Structural and magnetic properties of type-M barium ferrite-Thermoplastic natural rubber nanocomposites

Nurhidayaty Mokhtar, Mustaffa Hj Abdullah, Sahrim Ahmad

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Structural and magnetic properties of type-M barium ferrite (BaFe 12O 19) nanoparticles (~ 20 nm) embedded in non-magnetic thermoplastic natural rubber (TPNR) matrices were investigated. The TPNR matrices were prepared from high density polyethylene (HDPE) and natural rubber (NR) in the weight ratios of 80:20 and 60:40, respectively, with 10 wt% of NR in the form of liquid natural rubber (LNR) which act as a compatibiliser. BaFe 12O 19-filled nanocomposites with 2-12 wt% BaFe 12O 19 ferrite were prepared using a melt- blending technique. Magnetic hysteresis was measured using a vibrating sample magnetometer (VSM) in a maximum field of 10 kOe at room temperature (25oC). The saturation magnetisation (MS), remanence (MR) and coercivity (Hc) were derived from the hysteresis loops. The results show that the structural and magnetic properties of nanocomposites depend on both the ferrite content and the composition of the natural rubber or plastic in the nanocomposites. All the nanocomposites exhibit an exchange bias-like phenomenon resulting from the exchange coupling of spins at the interface between the core ferrimagnetic region and the disordered surface region of the nanoparticles.

Original languageEnglish
Pages (from-to)1125-1131
Number of pages7
JournalSains Malaysiana
Volume41
Issue number9
Publication statusPublished - Sep 2012

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rubber
barium
ferrites
nanocomposites
magnetic properties
hysteresis
nanoparticles
remanence
matrices
magnetometers
coercivity
polyethylenes
plastics
saturation
magnetization
room temperature
liquids

Keywords

  • Exchange bias
  • High density polyethylene
  • Hysteresis
  • Magnetic properties
  • Natural rubber

ASJC Scopus subject areas

  • General

Cite this

Structural and magnetic properties of type-M barium ferrite-Thermoplastic natural rubber nanocomposites. / Mokhtar, Nurhidayaty; Abdullah, Mustaffa Hj; Ahmad, Sahrim.

In: Sains Malaysiana, Vol. 41, No. 9, 09.2012, p. 1125-1131.

Research output: Contribution to journalArticle

Mokhtar, Nurhidayaty ; Abdullah, Mustaffa Hj ; Ahmad, Sahrim. / Structural and magnetic properties of type-M barium ferrite-Thermoplastic natural rubber nanocomposites. In: Sains Malaysiana. 2012 ; Vol. 41, No. 9. pp. 1125-1131.
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