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Effects of micrometre-sized graphite flake to reinforce the performances of poly (lactic acid) thermoplastic biocomposites

Biocomposites of poly(lactic acid) (PLA) and micrometre-sized graphite (GP) flake powder with 0–30 wt% GP contents have been prepared using extrusion moulding followed by compression moulding. The pure PLA and PLA-GP composites (PGC) have been examined by Fourier transform infrared (FTIR) spectrosco...

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Main Authors: Alam, Shamsun, Mina, Md. Forhad, Rahman, M. J., Gafur, Md. Abdul, Maria, K. H., Mieno, T., Alam, A. K. M. Moshiul, Beg, M. D. H.
Format: Article
Language:English
Published: SAGE Publications Ltd 2019
Subjects:
QP Physiology
QR Microbiology
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/24982/1/Effects%20of%20micrometre-sized%20graphite%20flake%20to%20reinforce.pdf
http://umpir.ump.edu.my/id/eprint/24982/
https://doi.org/10.1177/0967391118811218
https://doi.org/10.1177/0967391118811218
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spelling my.ump.umpir.249822019-10-14T06:24:08Z http://umpir.ump.edu.my/id/eprint/24982/ Effects of micrometre-sized graphite flake to reinforce the performances of poly (lactic acid) thermoplastic biocomposites Alam, Shamsun Mina, Md. Forhad Rahman, M. J. Gafur, Md. Abdul Maria, K. H. Mieno, T. Alam, A. K. M. Moshiul Beg, M. D. H. QP Physiology QR Microbiology TP Chemical technology Biocomposites of poly(lactic acid) (PLA) and micrometre-sized graphite (GP) flake powder with 0–30 wt% GP contents have been prepared using extrusion moulding followed by compression moulding. The pure PLA and PLA-GP composites (PGC) have been examined by Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy (RS), X-ray diffraction (XRD) technique, scanning electron microscopy (SEM), transmission electron microscopy (TEM), mechanical and micromechanical testing, differential thermal analysis (DTA) and thermogravimetric analysis (TGA). FTIR spectra confirm the physical bond formation between GP and PLA. RS distinguishes the D-band spectra of pure PLA and PGC. XRD shows a partially crystalline structure in the PLA. SEM and TEM exhibit a clear dispersion of GP particles in PLA matrix at lower loading and aggregates at higher loading. With an increase of filler content, the tensile and flexural strengths decrease, but the Young’s and tangent moduli are observed to increase by 58% and 77%, respectively. These increments represent an increase in the stiffness of the materials and are found to be consistent with the theoretical values. A decrease in microhardness with increase in filler content is also observed. Both the DTA and TGA reveal an increased thermal stability of the composites. SAGE Publications Ltd 2019-01-01 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/24982/1/Effects%20of%20micrometre-sized%20graphite%20flake%20to%20reinforce.pdf Alam, Shamsun and Mina, Md. Forhad and Rahman, M. J. and Gafur, Md. Abdul and Maria, K. H. and Mieno, T. and Alam, A. K. M. Moshiul and Beg, M. D. H. (2019) Effects of micrometre-sized graphite flake to reinforce the performances of poly (lactic acid) thermoplastic biocomposites. Polymers and Polymer Composites, 27 (1). pp. 20-32. ISSN 0967-3911 https://doi.org/10.1177/0967391118811218 https://doi.org/10.1177/0967391118811218
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic QP Physiology
QR Microbiology
TP Chemical technology
spellingShingle QP Physiology
QR Microbiology
TP Chemical technology
Alam, Shamsun
Mina, Md. Forhad
Rahman, M. J.
Gafur, Md. Abdul
Maria, K. H.
Mieno, T.
Alam, A. K. M. Moshiul
Beg, M. D. H.
Effects of micrometre-sized graphite flake to reinforce the performances of poly (lactic acid) thermoplastic biocomposites
description Biocomposites of poly(lactic acid) (PLA) and micrometre-sized graphite (GP) flake powder with 0–30 wt% GP contents have been prepared using extrusion moulding followed by compression moulding. The pure PLA and PLA-GP composites (PGC) have been examined by Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy (RS), X-ray diffraction (XRD) technique, scanning electron microscopy (SEM), transmission electron microscopy (TEM), mechanical and micromechanical testing, differential thermal analysis (DTA) and thermogravimetric analysis (TGA). FTIR spectra confirm the physical bond formation between GP and PLA. RS distinguishes the D-band spectra of pure PLA and PGC. XRD shows a partially crystalline structure in the PLA. SEM and TEM exhibit a clear dispersion of GP particles in PLA matrix at lower loading and aggregates at higher loading. With an increase of filler content, the tensile and flexural strengths decrease, but the Young’s and tangent moduli are observed to increase by 58% and 77%, respectively. These increments represent an increase in the stiffness of the materials and are found to be consistent with the theoretical values. A decrease in microhardness with increase in filler content is also observed. Both the DTA and TGA reveal an increased thermal stability of the composites.
format Article
author Alam, Shamsun
Mina, Md. Forhad
Rahman, M. J.
Gafur, Md. Abdul
Maria, K. H.
Mieno, T.
Alam, A. K. M. Moshiul
Beg, M. D. H.
author_facet Alam, Shamsun
Mina, Md. Forhad
Rahman, M. J.
Gafur, Md. Abdul
Maria, K. H.
Mieno, T.
Alam, A. K. M. Moshiul
Beg, M. D. H.
author_sort Alam, Shamsun
title Effects of micrometre-sized graphite flake to reinforce the performances of poly (lactic acid) thermoplastic biocomposites
title_short Effects of micrometre-sized graphite flake to reinforce the performances of poly (lactic acid) thermoplastic biocomposites
title_full Effects of micrometre-sized graphite flake to reinforce the performances of poly (lactic acid) thermoplastic biocomposites
title_fullStr Effects of micrometre-sized graphite flake to reinforce the performances of poly (lactic acid) thermoplastic biocomposites
title_full_unstemmed Effects of micrometre-sized graphite flake to reinforce the performances of poly (lactic acid) thermoplastic biocomposites
title_sort effects of micrometre-sized graphite flake to reinforce the performances of poly (lactic acid) thermoplastic biocomposites
publisher SAGE Publications Ltd
publishDate 2019
url http://umpir.ump.edu.my/id/eprint/24982/1/Effects%20of%20micrometre-sized%20graphite%20flake%20to%20reinforce.pdf
http://umpir.ump.edu.my/id/eprint/24982/
https://doi.org/10.1177/0967391118811218
https://doi.org/10.1177/0967391118811218
_version_ 1648741178758135808
score 13.211869

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