Sains Malaysiana 45(8)(2016): 1259–1263

Kajian Sifat Mekanik Nanokomposit Epoksi Berpenguat Gentian Hibrid Nanotiub Karbon dan Nanozarah Tanah Liat

(Mechanical Properties Study of Epoxy Nanocomposite Reinforced Hybrid Fibre Carbon Nanotubes and Nano Clay)

MOHD HAFIZUDDIN AB GHANI¹*, MOHD NAZRY SALLEH¹, RUEY SHAN CHEN¹,

SAHRIM AHMAD¹,  ISMAIL HANAFI¹, NISHATA ROYAN RAJENDRAN ROYAN²

 & MOHD NAZRI IDRIS³

¹Pusat Pengajian Fizik Gunaan, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia

43600 Bangi, Selangor Darul Ehsan, Malaysia

²Jabatan Kejuruteraan Mekanik dan Bahan, Fakulti Kejuruteraan dan Alam Bina, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia

³Pusat Pengajian Kejuruteraan Bahan dan Sumber Mineral, Universiti Sains Malaysia, Kampus Kejuruteraan, 14300 Nibong Tebal, Pulau Pinang, Malaysia

Diserahkan: 20 April 2015/Diterima: 20 November 2015

ABSTRAK

Penyelidikan ini dijalankan bagi mengkaji sifat mekanik nanokomposit epoksi berpenguat gentian hibrid nanotiub karbon berbilang dinding (MWCNT) dan nanozarah tanah liat (NC). Nanokomposit berpenguat hibrid nanozarah telah disediakan melalui kaedah kacauan mekanik dan sampel dengan jumlah nanozarah berbeza dibentuk menggunakan pengacuan mampatan. Dalam ujian lenturan yang dijalankan, didapati sampel hibrid memberikan nilai kekuatan yang lebih tinggi berbanding sampel tunggal. Ujian terhadap sifat hentaman nanokomposit epoksi berpenguat gentian nanozarah menunjukkan bahawa penambahan gentian terhadap sampel tidak dapat meningkatkan sifat ketahanan daya hentaman yang dikenakan. Namun demikian, sampel yang mengandungi gentian hibrid nano merekodkan nilai daya tahan hentaman yang lebih tinggi berbanding sampel tunggal. Mikrograf pengimbas elektron (SEM) mengesahkan kesan serakan pengisi hibrid dan ikatan antara muka dalam matriks yang baik. Ini membuktikan bahawa gentian hibrid antara nanotiub karbon dan nanozarah tanah liat pada kandungan komposisi tertentu dapat menambahbaik sifat mekanik bahan nanokomposit.

Kata kunci: Epoksi; nanokomposit; nanotiub karbon; nanozarah tanah liat; pengisi hybrid

ABSTRACT

The study was performed to investigate the mechanical properties of epoxy nanocomposite reinforced hybrid fibre multi-wall carbon nanotubes (MWCNT) and nanoclay (NC). Nanocomposite hybrid nanoparticles were prepared by using mechanical stirrer and compression molding. From the flexural test measurements, the hybrid specimens gave higher strength than those of the other samples. The impact testing showed that the addition of nanoparticles to the sample cannot increase the samples properties. Scanning electron micrograph (SEM) shows better dispersion of hybrid filler in the matrix, that proves hybrid carbon nanotubes and nanoclay on certain amount of ratios can improve the mechanical properties of nanocomposite materials.

Keywords: Carbon nanotubes; epoxy; hybrid filler; nanoclay; nanocomposite

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*Pengarang untuk surat-menyurat; email: mhafizuddinabghani@gmail.com