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过程工程学报 ›› 2018, Vol. 18 ›› Issue (3): 563-569.DOI: 10.12034/j.issn.1009-606X.217325

• 过程与工艺 • 上一篇    下一篇

碳纳米管-膨胀石墨/环氧树脂复合材料的导热性能

刘艳杰1,2, 陆江银1*, 李 玲1, 武晓峰2, 崔彦斌2*   

  1. 1. 新疆大学化学化工学院,石油天然气精细化工教育部重点实验室,新疆 乌鲁木齐 830046; 2. 中国科学院过程工程研究所多相复杂系统国家重点实验室,北京 100190
  • 收稿日期:2017-09-04 修回日期:2017-11-10 出版日期:2018-06-22 发布日期:2018-06-06
  • 通讯作者: 崔彦斌 ybcui@ipe.ac.cn
  • 基金资助:
    中国科学院过程工程研究所介尺度科学中心创新基金

Thermal Conductivity of Carbon Nanotubes-Expanded Graphite/Epoxy Resin Composite

Yanjie LIU1,2, Jiangyin LU1*, Ling LI1, Xiaofeng WU2, Yanbin CUI2*   

  1. 1. Key Laboratory of Oil & Gas Fine Chemicals, Ministry of Education, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi, Xinjiang 830046, China; 2. State Key Lab of Multi-phase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2017-09-04 Revised:2017-11-10 Online:2018-06-22 Published:2018-06-06

摘要: 在环氧树脂中添加多壁碳纳米管和膨胀石墨作为填料,以提高环氧树脂的导热性能. 结果表明,添加0.5wt%多壁碳纳米管时,环氧树脂的最佳导热系数为0.3448 W/(m?K),比不添加时提高30%;添加0.75wt%羧基改性多壁碳纳米管时,环氧树脂的最佳导热系数为0.3813 W/(m?K),比添不加时提高40%;同时添加多壁碳纳米管和膨胀石墨后,环氧树脂导热系数可进一步提高到0.4039 W/(m?K),表明在环氧树脂中添加混合填料,二者可在环氧树脂中形成有效的导热网络,能进一步提高聚合物的导热性能.

关键词: 聚合物, 纳米材料, 膨胀石墨, 复合材料, 导热系数

Abstract: Multi-walled carbon nanotubes (MWCNTs) and expanded graphite were added into epoxy resin to improve the thermal conductivity. The results indicated that the maximum thermal conductivity of composite was 0.3448 W/(m?K) by adding 0.5wt% MWCNTs, which was improved by 30% than epoxy resin. When 0.75wt% MWCNTs-COOH was added into epoxy resin, the maximum thermal conductivity of composite was 0.3813 W/(m?K), which was improved by 40% than epoxy resin. The thermal conductivity of epoxy resin could reach up to 0.4039 W/(m?K) by adding hybrid filler (MWCNTs-COOH and expanded graphite). A thermally conductive network was formed in epoxy resin when MWCNTs-COOH and expanded graphite were added into epoxy resin and the thermal conductivity of polymer could be further improved.

Key words: polymers, nanomaterials, expanded graphite, composites, thermal conductivity