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...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publications Ltd
2019
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| Online Access: | http://umpir.ump.edu.my/id/eprint/24982/1/Effects%20of%20micrometre-sized%20graphite%20flake%20to%20reinforce.pdf |
| _version_ | 1825812708986978304 |
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| 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 |
| collection | UMP |
| 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. |
| first_indexed | 2024-03-06T12:33:10Z |
| format | Article |
| id | UMPir24982 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T12:33:10Z |
| publishDate | 2019 |
| publisher | SAGE Publications Ltd |
| record_format | dspace |
| spelling | UMPir249822019-10-14T06:24:08Z 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. (Published) https://doi.org/10.1177/0967391118811218 https://doi.org/10.1177/0967391118811218 |
| 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 |
| title | 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_short | 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 |
| topic | QP Physiology QR Microbiology TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/24982/1/Effects%20of%20micrometre-sized%20graphite%20flake%20to%20reinforce.pdf |
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