退火温度对柔性石墨烯薄膜力学性能的影响

宋宁静; 吕春祥; 陈成猛; 马灿良; 孔庆强

doi:10.1016/S1872-5805(17)60119-7

退火温度对柔性石墨烯薄膜力学性能的影响

doi: 10.1016/S1872-5805(17)60119-7

1.
中国科学院山西煤炭化学研究所, 碳纤维制备技术国家工程实验室, 山西太原 030001;
2.
中国科学院大学, 北京 100049;
3.
中国科学院山西煤炭化学研究所炭材料重点实验室, 山西太原 030001;
4.
山西大学分子科学研究所, 山西太原 030006

详细信息

作者简介:
宋宁静,博士.E-mail:snj642370134@126.con

通讯作者:
吕春祥,博士,研究员.E-mail:chunxl@sxicc.ac.cn;陈成猛,博士,副研究员.E-mail:ccm@sxic.ac.cn

中图分类号: TQ127.1⁺1
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- 被引次数: 0
出版历程
- 收稿日期: 2017-02-12
- 录用日期: 2017-06-28
- 修回日期: 2017-05-06
- 刊出日期: 2017-06-28

Effect of annealing temperature on the mechanical properties of flexible graphene films

1.
National Engineering Laboratory for Carbon Fiber Technology, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;
2.
University of Chinese Academy of Sciences, Beijing 100049, China;
3.
Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;
4.
Institute of Molecular Science, Shanxi University, Taiyuan 030006, China

摘要

摘要: 通过抽滤法制备出氧化石墨烯薄膜，然后分别将其在1 300、1 400、1 500、1 600、1 700℃下进行炭化得到石墨烯薄膜。石墨烯薄膜的微观结构使用扫描电子显微镜、原子力显微镜、拉曼、X射线衍射光谱等仪器进行表征，其拉伸强度和断裂伸长率也随着退火温度发生了变化。当石墨烯薄膜在1 500℃进行退火时，其拉伸强度和断裂伸长率分别达到了最大值，为22.41 MPa和2.44%，这可能是由于1 500℃时，石墨烯表面产生了更多的物理锁合位点。关于石墨烯薄膜退火温度-结构-机械性能之间的关系的研究，有望为石墨烯薄膜在实际应用中性能的优化提供理论指导。
- 石墨烯薄膜 /
- 退火温度 /
- 褶皱 /
- 力学性能
Abstract: Free-standing graphene films (GFs) as functional materials require high mechanical performance for a convenient industrial processing.GFs were prepared from graphene oxide films by annealing temperatures from 1 300 to 1 700℃,and were characterized by AFM,XRD,SEM,Raman spectroscopy and mechanical testing.Results indicate that the samples have a maximum tensile strength and fracture strain of 22.41 MPa and 2.44%,respectively and a minimum thermal conductivity of 744 Wm^-1·K^-1 for an annealing temperature at 1 500℃.This is related to physical interlocking which results,from surface wrinkles of the graphene layers.
- Graphene film /
- Annealing temperature /
- Wrinkle /
- Mechanical properties

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