弹性聚合物SBS纳米纤维的石墨烯包覆及其导电性能  

Coating of Graphene on SBS Elastic Polymer Nanofibers for Conducting Property

作　　者：石跃婷 李善霖 孙梅洁 陈志宏 李小强[1] SHI Yue-ting;LI Shan-lin;SUN Mei-jie;CHEN Zhi-hong;LI Xiao-qiang(School of Science,Wuhan University of Technology,Wuhan 430070,China;School of Material Science and Engineering,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学理学院,武汉430070 [2]武汉理工大学材料科学与工程学院,武汉430070

出　　处：《武汉理工大学学报》2023年第1期1-9,共8页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(51603158).

摘　　要：采用多巴胺对苯乙烯-丁二烯-苯乙烯嵌段弹性共聚物纳米纤维表面进行活化改性,进一步基于静电吸附作用将带负电的氧化石墨烯片吸附到带正电的弹性聚合物纳米纤维表面,并利用液相还原方法制备了石墨烯包覆的弹性聚合物纳米纤维。探索了多巴胺改性浓度和时间对纳米纤维表面物理化学状态的影响规律。制备出了电阻约为5.29 kΩ具有变形能力的石墨烯包覆弹性体聚合物导电网络。Dopamine, a bio-inspired material, was used as surface modification agent to improve the hydrophilicity of styrene-butadiene-styrene elastic nanofibers and to change their charge status.A simple, solution-processed and low-cost method was developed to coat the surface of modified polymer nanofibers with graphene oxide based on electrostatic absorption.After reduction, graphene-polymer nanofibers were obtained, and they exhibited resistance of ~5.29 kΩ and stable conductivity under bending and stretching.

关 键 词：多巴胺 静电吸附 氧化石墨烯 柔性导电材料 复合纳米纤维 

分 类 号：TB332[一般工业技术—材料科学与工程]