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Photo-degradation of renewable biopolymer blended with thermoplastic high density polyethylene (HDPE)

High Density Polyethylene (HDPE) is one type of thermoplastic with varies applications but non-biodegradable material while biopolymer (BP) is environmentally friendly and degradable materials. However, BP has poor mechanical characteristics and restrict their capacity for varying in applications...

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主要作者:	Sulong, Nurulsaidatulsyida
格式:	Thesis
语言:	English English English
出版:	2022
主题:	TA Engineering (General). Civil engineering (General)
在线阅读:	http://eprints.uthm.edu.my/8469/1/24p%20NURULSAIDATULSYIDA%20SULONG.pdf http://eprints.uthm.edu.my/8469/2/NURULSAIDATULSYIDA%20SULONG%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/8469/3/NURULSAIDATULSYIDA%20SULONG%20WATERMARK.pdf http://eprints.uthm.edu.my/8469/
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id	my.uthm.eprints.8469
record_format	eprints
spelling	my.uthm.eprints.84692023-03-01T07:02:03Z http://eprints.uthm.edu.my/8469/ Photo-degradation of renewable biopolymer blended with thermoplastic high density polyethylene (HDPE) Sulong, Nurulsaidatulsyida TA Engineering (General). Civil engineering (General) High Density Polyethylene (HDPE) is one type of thermoplastic with varies applications but non-biodegradable material while biopolymer (BP) is environmentally friendly and degradable materials. However, BP has poor mechanical characteristics and restrict their capacity for varying in applications. Therefore, in this study, HDPE was blended with BP in liquid and particle form to produce BPL/ BPP. The composition ratio of BP blended with HDPE were 5, 10, 15, 20, 25 and 30% wt/wt of BP. These BP, HDPE, BPL/ BPP with different percentages of loading then were exposed to different UV exposure (250h, 500h, 750h, 1000h, 2000h, and 3000h) to identify the photo-degradation process. The formation of functional group of urethane linkages and other absorption peak was identified by using Fourier Transform Infrared Spectroscopy (FTIR). Norrish I and Norrish II reaction was taking place that produced ketone, amide group and carboxylic acid when increase in UV irradiation exposure that identified the photo-degradation process occurs in BPL/ BPP. By increasing percentages of BP loading, Melt Flow Index (MFI) shows decreasing in results indicate good flowability and improved its processability. Dynamic Mechanical Analysis (DMA) also shows a single peak of Tg indicated miscibility blending of BPL and BPP in all percentages of loading. BPL and BPP show higher tensile stress and hardness results as compared to BP. This is revealed the new blended polymer enhanced the mechanical properties of BP itself. Meanwhile, Scanning Electron Microscope (SEM) of BP shows brittle fracture morphology while HDPE shows ductile fracture and BPL or BPP show ductile to brittle morphological structure due to increasing in percentages of BP loading. Ultimately, BPL30-3000h, spider-web-like structure appeared while for BPP30-3000h, revealed a fine lamellar type of structure. Hence, BPL/ BPP successfully produced, and photo-degradation process occur and having good mechanical properties as compared to single materials itself (BP or HDPE). 2022-05 Thesis NonPeerReviewed text en http://eprints.uthm.edu.my/8469/1/24p%20NURULSAIDATULSYIDA%20SULONG.pdf text en http://eprints.uthm.edu.my/8469/2/NURULSAIDATULSYIDA%20SULONG%20COPYRIGHT%20DECLARATION.pdf text en http://eprints.uthm.edu.my/8469/3/NURULSAIDATULSYIDA%20SULONG%20WATERMARK.pdf Sulong, Nurulsaidatulsyida (2022) Photo-degradation of renewable biopolymer blended with thermoplastic high density polyethylene (HDPE). Doctoral thesis, Universiti Tun Hussein Onn Malaysia.
institution	Universiti Tun Hussein Onn Malaysia
building	UTHM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tun Hussein Onn Malaysia
content_source	UTHM Institutional Repository
url_provider	http://eprints.uthm.edu.my/
language	English English English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Sulong, Nurulsaidatulsyida Photo-degradation of renewable biopolymer blended with thermoplastic high density polyethylene (HDPE)
description	High Density Polyethylene (HDPE) is one type of thermoplastic with varies applications but non-biodegradable material while biopolymer (BP) is environmentally friendly and degradable materials. However, BP has poor mechanical characteristics and restrict their capacity for varying in applications. Therefore, in this study, HDPE was blended with BP in liquid and particle form to produce BPL/ BPP. The composition ratio of BP blended with HDPE were 5, 10, 15, 20, 25 and 30% wt/wt of BP. These BP, HDPE, BPL/ BPP with different percentages of loading then were exposed to different UV exposure (250h, 500h, 750h, 1000h, 2000h, and 3000h) to identify the photo-degradation process. The formation of functional group of urethane linkages and other absorption peak was identified by using Fourier Transform Infrared Spectroscopy (FTIR). Norrish I and Norrish II reaction was taking place that produced ketone, amide group and carboxylic acid when increase in UV irradiation exposure that identified the photo-degradation process occurs in BPL/ BPP. By increasing percentages of BP loading, Melt Flow Index (MFI) shows decreasing in results indicate good flowability and improved its processability. Dynamic Mechanical Analysis (DMA) also shows a single peak of Tg indicated miscibility blending of BPL and BPP in all percentages of loading. BPL and BPP show higher tensile stress and hardness results as compared to BP. This is revealed the new blended polymer enhanced the mechanical properties of BP itself. Meanwhile, Scanning Electron Microscope (SEM) of BP shows brittle fracture morphology while HDPE shows ductile fracture and BPL or BPP show ductile to brittle morphological structure due to increasing in percentages of BP loading. Ultimately, BPL30-3000h, spider-web-like structure appeared while for BPP30-3000h, revealed a fine lamellar type of structure. Hence, BPL/ BPP successfully produced, and photo-degradation process occur and having good mechanical properties as compared to single materials itself (BP or HDPE).
format	Thesis
author	Sulong, Nurulsaidatulsyida
author_facet	Sulong, Nurulsaidatulsyida
author_sort	Sulong, Nurulsaidatulsyida
title	Photo-degradation of renewable biopolymer blended with thermoplastic high density polyethylene (HDPE)
title_short	Photo-degradation of renewable biopolymer blended with thermoplastic high density polyethylene (HDPE)
title_full	Photo-degradation of renewable biopolymer blended with thermoplastic high density polyethylene (HDPE)
title_fullStr	Photo-degradation of renewable biopolymer blended with thermoplastic high density polyethylene (HDPE)
title_full_unstemmed	Photo-degradation of renewable biopolymer blended with thermoplastic high density polyethylene (HDPE)
title_sort	photo-degradation of renewable biopolymer blended with thermoplastic high density polyethylene (hdpe)
publishDate	2022
url	http://eprints.uthm.edu.my/8469/1/24p%20NURULSAIDATULSYIDA%20SULONG.pdf http://eprints.uthm.edu.my/8469/2/NURULSAIDATULSYIDA%20SULONG%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/8469/3/NURULSAIDATULSYIDA%20SULONG%20WATERMARK.pdf http://eprints.uthm.edu.my/8469/
_version_	1759691535764422656
score	13.250246

Photo-degradation of renewable biopolymer blended with thermoplastic high density polyethylene (HDPE)

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