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Mechanical and flammability properties of poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends and nanocomposites: Effects of compatibilizer and graphene

Poly(lactic acid) (PLA)/polybutylene adipate co-terephthalate (PBAT) blends were prepared by melt blending and compatibilized by glycidyl methacrylate (GMA). The effect of graphene nanoplatelets (GNP) on these compatibilized blends were investigated by incorporating GNP at different content. The for...

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Main Authors: Shrivastava, Nilesh Kumar, Ooi, Shu Wooi, Hassan, Azman, Inuwa, Ibrahim Mohammed
Format: Article
Language:English
Published: Penerbit UTM Press 2018
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/86546/1/NileshKumarShrivastava2018_MechanicalandFlammabilityPropertiesofPolyLactic.pdf
http://eprints.utm.my/id/eprint/86546/
http://dx.doi.org/10.11113/mjfas.v14n4.1233
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spelling my.utm.865462020-09-30T08:57:54Z http://eprints.utm.my/id/eprint/86546/ Mechanical and flammability properties of poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends and nanocomposites: Effects of compatibilizer and graphene Shrivastava, Nilesh Kumar Ooi, Shu Wooi Hassan, Azman Inuwa, Ibrahim Mohammed TP Chemical technology Poly(lactic acid) (PLA)/polybutylene adipate co-terephthalate (PBAT) blends were prepared by melt blending and compatibilized by glycidyl methacrylate (GMA). The effect of graphene nanoplatelets (GNP) on these compatibilized blends were investigated by incorporating GNP at different content. The formulated blend and nanocomposites were characterized for mechanical, morphological, thermal and flammability properties by using universal testing machine, impact tester, field emission scanning electron microscope (FESEM), x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), limiting oxygen index (LOI) and UL-94 respectively. The incorporation of 8 phr GMA into PLA/PBAT (75:25) blend as a compatibilizer results in a significant increase in impact strength (more than 14 times higher) compared to the uncompatibilized blend. Young's modulus and tensile strength of compatibilized PLA/PBAT nanocomposites increased upon addition of GNP and reached maximum values at 4 phr before decreasing slightly. However, impact strength decreased with increasing GNP contents. The thermal stability and the flame retardancy of the GNP reinforced blend nanocomposites were also improved with an increase in nanofiller content and the maximum values for the nanocomposites were achieved at 6 phr. Interestingly, the nanocomposites samples showed a UL-94 rating of V0 at 4 and 6 phr of GNP. Morphological studies using FESEM showed the GNP were evenly distributed and dispersed in the PLA/PBAT nanocomposites. The current methodology to prepare PLA/PBAT blend nanocomposite is an economical way to produce high strength biodegradable polymer which also has good flame retardancy. Penerbit UTM Press 2018 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/86546/1/NileshKumarShrivastava2018_MechanicalandFlammabilityPropertiesofPolyLactic.pdf Shrivastava, Nilesh Kumar and Ooi, Shu Wooi and Hassan, Azman and Inuwa, Ibrahim Mohammed (2018) Mechanical and flammability properties of poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends and nanocomposites: Effects of compatibilizer and graphene. Malaysian Journal of Fundamental and Applied Sciences, 14 (4). pp. 425-431. ISSN 2289-5981 http://dx.doi.org/10.11113/mjfas.v14n4.1233 DOI:10.11113/mjfas.v14n4.1233
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Shrivastava, Nilesh Kumar
Ooi, Shu Wooi
Hassan, Azman
Inuwa, Ibrahim Mohammed
Mechanical and flammability properties of poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends and nanocomposites: Effects of compatibilizer and graphene
description Poly(lactic acid) (PLA)/polybutylene adipate co-terephthalate (PBAT) blends were prepared by melt blending and compatibilized by glycidyl methacrylate (GMA). The effect of graphene nanoplatelets (GNP) on these compatibilized blends were investigated by incorporating GNP at different content. The formulated blend and nanocomposites were characterized for mechanical, morphological, thermal and flammability properties by using universal testing machine, impact tester, field emission scanning electron microscope (FESEM), x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), limiting oxygen index (LOI) and UL-94 respectively. The incorporation of 8 phr GMA into PLA/PBAT (75:25) blend as a compatibilizer results in a significant increase in impact strength (more than 14 times higher) compared to the uncompatibilized blend. Young's modulus and tensile strength of compatibilized PLA/PBAT nanocomposites increased upon addition of GNP and reached maximum values at 4 phr before decreasing slightly. However, impact strength decreased with increasing GNP contents. The thermal stability and the flame retardancy of the GNP reinforced blend nanocomposites were also improved with an increase in nanofiller content and the maximum values for the nanocomposites were achieved at 6 phr. Interestingly, the nanocomposites samples showed a UL-94 rating of V0 at 4 and 6 phr of GNP. Morphological studies using FESEM showed the GNP were evenly distributed and dispersed in the PLA/PBAT nanocomposites. The current methodology to prepare PLA/PBAT blend nanocomposite is an economical way to produce high strength biodegradable polymer which also has good flame retardancy.
format Article
author Shrivastava, Nilesh Kumar
Ooi, Shu Wooi
Hassan, Azman
Inuwa, Ibrahim Mohammed
author_facet Shrivastava, Nilesh Kumar
Ooi, Shu Wooi
Hassan, Azman
Inuwa, Ibrahim Mohammed
author_sort Shrivastava, Nilesh Kumar
title Mechanical and flammability properties of poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends and nanocomposites: Effects of compatibilizer and graphene
title_short Mechanical and flammability properties of poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends and nanocomposites: Effects of compatibilizer and graphene
title_full Mechanical and flammability properties of poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends and nanocomposites: Effects of compatibilizer and graphene
title_fullStr Mechanical and flammability properties of poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends and nanocomposites: Effects of compatibilizer and graphene
title_full_unstemmed Mechanical and flammability properties of poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends and nanocomposites: Effects of compatibilizer and graphene
title_sort mechanical and flammability properties of poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends and nanocomposites: effects of compatibilizer and graphene
publisher Penerbit UTM Press
publishDate 2018
url http://eprints.utm.my/id/eprint/86546/1/NileshKumarShrivastava2018_MechanicalandFlammabilityPropertiesofPolyLactic.pdf
http://eprints.utm.my/id/eprint/86546/
http://dx.doi.org/10.11113/mjfas.v14n4.1233
_version_ 1680321062019006464
score 13.211869

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