Structures and Properties of Injection-Molded Biodegradable Poly(Lactic Acid) Nanocomposites Prepared with Untreated and Treated Multiwalled Carbon Nanotubes

Structures and Properties of Injection-Molded Biodegradable Poly(Lactic Acid) Nanocomposites Prepared with Untreated and Treated Multiwalled Carbon Nanotubes

Structural, mechanical, thermal, and electrical properties of low-loaded (0−1.5 wt%), untreated, and treated (with heat and nitric acid) multiwalled carbon nanotubes (MWCNTs)/poly (lactic acid) (PLA) nanocomposites have been studied. Among all synthesized composites, acid-treated 1.0 wt% MWCNTs rein...

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Main Authors: M. F., Mina, Beg, M. D. H., M. R., Islam, A., Nizam, A. K. M., Moshiul Alam, R. M., Yunus
Format: Article
Language:English
Published: Wiley Online Library 2014
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/5371/
http://umpir.ump.edu.my/id/eprint/5371/
http://umpir.ump.edu.my/id/eprint/5371/
http://umpir.ump.edu.my/id/eprint/5371/1/Structures%20and%20Properties%20of%20Injection-Molded%20Biodegradable%20Poly%28Lactic%20Acid%29%20Nanocomposites%20Prepared%20With%20Untreated%20and%20Treated%20Multiwalled%20Carbon%20Nanotubes.pdf
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spelling ump-53712018-03-08T07:32:19Z http://umpir.ump.edu.my/id/eprint/5371/ Structures and Properties of Injection-Molded Biodegradable Poly(Lactic Acid) Nanocomposites Prepared with Untreated and Treated Multiwalled Carbon Nanotubes M. F., Mina Beg, M. D. H. M. R., Islam A., Nizam A. K. M., Moshiul Alam R. M., Yunus TP Chemical technology Structural, mechanical, thermal, and electrical properties of low-loaded (0−1.5 wt%), untreated, and treated (with heat and nitric acid) multiwalled carbon nanotubes (MWCNTs)/poly (lactic acid) (PLA) nanocomposites have been studied. Among all synthesized composites, acid-treated 1.0 wt% MWCNTs reinforced PLA shows superior tensile strength and modulus to those shown by other samples. All nanocomposites including the pure PLA exhibit the orthorhombic β-form crystalline structure with low degree of crystallization, as demonstrated by X-ray diffraction study. Differential scanning calorimetry (DSC) of injection molded samples, respectively, reveals an enhancement of PLA crystallinity by 8% and 14% for untreated and treated nanotubes, relating to the observed improvement in mechanical properties. Nanocomposites show double melting behavior when crystallized nonisothermally by DSC, whilst the pure PLA shows single melting character. Thermogravimetric analysis discloses that the MWCNTs-loaded sample degraded faster than PLA. Surface resistivity of the nanocomposites is found to be dropped drastically by a factor of 1013 with a low loading of MWCNTs (1.5 wt%). A detailed discussion and correlation of the observed structures and properties are presented in this study. POLYM. ENG. SCI., 54:317–326, 2014. © 2013 Society of Plastics Engineers Wiley Online Library 2014 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/5371/1/Structures%20and%20Properties%20of%20Injection-Molded%20Biodegradable%20Poly%28Lactic%20Acid%29%20Nanocomposites%20Prepared%20With%20Untreated%20and%20Treated%20Multiwalled%20Carbon%20Nanotubes.pdf M. F., Mina and Beg, M. D. H. and M. R., Islam and A., Nizam and A. K. M., Moshiul Alam and R. M., Yunus (2014) Structures and Properties of Injection-Molded Biodegradable Poly(Lactic Acid) Nanocomposites Prepared with Untreated and Treated Multiwalled Carbon Nanotubes. Polymer Engineering & Science, 54 (2). pp. 317-326. ISSN 0032-3888 http://dx.doi.org/10.1002/pen.23564 DOI: 10.1002/pen.23564
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
M. F., Mina
Beg, M. D. H.
M. R., Islam
A., Nizam
A. K. M., Moshiul Alam
R. M., Yunus
Structures and Properties of Injection-Molded Biodegradable Poly(Lactic Acid) Nanocomposites Prepared with Untreated and Treated Multiwalled Carbon Nanotubes
description Structural, mechanical, thermal, and electrical properties of low-loaded (0−1.5 wt%), untreated, and treated (with heat and nitric acid) multiwalled carbon nanotubes (MWCNTs)/poly (lactic acid) (PLA) nanocomposites have been studied. Among all synthesized composites, acid-treated 1.0 wt% MWCNTs reinforced PLA shows superior tensile strength and modulus to those shown by other samples. All nanocomposites including the pure PLA exhibit the orthorhombic β-form crystalline structure with low degree of crystallization, as demonstrated by X-ray diffraction study. Differential scanning calorimetry (DSC) of injection molded samples, respectively, reveals an enhancement of PLA crystallinity by 8% and 14% for untreated and treated nanotubes, relating to the observed improvement in mechanical properties. Nanocomposites show double melting behavior when crystallized nonisothermally by DSC, whilst the pure PLA shows single melting character. Thermogravimetric analysis discloses that the MWCNTs-loaded sample degraded faster than PLA. Surface resistivity of the nanocomposites is found to be dropped drastically by a factor of 1013 with a low loading of MWCNTs (1.5 wt%). A detailed discussion and correlation of the observed structures and properties are presented in this study. POLYM. ENG. SCI., 54:317–326, 2014. © 2013 Society of Plastics Engineers
format Article
author M. F., Mina
Beg, M. D. H.
M. R., Islam
A., Nizam
A. K. M., Moshiul Alam
R. M., Yunus
author_facet M. F., Mina
Beg, M. D. H.
M. R., Islam
A., Nizam
A. K. M., Moshiul Alam
R. M., Yunus
author_sort M. F., Mina
title Structures and Properties of Injection-Molded Biodegradable Poly(Lactic Acid) Nanocomposites Prepared with Untreated and Treated Multiwalled Carbon Nanotubes
title_short Structures and Properties of Injection-Molded Biodegradable Poly(Lactic Acid) Nanocomposites Prepared with Untreated and Treated Multiwalled Carbon Nanotubes
title_full Structures and Properties of Injection-Molded Biodegradable Poly(Lactic Acid) Nanocomposites Prepared with Untreated and Treated Multiwalled Carbon Nanotubes
title_fullStr Structures and Properties of Injection-Molded Biodegradable Poly(Lactic Acid) Nanocomposites Prepared with Untreated and Treated Multiwalled Carbon Nanotubes
title_full_unstemmed Structures and Properties of Injection-Molded Biodegradable Poly(Lactic Acid) Nanocomposites Prepared with Untreated and Treated Multiwalled Carbon Nanotubes
title_sort structures and properties of injection-molded biodegradable poly(lactic acid) nanocomposites prepared with untreated and treated multiwalled carbon nanotubes
publisher Wiley Online Library
publishDate 2014
url http://umpir.ump.edu.my/id/eprint/5371/
http://umpir.ump.edu.my/id/eprint/5371/
http://umpir.ump.edu.my/id/eprint/5371/
http://umpir.ump.edu.my/id/eprint/5371/1/Structures%20and%20Properties%20of%20Injection-Molded%20Biodegradable%20Poly%28Lactic%20Acid%29%20Nanocomposites%20Prepared%20With%20Untreated%20and%20Treated%20Multiwalled%20Carbon%20Nanotubes.pdf
first_indexed 2023-09-18T22:00:41Z
last_indexed 2023-09-18T22:00:41Z
_version_ 1777414377580789760

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