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Enviromental stress crack resistance (ESCR) analysis of blow moulded high density polyethylene (HDPE) containers exposed to surface active agents (PANOX 19)

ESCR properties of unimodal, bimodal and silane crosslinked bimodal HDPE were investigated as a function of PANOX 19(polyoxyethylated non-ylphenol ether), exposure times in range of 0-1080 hours at 80C in an accordance to the ASTM D2561-95 procedure B. Degradation changes in the three HDPE materials...

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Main Authors:	Wan Abdul Rahman, Wan Aizan, Hashim, Shahrir, Toh, Show Chong, Nadarajah, Nadarajah
Format:	Conference or Workshop Item
Language:	English
Published:	2002
Subjects:	T Technology (General)
Online Access:	http://eprints.utm.my/id/eprint/4866/1/WanAizan2002_EnviromentalStressCrackResistance.pdf http://eprints.utm.my/id/eprint/4866/
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spelling	my.utm.48662017-07-23T03:25:35Z http://eprints.utm.my/id/eprint/4866/ Enviromental stress crack resistance (ESCR) analysis of blow moulded high density polyethylene (HDPE) containers exposed to surface active agents (PANOX 19) Wan Abdul Rahman, Wan Aizan Hashim, Shahrir Toh, Show Chong Nadarajah, Nadarajah T Technology (General) ESCR properties of unimodal, bimodal and silane crosslinked bimodal HDPE were investigated as a function of PANOX 19(polyoxyethylated non-ylphenol ether), exposure times in range of 0-1080 hours at 80C in an accordance to the ASTM D2561-95 procedure B. Degradation changes in the three HDPE materials were monitored by ultimate tensile strength, ultimate strain, drop impact test and characterized by DSC,FTIR and SEM. The mechanical properties occured most rapidly starting at 120 hours duration. This unusual phenomenon was corroborated by chemical measurements (crystalinity and melting temperature). Meanwhile SEM was used to examine surfac cracking. From the results, unimodal HDPE shows the best resistance towards the surface-active agent (SAA). Meanwhile bimodal HDPE shows the worst resistance towards the surface-active agent. Both mechanical and chemical analysis indicates that the oxidative degradation process is confined to the exposed surface of the samples. The three HDPE did not fail in the reasonable time under bottle stress crack (BSC) test conditions, but under drop impact test, a brittle failure mechanism was observed on bimodal HDPE and silane crosslinked HDPE. Blow molded HDPE that exhibit a brittle mode at 360 hours is the bimodal HDPE and 480 hours for silane crosslinked bimodal HDPE, which caused the body of the bottles from cracks. 2002 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/4866/1/WanAizan2002_EnviromentalStressCrackResistance.pdf Wan Abdul Rahman, Wan Aizan and Hashim, Shahrir and Toh, Show Chong and Nadarajah, Nadarajah (2002) Enviromental stress crack resistance (ESCR) analysis of blow moulded high density polyethylene (HDPE) containers exposed to surface active agents (PANOX 19). In: 11th Scientific Conference & 12th Annual General Meeting of The Electron Microscopy Society of Malaysia 2002, 17-18 December 2002, The Eden Garden Hotel, Johor Bahru, Johor. (Unpublished)
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	T Technology (General)
spellingShingle	T Technology (General) Wan Abdul Rahman, Wan Aizan Hashim, Shahrir Toh, Show Chong Nadarajah, Nadarajah Enviromental stress crack resistance (ESCR) analysis of blow moulded high density polyethylene (HDPE) containers exposed to surface active agents (PANOX 19)
description	ESCR properties of unimodal, bimodal and silane crosslinked bimodal HDPE were investigated as a function of PANOX 19(polyoxyethylated non-ylphenol ether), exposure times in range of 0-1080 hours at 80C in an accordance to the ASTM D2561-95 procedure B. Degradation changes in the three HDPE materials were monitored by ultimate tensile strength, ultimate strain, drop impact test and characterized by DSC,FTIR and SEM. The mechanical properties occured most rapidly starting at 120 hours duration. This unusual phenomenon was corroborated by chemical measurements (crystalinity and melting temperature). Meanwhile SEM was used to examine surfac cracking. From the results, unimodal HDPE shows the best resistance towards the surface-active agent (SAA). Meanwhile bimodal HDPE shows the worst resistance towards the surface-active agent. Both mechanical and chemical analysis indicates that the oxidative degradation process is confined to the exposed surface of the samples. The three HDPE did not fail in the reasonable time under bottle stress crack (BSC) test conditions, but under drop impact test, a brittle failure mechanism was observed on bimodal HDPE and silane crosslinked HDPE. Blow molded HDPE that exhibit a brittle mode at 360 hours is the bimodal HDPE and 480 hours for silane crosslinked bimodal HDPE, which caused the body of the bottles from cracks.
format	Conference or Workshop Item
author	Wan Abdul Rahman, Wan Aizan Hashim, Shahrir Toh, Show Chong Nadarajah, Nadarajah
author_facet	Wan Abdul Rahman, Wan Aizan Hashim, Shahrir Toh, Show Chong Nadarajah, Nadarajah
author_sort	Wan Abdul Rahman, Wan Aizan
title	Enviromental stress crack resistance (ESCR) analysis of blow moulded high density polyethylene (HDPE) containers exposed to surface active agents (PANOX 19)
title_short	Enviromental stress crack resistance (ESCR) analysis of blow moulded high density polyethylene (HDPE) containers exposed to surface active agents (PANOX 19)
title_full	Enviromental stress crack resistance (ESCR) analysis of blow moulded high density polyethylene (HDPE) containers exposed to surface active agents (PANOX 19)
title_fullStr	Enviromental stress crack resistance (ESCR) analysis of blow moulded high density polyethylene (HDPE) containers exposed to surface active agents (PANOX 19)
title_full_unstemmed	Enviromental stress crack resistance (ESCR) analysis of blow moulded high density polyethylene (HDPE) containers exposed to surface active agents (PANOX 19)
title_sort	enviromental stress crack resistance (escr) analysis of blow moulded high density polyethylene (hdpe) containers exposed to surface active agents (panox 19)
publishDate	2002
url	http://eprints.utm.my/id/eprint/4866/1/WanAizan2002_EnviromentalStressCrackResistance.pdf http://eprints.utm.my/id/eprint/4866/
_version_	1643644169584902144
score	13.211869

Enviromental stress crack resistance (ESCR) analysis of blow moulded high density polyethylene (HDPE) containers exposed to surface active agents (PANOX 19)

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