混酸功能化碳纳米管掺杂对环氧树脂导电和导热性能的影响

doi:10.19595/j.cnki.1000-6753.tces.L80536

Abstract
Figure/Table
References
Related Citation (12)

Download: PDF (38666 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Epoxy resin is widely used in power equipment. The modification of epoxy resin by carbon nanotubes can effectively change its electric and thermal conductivities. In this paper, the epoxy resin was modified by mixed-acid functionalized multi-walled carbon nanotubes. The aspect ratio of carbon nanotubes decreased after treatment, so two kinds of carbon nanotubes with different aspect ratios were selected for comparison. One was carbon nanotubes before mixed acid treatment, and the other was carbon nanotubes with the same aspect ratio after mixed acid treatment. Comparing the electric and thermal conductivities of these three kinds of carbon nanotubes doped with epoxy resin, mixed acidification treatment is beneficial to the dispersion of carbon nanotubes. However, the decrease of the aspect ratio of carbon nanotubes and the interfacial layer formed between carbon nanotubes and epoxy resin are not conducive to the improvement of electric and thermal conductivities of composites. Therefore, in order to obtain better electric and thermal conductivities, the treatment method should be based on uniform dispersion, without reducing the aspect ratio, and at the same time reducing the influence of the interface between filler and matrix.

Key words： Mixed acidification carbon nanotubes electric conductivity thermal conductivity

Received: 01 July 2018 Published: 02 January 2020

PACS:

TM215

Corresponding Authors: 国家自然科学基金（51707155）和陕西省科技计划项目青年项目（2018JQ5039）资助

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Wang Chuang
	Zhao Lang
	Jia Jing
	Wang Deyi
	Peng Zongren

Cite this article:

Wang Chuang,Zhao Lang,Jia Jing等. Effects of Mixed Acid Functionalization on Electric and Thermal Conductivities of Carbon Nanotube/Epoxy Resin Composites[J]. Transactions of China Electrotechnical Society, 2019, 34(zk2): 457-464.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L80536 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/Izk2/457

[1] De Volder M F L, Tawfick S H, Baughman R H, et al. Carbon nanotubes: present and future ommercial applications[J]. Science, 2013, 339(6119): 535-539.
[2] Nelson J K.Dielectric polymer nanocomposites[M]. New York: Springer, 2010.
[3] Inam F, Thuc V, Jones J P, et al.Effect of carbon nanotube lengths on the mechanical properties of epoxy resin: an experimental study[J]. Journal of Composite Materials, 2013, 47(19): 2321-2330.
[4] Montazeri A, Montazeri N.Viscoelastic and mechanical properties of multi walled carbon nanotube/epoxy composites with different nanotube content[J]. Materials & Design, 2011, 32(4): 2301-2307.
[5] Starkova O, Chandrasekaran S, Prado L, et al.Hydrothermally resistant thermally reduced graphene oxide and multi-wall carbon nanotube based epoxy nanocomposites[J]. Polymer Degradation and Stability, 2013, 98(2): 519-526.
[6] Chen Xianhong, Wang Jianfeng, Lin Ming, et al.Mechanical and thermal properties of epoxy nanocomposites reinforced with amino-functionalized multi-walled carbon nanotubes[J]. Materials Science and Engineering: A, 2008, 492(1-2): 236-242.
[7] Cui Wei, Du Feipeng, Zhao Jinchao, et al.Improving thermal conductivity while retaining high electrical resistivity of epoxy composites by incorporating silica-coated multi-walled carbon nanotubes[J]. Carbon, 2011, 49(2): 495-500.
[8] Bauhofer W, Kovacs J Z.A review and analysis of electrical percolation in carbon nanotube polymer composites[J]. Composites Science and Technology, 2009, 69(10): 1486-1498.
[9] 隋珊. EP/MWNTs纳米复合材料界面模拟及其对介电性能的影响[D]. 哈尔滨: 哈尔滨理工大学, 2014.
[10] Sandler J, Shaffer M S P, Prasse T, et al. Development of a dispersion process for carbon nanotubes in an epoxy matrix and the resulting electrical properties[J]. Polymer, 1999, 40(21): 5967-5971.
[11] Sandler J K W, Kirk J E, Kinloch I A, et al. Ultra-low electrical percolation threshold in carbon-nanotube- epoxy composites[J]. Polymer, 2003, 44(19): 5893-5899.
[12] Guadagno L, De Vivo B, Di Bartolomeo A, et al.Effect of functionalization on the thermo-mechanical and electrical behavior of multi-wall carbon nanotube/epoxy composites[J]. Carbon, 2011, 49(6): 1919-1930.
[13] Patil S, Sharma R A, Chaudhari L, et al.Insulating properties of allyl modified CNT on UPR nano- composites at low concentrations[J]. IEEE Transa- ctions on Dielectrics and Electrical Insulation, 2013, 20(3): 988-994.
[14] 卫保娟, 肖潭, 李雄俊, 等. 石墨烯与多壁碳纳米管增强环氧树脂复合材料的制备及性能[J]. 复合材料学报, 2012, 29(5): 53-60.
Wei Baojuan, Xiao Tan, Li Xiongjun.Preparation and properties of graphene and MWCNTs reinforced resin composite[J]. Acta Materiae Compositae Sinica, 2012, 29(5): 53-60.
[15] 袁观明, 李轩科, 张铭金, 等. 碳纳米管对环氧树脂力学性能的影响[J]. 宇航材料工艺, 2005, 35(2): 38-42.
Yuan Guanming, Li Xuanke, Zhang Mingjin, et al.Effect of carbon nanotubes on the mechannical properties of epoxy resin[J]. Aerospace Materials & Technology, 2005, 35(2): 38-41.
[16] Tanaka T, Kozako M, Fuse N, et al.Proposal of a multi-core model for polymer nanocomposite dielectrics[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2005, 12(4): 669-681.
[17] Tanaka T.Dielectric nanocomposites with insulating properties[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2005, 12(5): 914-928.
[18] Li Shengtao, Yin Guilai, Bai Suna, et al.A new potential barrier model in epoxy resin nanodiele- ctrics[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2011, 18(5): 1535-1543.
[19] 王岚, 党智敏. 碳纳米管填充的高介电常数聚合物基复合电介质材料[J]. 电工技术学报, 2006, 21(4): 24-28.
Wang Lan, Dang Zhimin.Carbon nanotube filled polymer-based dielectric composites with high dielectric constant[J]. Transactions of China Electro- technical Society, 2006, 21(4): 24-28.