Synthesis of nickel–rubber nanocomposites and evaluation of their dielectric properties

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Synthesis of nickel–rubber nanocomposites and evaluation of their dielectric properties

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Title: Synthesis of nickel–rubber nanocomposites and evaluation of their dielectric properties
Author: Muhammad Abdul Jamal, E; Joy, P A; Anantharaman,M R; Philip, Kurian
Abstract: Nanocomposites based on natural rubber and nano-sized nickelwere synthesized by incorporating nickel nanoparticles in a natural rubber matrix for various loadings of the filler. Structural, morphological, magnetic and mechanical properties of the compositeswere evaluated along with a detailed study of dielectric properties. Itwas found that nickel particleswere uniformly distributed in the matrix without agglomeration resulting in a magnetic nanocomposite. The elastic properties showed an improvement with increase in filler content but breaking stress and breaking strain were found to decrease. Dielectric permittivity was found to decrease with increase in frequency, and found to increase with increase in nickel loading. The decrease in permittivity with temperature is attributed to the high volume expansivity of rubber at elevated temperatures. Dielectric loss of blank rubber as well as the composites was found to increase with temperature.
URI: http://dyuthi.cusat.ac.in/purl/2834
Date: 2009-01


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