Sains
Malaysiana 41(4)(2012): 453-458
Sifat Magnet, Mikrostruktur dan
Morfologi Komposit Getah Asli
Termoplastik Berpengisi Ferit NiZn/MWNT
(Magnetic
Properties, Microstructure and Morphology of Thermoplastic Natural
Rubber
Composite Reinforced with NiZn Ferrite/MWNT)
Lih-Jiun
Yu*, Sahrim Hj. Ahmad, Ing Kong, Sivanesan Appadu
&
Moayad Husein Flaifel
Pusat
Pengajian Fizik Gunaan, Fakulti Sains dan Teknologi, Universiti Kebangsaan
Malaysia
43600
Bangi, Selangor D. E., Malaysia
Diserahkan:
7 Jun 2011 / Diterima: 24 Ogos 2011
ABSTRAK
Ferit
NiZn dan nanotiub karbon diadunkan ke dalam getah asli termoplastik mengikut
nisbah campuran 1:1. Kesan penambahan pengisi ke atas sifat magnet, struktur
dan morfologi nanokomposit dikaji. Dua parameter magnet, iaitu pemagnetan
tepuan dan daya koersif nanokomposit didapati bergantung kepada penambahan
pengisi dalam matriks. Interaksi antara kedua-dua pengisi dalam matriks TPNR
juga mempengaruh sifat magnet. Pengisi hibrid (ferit NiZn dan nanotiub karbon)
bertabur sekata dalam matriks termoplastik getah asli. Kehabluran semi-amorfus
fasa polipropilena didapati berlawanan dengan peningkatan kehabluran pengisi
apabila kandungan pengisi bertambah
.
Kata
kunci: Komposit getah asli termoplastik; komposit hybrid; sifat magnet
ABSTRACT
NiZn
ferrite and carbon nanotube were blended with TPNR according to the mixing
ratio 1:1. Filler addition effects on magnetic properties, microstructure, and
morphology of the nanocomposite were studied. Saturation magnetization and coercive
force of nanocomposites were found depend on the filler loading in the matrix.
The interaction between both fillers in the TPNR matrix was found to effect on
the magnetic properties. The hybrid fillers (NiZn ferrite and carbon nanotube)
were distributed homogenous in the thermoplastic natural rubber matrix. The
crystallinity of semi-amorphous polypropylene was found to decreases, opposite
to the increment of fillers when the fillers content was increased.
Keywords:
Hybrid composite; magnetic properties; thermoplastic natural rubber
ABSTRACT
Ferit
NiZn dan nanotiub karbon diadunkan ke dalam getah asli termoplastik mengikut
nisbah campuran 1:1. Kesan penambahan pengisi ke atas sifat magnet, struktur
dan morfologi nanokomposit dikaji. Dua parameter magnet, iaitu pemagnetan
tepuan dan daya koersif nanokomposit didapati bergantung kepada penambahan
pengisi dalam matriks. Interaksi antara kedua-dua pengisi dalam matriks TPNR
juga mempengaruh sifat magnet. Pengisi hibrid (ferit NiZn dan nanotiub karbon)
bertabur sekata dalam matriks termoplastik getah asli. Kehabluran semi-amorfus
fasa polipropileha didapati berlawanan dengan peningkatan kehabluran pengisi
apabila kandungan pengisi bertambah
.
Kata
kunci: Komposit getah asli termoplastik; komposit hybrid; sifat magnet
ABSTRAK
NiZn
ferrite and carbon nanotube were blended with TPNR according to the mixing
ratio 1:1. Filler addition effects on magnetic properties, microstructure and
morphology of the nanocomposite were studied. Saturation magnetization and coercive
force of nanocomposites were found depend on the filler loading in the matrix.
The interaction between both fillers in the TPNR matrix was found to effect on
the magnetic properties. The hybrid fillers (NiZn ferrite and carbon nanotube)
were distributed homogenous in the thermoplastic natural rubber matrix. The
crystallinity of semi-amorphous polypropylehe was found to decreases, opposite
to the increment of fillers when the fillers content was increased.
Keywords:
Hybrid composite; magnetic properties; thermoplastic natural rubber
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*Pengarang
untuk surat-menyurat; email: y_jiun@hotmail.com
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