新型炭材料2019，Vol.34Issue(5)：417-425,9.DOI:10.1016/S1872-5805(19)60023-5
结构稳定、散热量大的柔性纳米碳管@热解炭复合纸的制备
A flexible carbon nanotube-pyrolytic carbon sandwich paper with a stable structure and high heat-dissipation capacity
摘要
Abstract
A thin layer of pyrolytic carbon (PyC) was deposited on a carbon nanotube paper (CNP) by chemical vapor deposition from methane to improve its structural stability while maintaining its excellent mechanical and thermal conductivity performance.The resulting material consisted of layers of PyC carbon on the outer surfaces,a layer of bare CNTs in the center,and layers of CNTs infiltrated with PyC between the outer and inner layers.The resulting sandwich material could be cut into any size without breaking the surrounding material.The CNTs in the center layer were stretched after the CNP was bent 500 times around a cylindrical die,leading to an increase of tensile strength from 8.58 to 11.41 MPa.The outer PyC layers and the PyC-infiltrated layers retained their integrity.The thermal diffusivity and heat-dissipation capacity of the sandwich paper remain almost the same before and after bending,which is attributed to the undamaged CNTs and PyC layers.This paper has potential applications as a lightweight and flexible heat-dissipation material at high temperatures.关键词
碳纳米管纸/热解炭/复合纸/稳定结构/柔性/散热量Key words
Carbon nanotube paper/Pyrolytic carbon/Composite paper/Stable structure/Flexibility/Heat-dissipation capacity分类
化学化工引用本文复制引用
刘雪松,付前刚,王慧,魏亚龙,宋强..结构稳定、散热量大的柔性纳米碳管@热解炭复合纸的制备[J].新型炭材料,2019,34(5):417-425,9.基金项目
国家自然科学基金(51521061,51502242) （51521061,51502242）
“111”引智计划(B08040) （B08040）
西北工业大学凝固技术国家重点实验室(142-TZ-2016).National Natural Science Foundation of China under the grant numbers (51502242,51521061) （142-TZ-2016）
111" Project under a grant number (B08040) and Research Fund of State Key Laboratory of Solidification Processing (NWPU) （B08040）
China under a grant number (142-TZ-2016). （142-TZ-2016）
