Preparation and characterization of poly (lactic acid) / poly (butylene succinate) / graphene oxide composite

The present research study the effect of graphene oxide (GO) on the properties of poly(lactic acid)/poly(butylene succinate), (PLA/PBS). GO was synthesized from graphite through modified Hummers’ method. The synthesized GO was characterized using Fourier Transform Infrared Spectroscopy (FTIR), X-ray...

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Main Author: Md Sukur, Nuraini
Format: Thesis
Language:English
Published: 2017
Subjects:
Online Access:http://psasir.upm.edu.my/id/eprint/71031/1/FS%202017%2089%20-%20IR.pdf
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author Md Sukur, Nuraini
author_facet Md Sukur, Nuraini
author_sort Md Sukur, Nuraini
collection UPM
description The present research study the effect of graphene oxide (GO) on the properties of poly(lactic acid)/poly(butylene succinate), (PLA/PBS). GO was synthesized from graphite through modified Hummers’ method. The synthesized GO was characterized using Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Thermogravimetric analysis (TGA). FTIR and XRD results proved that GO was successfully synthesized. XRD showed that a new broad peak at 12.9 ̊ emerged with the occurrence of graphite layer oxidation. PLA/PBS blends were prepared via melt blending technique. FTIR spectra revealed shifting of functional group peaks to lower wavenumber indicating chemical interaction occurred between PLA and PBS. Tensile strength and modulus decreased with increasing amount of PBS due to PBS elasticity. SEM micrographs of PLA/PBS blends showed immiscibility with more than 20 wt.% of PBS content. Thermal properties of PLA/PBS blend improved with the addition of PBS. From the mechanical and morphological studies, PLA with 20 wt.% PBS loading was chosen as optimum ratio and used for the preparation of PLA/PBS/GO composites. The PLA/PBS/GO composites were prepared via melt blending technique. The mechanical property of the composites improved with the addition of 0.1 wt.% of GO. Thermal analysis of the composites also revealed significant improvement in thermal stability compared to PLA/PBS blend and pristine PLA. SEM micrographs results revealed rougher surfaces when more GO loaded to the PLA/PBS blend. Furthermore, the PLA/PBS/GO composite with 0.1 wt.% GO loading was more water resistance than PLA/PBS blend because GO can act as barrier to the composite. Biodegradability test revealed that the PLA/PBS/GO has the lowest weight lost compared to PLA/PBS blend and neat PLA.
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spelling upm.eprints-710312019-08-09T05:30:36Z http://psasir.upm.edu.my/id/eprint/71031/ Preparation and characterization of poly (lactic acid) / poly (butylene succinate) / graphene oxide composite Md Sukur, Nuraini The present research study the effect of graphene oxide (GO) on the properties of poly(lactic acid)/poly(butylene succinate), (PLA/PBS). GO was synthesized from graphite through modified Hummers’ method. The synthesized GO was characterized using Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Thermogravimetric analysis (TGA). FTIR and XRD results proved that GO was successfully synthesized. XRD showed that a new broad peak at 12.9 ̊ emerged with the occurrence of graphite layer oxidation. PLA/PBS blends were prepared via melt blending technique. FTIR spectra revealed shifting of functional group peaks to lower wavenumber indicating chemical interaction occurred between PLA and PBS. Tensile strength and modulus decreased with increasing amount of PBS due to PBS elasticity. SEM micrographs of PLA/PBS blends showed immiscibility with more than 20 wt.% of PBS content. Thermal properties of PLA/PBS blend improved with the addition of PBS. From the mechanical and morphological studies, PLA with 20 wt.% PBS loading was chosen as optimum ratio and used for the preparation of PLA/PBS/GO composites. The PLA/PBS/GO composites were prepared via melt blending technique. The mechanical property of the composites improved with the addition of 0.1 wt.% of GO. Thermal analysis of the composites also revealed significant improvement in thermal stability compared to PLA/PBS blend and pristine PLA. SEM micrographs results revealed rougher surfaces when more GO loaded to the PLA/PBS blend. Furthermore, the PLA/PBS/GO composite with 0.1 wt.% GO loading was more water resistance than PLA/PBS blend because GO can act as barrier to the composite. Biodegradability test revealed that the PLA/PBS/GO has the lowest weight lost compared to PLA/PBS blend and neat PLA. 2017-05 Thesis NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/71031/1/FS%202017%2089%20-%20IR.pdf Md Sukur, Nuraini (2017) Preparation and characterization of poly (lactic acid) / poly (butylene succinate) / graphene oxide composite. Masters thesis, Universiti Putra Malaysia. Biodegradable plastics Polymeric composites
spellingShingle Biodegradable plastics
Polymeric composites
Md Sukur, Nuraini
Preparation and characterization of poly (lactic acid) / poly (butylene succinate) / graphene oxide composite
title Preparation and characterization of poly (lactic acid) / poly (butylene succinate) / graphene oxide composite
title_full Preparation and characterization of poly (lactic acid) / poly (butylene succinate) / graphene oxide composite
title_fullStr Preparation and characterization of poly (lactic acid) / poly (butylene succinate) / graphene oxide composite
title_full_unstemmed Preparation and characterization of poly (lactic acid) / poly (butylene succinate) / graphene oxide composite
title_short Preparation and characterization of poly (lactic acid) / poly (butylene succinate) / graphene oxide composite
title_sort preparation and characterization of poly lactic acid poly butylene succinate graphene oxide composite
topic Biodegradable plastics
Polymeric composites
url http://psasir.upm.edu.my/id/eprint/71031/1/FS%202017%2089%20-%20IR.pdf
work_keys_str_mv AT mdsukurnuraini preparationandcharacterizationofpolylacticacidpolybutylenesuccinategrapheneoxidecomposite