Preparation, Characterization, and Modeling of Carbon Nanofiber/Epoxy Nanocomposites

被引:50
作者
Sun, Lan-Hui [2 ]
Ounaies, Zoubeida [1 ]
Gao, Xin-Lin [3 ]
Whalen, Casey A. [1 ]
Yang, Zhen-Guo [2 ]
机构
[1] Texas A&M Univ, Dept Aerosp Engn, College Stn, TX 77843 USA
[2] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China
[3] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA
关键词
ELECTRICAL-PROPERTIES; MECHANICAL-PROPERTIES; FIBER COMPOSITES; CONDUCTIVITY; DEPENDENCE; MORPHOLOGY; EPOXY;
D O I
10.1155/2011/307589
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
There is a lack of systematic investigations on both mechanical and electrical properties of carbon nanofiber (CNF)-reinforced epoxy matrix nanocomposites. In this paper, an in-depth study of both static and dynamic mechanical behaviors and electrical properties of CNF/epoxy nanocomposites with various contents of CNFs is provided. A modified Halpin-Tsai equation is used to evaluate the Young's modulus and storage modulus of the nanocomposites. The values of Young's modulus predicted using this method account for the effect of the CNF agglomeration and fit well with those obtained experimentally. The results show that the highest tensile strength is found in the epoxy nanocomposite with a 1.0 wt% CNFs. The alternate-current (AC) electrical properties of the CNF/epoxy nanocomposites exhibit a typical insulator-conductor transition. The conductivity increases by four orders of magnitude with the addition of 0.1 wt% (0.058 vol%) CNFs and by ten orders of magnitude for nanocomposites with CNF volume fractions higher than 1.0 wt% (0.578 vol%). The percolation threshold (i.e., the critical CNF volume fraction) is found to be at 0.057 vol%.
引用
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页数:8
相关论文
共 31 条
[1]   Epoxy/Amine-Functionalized Short-Length Vapor-Grown Carbon Nanofiber Composites [J].
Ahn, Soo-Na ;
Lee, Hwa-Jeong ;
Kim, Bang-Jun ;
Tan, Loon-Seng ;
Baek, Jong-Beom .
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2008, 46 (22) :7473-7482
[2]   The electronic transport properties and microstructure of carbon nanofiber/epoxy composites [J].
Allaoui, A. ;
Hoa, S. V. ;
Pugh, M. D. .
COMPOSITES SCIENCE AND TECHNOLOGY, 2008, 68 (02) :410-416
[3]   Morphology and mechanical and electrical properties of oriented PVA-VGCF and PVA-MWNT composites [J].
Bin, YZ ;
Mine, M ;
Koganernaru, A ;
Jiang, XW ;
Matsuo, M .
POLYMER, 2006, 47 (04) :1308-1317
[4]   Mechanical and thermal properties of vapor-grown carbon nanofiber and polycarbonate composite sheets [J].
Choi, YK ;
Sugimoto, KI ;
Song, SM ;
Endo, M .
MATERIALS LETTERS, 2005, 59 (27) :3514-3520
[5]   Mechanical and physical properties of epoxy composites reinforced by vapor grown carbon nanofibers [J].
Choi, YK ;
Sugimoto, K ;
Song, SM ;
Gotoh, Y ;
Ohkoshi, Y ;
Endo, M .
CARBON, 2005, 43 (10) :2199-2208
[6]   Effects of nanofiber treatments on the properties of vapor-grown carbon fiber reinforced polymer composites [J].
Cortés, P ;
Lozano, K ;
Barrera, EV ;
Bonilla-Rios, J .
JOURNAL OF APPLIED POLYMER SCIENCE, 2003, 89 (09) :2527-2534
[7]   HALPIN-TSAI EQUATIONS - REVIEW [J].
HALPIN, JC ;
KARDOS, JL .
POLYMER ENGINEERING AND SCIENCE, 1976, 16 (05) :344-352
[8]   Core structure of vapor grown carbon fibers and morphology dependence of tensile strength [J].
Hashishin, T ;
Iwanaga, H ;
Ichihara, A ;
Mukai, SR .
CARBON, 2003, 41 (02) :343-349
[9]   Study on mechanical, morphological and electrical properties of carbon nanofiber/polyetherimide composites [J].
Kumar, S. ;
Rath, T. ;
Mahaling, R. N. ;
Reddy, C. S. ;
Das, C. K. ;
Pandey, K. N. ;
Srivastava, R. B. ;
Yadaw, S. B. .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2007, 141 (1-2) :61-70
[10]   Processing and characterization of aligned vapor grown carbon fiber reinforced polypropylene [J].
Kuriger, RJ ;
Alam, MK ;
Anderson, DP ;
Jacobsen, RL .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2002, 33 (01) :53-62