Effect of silane as coupling agent on the dielectric properties of BaTiO3-epoxy composites

被引:120
作者
Ramajo, L. [1 ]
Castro, M. S. [1 ]
Reboredo, M. M. [1 ]
机构
[1] Univ Mar del Plata, Inst Res Mat Sci & Technol INTEMA, CONICET, Mar Del Plata, Argentina
关键词
polymer-matrix composites (PMCs); electrical properties; surface treatments; ceramic particles;
D O I
10.1016/j.compositesa.2007.04.003
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The influence of silane coupling agents on the microstructure and dielectric behaviour of epoxy/BaTiO3 composites was studied. Epoxy was diluted using tetrahydrofuran as solvent in order to facilitate the mixing step. Methoxy silane was applied onto ceramic particles. Different diluted aqueous solutions with 0.25, 0.35 and 0.50 wt% of silane/BaTiO3 were used. Dipping technique was utilised to obtain composite films. Dielectric measurements were performed from 25 Hz to I MHz and from 20 degrees C to 120 degrees C. Composites presented good dielectric properties and a strong dependence with the silane concentration. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1852 / 1859
页数:8
相关论文
共 16 条
  • [1] On the formation of an oxycarbonate intermediate phase in the synthesis of BaTO3 from (Ba,Ti)-polymeric organic precursors
    Durán, P
    Gutierrez, D
    Tartaj, J
    Bañares, MA
    Moure, C
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2002, 22 (06) : 797 - 807
  • [2] Heating-rate effect on the BaTiO3 formation by thermal decomposition of metal citrate polymeric precursors
    Durán, P
    Capel, F
    Tartaj, J
    Gutierrez, D
    Moure, C
    [J]. SOLID STATE IONICS, 2001, 141 : 529 - 539
  • [3] KWAN CK, 2004, DIELECTRIC PHENOMENA, P110
  • [4] Lenza Rubia F. S., 2002, Mat. Res., V5, P497
  • [5] Is the Maxwell-Sillars-Wagner model reliable for describing the dielectric properties of a core-shell particle epoxy system?
    Lestriez, B
    Maazouz, A
    Gerard, JF
    Sautereau, H
    Boiteux, G
    Seytre, G
    Kranbuehl, DE
    [J]. POLYMER, 1998, 39 (26) : 6733 - 6742
  • [6] RELAXATIONS IN THERMOSETS .7. DIELECTRIC EFFECTS DURING THE CURING AND POSTCURING OF AN EPOXIDE BY MIXED AMINES
    MANGION, MBM
    JOHARI, GP
    [J]. MACROMOLECULES, 1990, 23 (15) : 3687 - 3695
  • [7] MCCRUM NG, 1991, ANELASTIC DIELECTRIC, pCH5
  • [8] Nakamoto K., 1986, INFRARED RAMAN SPECT, P231
  • [9] Plueddemann E. P., 1982, SILANE COUPLING AGEN
  • [10] Hopping conductivity in polymer matrix-metal particles composites
    Psarras, G. C.
    [J]. COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2006, 37 (10) : 1545 - 1553