhongyuan University of Technology,Zhengzhou 450007,Henan,China)
出处
《上海纺织科技》
2024年第9期58-62,共5页
Shanghai Textile Science & Technology
基金
中原工学院研究生科研创新计划项目(YKY2023ZK55)
大学生创新创业训练计划项目(202310465023)。
