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Effect on dielectric, structural and thermal behaviour of \(\hbox {CaCu}_{{3}}\hbox {Ti}_{{4}}\hbox {O}_{{12}}\) in a Nylon 11 matrix

  • R S Ernest RavindranEmail author
  • P Thomas
  • S Renganathan
Article
  • 9 Downloads

Abstract

This paper discusses the probability of obtaining high-dielectric permittivity from ceramic–polymer composites by mixing higher dielectric material, \(\hbox {CaCu}_{{3}}\hbox {Ti}_{{4}}\hbox {O}_{{12}}\) (CCTO) in a Nylon 11 matrix by the melt-mixing method. The volume percentage of addition of CCTO micro-particles was from 0 to 20 vol%. The dielectric, structural morphology and thermal properties of the composites were analysed using an impedance analyser, a scanning electron microscope, a differential scanning calorimeter and a thermogravimetric analyser, respectively. The permittivity of 50 vol% of the composite is 12, which is increased to that of virgin Nylon 11 of 5.8. Different theoretical models were employed to rationalize the dielectric behaviour of the composite and found to be accurate with that of the experimental data. The thermal behaviour of the composites was good after the addition of CCTO micro-particles into it. It provides the means to employ the ceramic–polymer composites at low temperature with less permittivity and loss.

Keywords

Nylon 11 micro-CCTO particles dielectric properties and thermal behaviour 

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Copyright information

© Indian Academy of Sciences 2019

Authors and Affiliations

  1. 1.Department of ECEKLEF (Deemed to be University)Vaddeswaram, GunturIndia
  2. 2.Dielectric Materials DivisionCentral Power Research InstituteBangaloreIndia
  3. 3.Department of Biotechnology, A. C. Tech.Anna UniversityChennaiIndia

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