Effect of nickel-cobalt-zinc ferrite filler on electrical and mechanical properties of thermoplastic natural rubber composites

Dwi Puryanti, Sahrim Ahmad, Mustaffa Hj Abdullah

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Thermoplastic natural rubber (TPNR) as polymer matrix was prepared by the melt blending method. Nickel-cobalt-zinc (NiCoZn) ferrite as a filler was prepared by the double-stage sintering method in air. The filler was incorporated in the polymer matrix using a Brabender internal mixer. The filler content was varied from 0 to 30wt.%. The morphological study of the fractured surface using a scanning electron microscope (SEM) shows the effects of strain. The X-ray diffraction (XRD) indicates the coexistence of both the ferrite and thermoplastic. Electrical properties were studied using a high frequency response analyzer (HFRA) at room temperature (298°K). The results show that resistivity (ρ) decreases, but the dielectric constant increases, with increasing filler content. The resistivity and dielectric constant for all the composites are in the range of 8.9×106 -9.7×105 Ωm and 33-72, respectively. A sharp change in both quantities around 15wt.% filler content is interpreted as due to the transition from a dispersed system to an attached system. The tensile study shows that the elongation at break point and the tensile strength of the composite at room temperature decrease with increasing filler content. The hardness of the samples decreases with increasing filler content.

Original languageEnglish
Pages (from-to)561-567
Number of pages7
JournalPolymer - Plastics Technology and Engineering
Volume45
Issue number4
DOIs
Publication statusPublished - 2006

Fingerprint

Rubber
Cobalt
Nickel
Thermoplastics
Ferrite
Fillers
Zinc
Electric properties
Mechanical properties
Composite materials
Polymer matrix
Permittivity
Frequency response
Elongation
Tensile strength
Electron microscopes
Sintering
Hardness
Scanning
X ray diffraction

Keywords

  • Electrical properties
  • Electrical resistivity
  • Magnetic polymer
  • Mechanical properties

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Science (miscellaneous)
  • Chemical Engineering(all)
  • Materials Chemistry

Cite this

Effect of nickel-cobalt-zinc ferrite filler on electrical and mechanical properties of thermoplastic natural rubber composites. / Puryanti, Dwi; Ahmad, Sahrim; Abdullah, Mustaffa Hj.

In: Polymer - Plastics Technology and Engineering, Vol. 45, No. 4, 2006, p. 561-567.

Research output: Contribution to journalArticle

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