石墨烯/聚丙烯腈皮芯结构纤维成型构筑及功能性  

Fabrication and functional study of graphene/polyacrylonitrile skin core structural fibers

作　　者：崔瑞祺 商元元 李娟鹃 张浩 史宝会[1,2,3,4,5,6,7,8,9] 房宽峻 CUI Ruiqi;SHANG Yuanyuan;LI Juanjuan;ZHANG Hao;SHI Baohui;FANG Kuanjun(College of Textiles&Clothing,Qingdao University,Qingdao 266071,China;Ecological Textile Provincial Co-construction Collaborative Innovation Center,Qingdao University,Qingdao 266071,China;State Key Laboratory of Biopolysaccharide Fiber Forming and Ecological Textile,Qingdao University,Qingdao 266071,China;Shandong Key Laboratory of Medical and Health Textile Materials,Qingdao University,Qingdao 266071,China;Shandong Ecological Textile Collaborative Innovation Center,Qingdao University,Qingdao 266071,China;Laboratory of Low Carbon Textile and Functional Manufacturing of Shandong Universities,Qingdao University,Qingdao 266071,China;Engineering Research Center of Industrial Textiles,Ministry of Education,Ministry of Education,Donghua University,Shanghai 201620,China;Key Laboratory of High Performance Fibers and Products,Ministry of Education,Donghua University,Shanghai 201620,China;Shandong Jinguan Mesh Co.,Ltd.,Binzhou 251712,China)

机构地区：[1]青岛大学青岛大学纺织服装学院,青岛266071 [2]青岛大学生态纺织省部共建协同创新中心,青岛266071 [3]青岛大学生物多糖纤维成形与生态纺织国家重点实验室,青岛266071 [4]青岛大学,山东省医疗健康纺织材料重点实验室,青岛266071 [5]青岛大学,山东省生态纺织协同创新中心,青岛266071 [6]青岛大学,山东省高等学校低碳纺织与功能制造实验室,青岛266071 [7]东华大学产业用纺织品教育部工程研究中心,上海201620 [8]东华大学高性能纤维及制品教育部重点实验室,上海201620 [9]山东金冠网具有限公司,山东滨州251712

出　　处：《现代纺织技术》2024年第12期1-9,共9页Advanced Textile Technology

基　　金：山东省重大科技创新工程项目(2023CXGC010612、2023CXGC010504);山东省科技型中小企业创新能力提升工程项目(2021TSGC1189);2023年山东省重点研发计划项目(2023CXPT022);生物多糖纤维成形与生态纺织省部共建国家重点实验室项目(ZDKT202008、ZDKT202103);山东省自然科学基金项目(ZR2022QA017);山东省大学青年创新技术计划创新团队(2023KJ360);国家自然科学基金项目(12202223)。

摘　　要：为开发新型复合纤维材料,提出以石墨烯为导电基材一步法构筑导电纤维的研究策略,采用微流控湿法纺丝工艺制备石墨烯/聚丙烯腈皮芯结构复合纤维,探究皮层和芯层纺丝液流量对石墨烯取向排列、纤维导电和电热性能影响规律。通过微观形貌观察发现,复合纤维皮层石墨烯取向随着纺丝液流量的变化呈现先增加后减小的趋势,皮层流量为0.10 mL/min时石墨烯取向最佳。高度取向的石墨烯赋予复合纤维优异的力学性能和导电性能,使复合纤维的强度和电导率分别达到241.38 MPa和3.94 S/cm。在4 V电压下,复合纤维表面的温度达到约48.3℃,热响应速率为2.0℃/s。研究表明通过调控不同的皮芯流量,调整复合纤维的结构和性能,可以成功制备出以石墨烯为基材的复合导电纤维。研究结果可为石墨烯复合加热纤维的开发提供参考。Graphene,as a new type of two-dimensional carbon nanomaterial,has emerged as a prominent research focus in recent years due to its unique composition and excellent conductivity,thermal conductivity,and mechanical properties.The graphene fiber,a novel carbon-based fiber crafted from graphene layers,inherits the advantages of graphene,such as lightweight and flexibility.In many practical applications,balancing the multiple properties of graphene fibers can be challenging,and it is necessary to choose a suitable spinning method to regulate the chemical composition and structure of graphene fibers and polymers,so as to broaden the application field of graphene-based fibers.Polyacrylonitrile is a synthetic fiber with good elasticity and weather resistance.It can be used in industrial production through wet spinning and can be combined with graphene incorporation to obtain high-performance composite fibers.Microfluidic spinning technology is a new type of spinning technology developed on the basis of microfluidic chip technology,which is combined with wet spinning technology to build a microfluidic wet spinning system.Microfluidic chip technology enables precise control over the microstructure of spinning solutions and is characterized by a high degree of miniaturization,integration,and cost-effectiveness.This article utilizes microfluidic wet spinning technology to prepare a novel type of conductive fiber with a core-sheath structure.By precisely adjusting the spinning fluid inside the microfluidic chip spinning channel,the spinning fluid exhibits laminar flow characteristics in the microchannel.Through a simple process,the directional control of graphene in the fiber outer layer is achieved,fully utilizing the high conductivity and high specific surface area of the outer layer material,as well as the mechanical properties of the core layer polyacrylonitrile fiber.As the flow rate of the composite fiber layer increases,the arrangement of graphene in the fiber layer gradually becomes standardized under shear stress and

关 键 词：石墨烯 微流控 湿法纺丝 导电纤维 电加热性能 

分 类 号：TS176[轻工技术与工程—纺织材料与纺织品设计]