Dielectric properties of nanosilica filled epoxy nanocomposites

被引：16
作者：
Veena, M. G. [1 ]
Renukappa, N. M. [1 ]
Shivakumar, Kunigal N. [2 ]
Seetharamu, S. [3 ]
机构：
[1] Sri Jayachamarajendra Coll Engn, Dept Elect & Commun Engn, Mysuru 570006, India
[2] N Carolina Agr & Tech State Univ, Dept Mech Engn, Ctr Composite Mat Res, Greensboro, NC 27411 USA
[3] Cent Power Res Inst, Mat Technol Div, Bengaluru 560080, India
来源：
SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES | 2016年 / 41卷 / 04期
关键词：
AC conductivity; sea water aging; dielectric properties; dispersion; epoxy nanocomposites; MATRIX; RESIN;
D O I：
10.1007/s12046-016-0473-z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents the development of epoxy-silica nanocomposites and characterized for dielectric properties. The effect of nanosilica loading (0-20 wt%), frequency, temperature and sea water aging on these properties was studied. Transmission electron microscopy (TEM) analysis of the samples showed an excellent dispersion. However, at higher silica loading TEM showed inter-contactity of the particles. The dielectric constant (epsilon') increased with silica loading and reached an optimum at about 10 wt%. The epsilon' of the nanocomposites showed linear decrease with frequency whereas AC conductivity (sigma(ac)) increases. The sigma(ac) and epsilon' increased marginally with temperature and sea water aging.
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收藏
页码：407 / 414
页数：8
相关论文
共 22 条
  • [1] [Anonymous], 2009, P 6 INT C NETW SENS
  • [2] Modeling the barrier properties of polymer-layered silicate nanocomposites
    Bharadwaj, RK
    [J]. MACROMOLECULES, 2001, 34 (26) : 9189 - 9192
  • [3] Cheng L., 2008, INT J NANOPART, V1, DOI [10.1504/IJNP.2008.017615, DOI 10.1504/IJNP.2008.017615]
  • [4] Fabiani D, 2008, IEEE INT S EL INS MA, P510
  • [5] Influence of Nanoparticle Surface Treatment on the Electrical Properties of Cycloaliphatic Epoxy Nanocomposites
    Huang, Xingyi
    Zheng, Yun
    Jiang, Pingkai
    Yin, Yi
    [J]. IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2010, 17 (02) : 635 - 643
  • [6] Electrical relaxation dynamics in TiO2 - polymer matrix composites
    Kontos, G. A.
    Soulintzis, A. L.
    Karahaliou, P. K.
    Psarras, G. C.
    Georga, S. N.
    Krontiras, C. A.
    Pisanias, M. N.
    [J]. EXPRESS POLYMER LETTERS, 2007, 1 (12): : 781 - 789
  • [7] Nonaqueous synthesis of nanosilica in epoxy resin matrix and thermal properties of their cured nanocomposites
    Lee, TM
    Ma, CCM
    [J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2006, 44 (02) : 757 - 768
  • [8] Water transportation in epoxy resin
    Li, LN
    Zhang, SY
    Chen, YH
    Liu, MJ
    Ding, YF
    Luo, XW
    Pu, Z
    Zhou, WF
    Li, SJ
    [J]. CHEMISTRY OF MATERIALS, 2005, 17 (04) : 839 - 845
  • [9] Dielectric Spectroscopy of Epoxy Resin with and without Nanometric Alumina Fillers
    Maity, P.
    Poovamma, P. K.
    Basu, S.
    Parameswaran, V.
    Gupta, Nandini
    [J]. IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2009, 16 (05) : 1481 - 1488
  • [10] Nelson JK, 2007, 2007 ELECTRICAL INSULATION CONFERENCE AND ELECTRICAL MANUFACTURING EXPO, P229
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