无机材料学报 ›› 2015, Vol. 30 ›› Issue (7): 763-768.DOI: 10.15541/jim20140686 CSTR: 32189.14.10.15541/jim20140686

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石墨烯包覆玻璃纤维复合材料的制备及其电学性能研究

刘国强1, 石福志2, 李耀刚1, 张青红1, 王宏志3   

  1. (1. 东华大学 材料科学与工程学院, 先进玻璃制造技术教育部工程研究中心, 上海 201620; 2. 上海交通大学 材料科学与工程学院, 金属基复合材料国家重点实验室, 上海 200240; 3. 东华大学 材料科学与工程学院, 纤维材料改性国家重点实验室, 上海 201620)
  • 收稿日期:2014-12-31 修回日期:2015-02-11 出版日期:2015-07-20 网络出版日期:2015-06-25
  • 作者简介:刘国强(1988–), 男, 硕士研究生. E-mail: hfuugqliu@163.com
  • 基金资助:
    高等学校学科创新引智计划 (111-2-04);高等学校博士学科点专项科研基金(20110075130001);教育部创新团队发展计划(IRT1221);上海市科委项目(12nm0503900, 13JC1400200);中国博士后科学基金 (2014M561468)

Preparation and Electrical Properties of Graphene Coated Glass Fiber Composites

LIU Guo-Qiang1, SHI Fu-Zhi2, LI Yao-Gang1, ZHANG Qing-Hong1, WANG Hong-Zhi3   

  1. (1. College of Materials Science and Engineering, Engineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, Donghua University, Shanghai 201620, China; 2. State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 3. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China)
  • Received:2014-12-31 Revised:2015-02-11 Published:2015-07-20 Online:2015-06-25
  • About author:LIU Guo-Qiang. E-mail: hfuugqliu@163.com
  • Supported by:
    Program of Introducing Talents of Discipline to Universities(111-2-04);Specialized Research Fund for the Doctoral Program of Higher Education(20110075130001);Innovative Research Team in University(IRT1221);Science and Technology Commission of Shanghai Municipality(12nm0503900,13JC1400200);China Postdoctoral Science Foundation Funded Project(2014M561468)

摘要:

以牛血清白蛋白(BSA)改性玻璃纤维表面, 利用静电吸附原理制备氧化石墨包覆的玻璃纤维复合材料, 采用氢碘酸还原氧化石墨得到石墨烯包覆玻璃纤维导电材料。利用X射线衍射(XRD)和傅立叶变换红外光谱仪(FT-IR)等表征样品的物相结构和基团类型, 扫描电镜(SEM)表征石墨烯包覆玻璃纤维的形貌特征。当氧化石墨分散液pH低于6时, 随着pH减小, 包覆效果变得更明显。通过粒径/Zeta电位仪表征氧化石墨和BSA在不同pH下的Zeta电位, 结果表明BSA等电点约为5.3, 氧化石墨的等电点小于3。得到的石墨烯包覆玻璃纤维导电材料的电导率达到4.5 S/m, 制备的导电玻璃纤维具有一定的柔性, 在弯曲后仍能保持原有的导电性能; 导电玻璃纤维在高于100℃热处理后, 由于石墨烯在高温下可以继续还原, 其电导率得到一定的提高, 表明制备的导电玻璃纤维可以在较高温度下使用。

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关键词: 玻璃纤维, 牛血清白蛋白, 石墨烯

Abstract:

The graphene coated glass fiber composites were obtained from the electrostatic adsorption of graphene oxide on bovine serum albumin (BSA) modified the glass fibers, and the subsequent reduction of graphene oxide coated glass fibers by hydroiodic acid at low temperature of 40℃. The phase structure and functional groups of graphene oxide were studied by XRD and FT-IR, respectively. SEM images showed that the graphene wrapped effect was improved with pH decreasing, when pH of graphene oxide dispersion was less than 6. Zeta potential of graphene oxide and BSA molecule were tested by Particle size/Zeta potential instrument, which showed that the isoelectric points of graphene oxide and BSA were smaller than 3 and 5.3, respectively. Conductivity of graphene wrapped glass fiber composites reached 4.5 S/m, and conductive glass fibers maintained original conductivity after different levels of bending. Moreover, due to the reduction of graphene, the conductivity increased slightly after the heat-treatment above 100℃. These results prove that the conductive glass fibers can be used at high temperature.

Key words: glass fiber, bovine serum albumin, graphene

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