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Durability of Green Polyurethane Adhesive Bonded Aluminum Alloy in Dry and Hydrothermal Ageing Conditions

Polyurethane (PU) adhesives were prepared from the reaction of polycaprolactone (PCL) polyols based on palm kernel oil based polyesteramide (PPKO) with an aromatic and cycloaliphatic diisocyanate. Four different formulations of PU adhesives were prepared by varying the NCO : OH ratio, in order to in...

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Main Authors: Norazwani, Muhammad Zain,, Sahrim, Hj Ahmad,, Ernie Suzana, Ali,
Format: Article
Language:English
Published: Wiley-Blackwell 2015
Subjects:
Thermoplastic Polyurethane
Fatigue Behavior
Joints
Elastomer
Moisture
Failure
Online Access:http://ddms.usim.edu.my/handle/123456789/8108
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spelling my.usim-81082017-02-20T04:28:44Z Durability of Green Polyurethane Adhesive Bonded Aluminum Alloy in Dry and Hydrothermal Ageing Conditions Norazwani, Muhammad Zain, Sahrim, Hj Ahmad, Ernie Suzana, Ali, Thermoplastic Polyurethane Fatigue Behavior Joints Elastomer Moisture Failure Polyurethane (PU) adhesives were prepared from the reaction of polycaprolactone (PCL) polyols based on palm kernel oil based polyesteramide (PPKO) with an aromatic and cycloaliphatic diisocyanate. Four different formulations of PU adhesives were prepared by varying the NCO : OH ratio, in order to investigate the effects of NCO : OH ratios on adhesion strength. The adhesive strength of metal-metal bonding both in dry and hydrothermal ageing-was determined by single lap shear joint testing. The resistance to hydrolysis of the PU adhesives was determined by performing water absorption tests. The water absorption test samples suggested that the durability of the adhesives correlated to lower water absorption due to higher NCO content. The correlation between the crosslinking of the PU network and adhesive strength was also studied by performing swelling tests. The higher NCO content showed that, the higher crosslink density of PUs led to higher cohesion and adhesion strengths. PU1.7 showed optimal properties in terms of durability and resistance to hydrolysis, whereas PU2.0 revealed deterioration in durability and resistance to hydrolysis due to the presence of greater micro-voids content in the PU2.0 matrix. (C) 2014 Wiley Periodicals, Inc. 2015-05-18T03:55:55Z 2015-05-18T03:55:55Z 2014-01-01 Article 0021-8995 1097-4628 http://ddms.usim.edu.my/handle/123456789/8108 en Wiley-Blackwell
institution Universiti Sains Islam Malaysia
building USIM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universit Sains Islam i Malaysia
content_source USIM Institutional Repository
url_provider http://ddms.usim.edu.my/
language English
topic Thermoplastic Polyurethane
Fatigue Behavior
Joints
Elastomer
Moisture
Failure
spellingShingle Thermoplastic Polyurethane
Fatigue Behavior
Joints
Elastomer
Moisture
Failure
Norazwani, Muhammad Zain,
Sahrim, Hj Ahmad,
Ernie Suzana, Ali,
Durability of Green Polyurethane Adhesive Bonded Aluminum Alloy in Dry and Hydrothermal Ageing Conditions
description Polyurethane (PU) adhesives were prepared from the reaction of polycaprolactone (PCL) polyols based on palm kernel oil based polyesteramide (PPKO) with an aromatic and cycloaliphatic diisocyanate. Four different formulations of PU adhesives were prepared by varying the NCO : OH ratio, in order to investigate the effects of NCO : OH ratios on adhesion strength. The adhesive strength of metal-metal bonding both in dry and hydrothermal ageing-was determined by single lap shear joint testing. The resistance to hydrolysis of the PU adhesives was determined by performing water absorption tests. The water absorption test samples suggested that the durability of the adhesives correlated to lower water absorption due to higher NCO content. The correlation between the crosslinking of the PU network and adhesive strength was also studied by performing swelling tests. The higher NCO content showed that, the higher crosslink density of PUs led to higher cohesion and adhesion strengths. PU1.7 showed optimal properties in terms of durability and resistance to hydrolysis, whereas PU2.0 revealed deterioration in durability and resistance to hydrolysis due to the presence of greater micro-voids content in the PU2.0 matrix. (C) 2014 Wiley Periodicals, Inc.
format Article
author Norazwani, Muhammad Zain,
Sahrim, Hj Ahmad,
Ernie Suzana, Ali,
author_facet Norazwani, Muhammad Zain,
Sahrim, Hj Ahmad,
Ernie Suzana, Ali,
author_sort Norazwani, Muhammad Zain,
title Durability of Green Polyurethane Adhesive Bonded Aluminum Alloy in Dry and Hydrothermal Ageing Conditions
title_short Durability of Green Polyurethane Adhesive Bonded Aluminum Alloy in Dry and Hydrothermal Ageing Conditions
title_full Durability of Green Polyurethane Adhesive Bonded Aluminum Alloy in Dry and Hydrothermal Ageing Conditions
title_fullStr Durability of Green Polyurethane Adhesive Bonded Aluminum Alloy in Dry and Hydrothermal Ageing Conditions
title_full_unstemmed Durability of Green Polyurethane Adhesive Bonded Aluminum Alloy in Dry and Hydrothermal Ageing Conditions
title_sort durability of green polyurethane adhesive bonded aluminum alloy in dry and hydrothermal ageing conditions
publisher Wiley-Blackwell
publishDate 2015
url http://ddms.usim.edu.my/handle/123456789/8108
_version_ 1645152341967503360
score 13.222552

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