Malaysian
Journal of Analytical Sciences Vol 20 No 5 (2016): 1084 - 1089
DOI:
http://dx.doi.org/10.17576/mjas-2016-2005-13
EFFECT OF MULTI WALLED CARBON NANOTUBES ON THERMAL
CONDUCTIVITY OF POLYLACTIC ACID NANOCOMPOSITE
(Kesan Penambahan Nanotiub Karbon Berbilang Dinding
Ke Atas Kekonduksian Terma Polilaktik Asid Nanokomposit)
Adilah Mat Ali1, Sahrim Hj Ahmad1*,
Mou’ad A.Tarawneh2
1School of Applied Physics, Faculty of Science and
Technology,
Universiti
Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
2Department of Physics, Collage of Science,
Al-Hussein Bin
Talal University, P.O. Box 20, Ma’an, Jordan
*Corresponding author: sahrim@ukm.edu.my
Received: 10
June 2015; Accepted: 21 July 2016
Abstract
Multi
walled carbon nanotubes (MWCNT) hold the increasing interest in many different
fields. To employ MWCNT as an effective reinforcement in order to enhance the
thermal conductivity of polylactic acid (PLA) modified with liquid natural
rubber (LNR), proper dispersion and appropriate interfacial adhesion between
MWCNT and PLA/LNR have to be guaranteed. This paper used ultrasonic technique
as the method to help to improve the dispersion of MWCNT in PLA/LNR matrix. The
result shown that the sample with 3.5 wt.% of MWCNT provided higher thermal
conductivity which is believe to be the optimum loading due to better
dispersion of MWCNT in PLA/LNR matrix. The 4 wt.% of MWCNT shows decreasing of
thermal conductivity due to the presence of agglomeration of MWCNT. The results
confirmed by Scanning Electron Microscopy (SEM) micrograph. Fourier Transform Infrared (FTIR) spectra shown that
there were no chemical changes happen.
Keywords: polylactic acid, multi-walled carbon
nanotubes, thermal conductivity, nanocomposites, ultrasonic
Abstrak
Tiub
karbon berbilang dinding (MWCNT) telah menarik minat dalam pelbagai bidang yang
berbeza. Bagi memastikan MWCNT dapat digunakan secara berkesan sebagai agen
pengukuh dalam peningkatan kekonduksian terma polilaktik asid (
Kata kunci: polilaktik asid, tiub karbon berbilang
dinding, kekonduksian terma, nanokomposit, ultrasonik
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