Mechanism of Water Absorption Behaviour in Groundnut Shell Powder Filled Waste HDPE Composites

Communication in Physical Sciences

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Field Value
 
Title Mechanism of Water Absorption Behaviour in Groundnut Shell Powder Filled Waste HDPE Composites
 
Creator Joseph Jacob
Paul Andrew P. Mamza
 
Subject Groundnut shell powder
mechanical properties
mechanism
water absorption
waste high density polyethylene
 
Description Communication in Physical Sciences, 2020, 6(1): 793-802
Authors: Joseph Jacob and Paul Andrew P. Mamza
Received 22 November 2020/Accepted 02 December 2020
The mechanism of water absorption and its effect on mechanical properties of groundnut shell powder (GSP) reinforced waste high density polyethylene (wHDPE) was studied at different temperatures. The composite samples were developed via melt mixing and compression moulding techniques respectively. The percentage weight fraction of reinforcement was varied (0, 5, 10, 15, 20 and 25 %). The initial rate of water absorption and the maximum were observed to increase for all GSP filled wHDPE composites samples as the weight fraction of reinforcement increases. The maximum moisture uptake at room temperature was 4.77 % after 720 hours of exposure compared to 6.74 % moisture uptake at elevated temperature showing a 6.73 % increase for 25 % GSP-wHDPE composites. This indicates that sorption at room temperature takes longer time to reach equilibrium than sorption at elevated temperatures. The effects of moisture absorption and temperature on several performance parameters such as tensile strength, flexural strength, hardness value and impact strength revealed a decrease in these properties after 720 hours of immersion in distilled water at 27This indicates that long term exposure of GSP-wHDPE composites in water affects the interfacial adhesion between the polymer matrix and the fibre, creates de-bonding, leading to decrease in mechanical properties
 
Publisher University Of Nigeria Nsukka
 
Date 2020-12-05
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://journalcps.com/index.php/volumes/article/view/162
 
Source Communication in Physical Sciences; Vol. 6 No. 1 (2020): VOLUME 6(ISSUE 1)
2705-2397
2645-2448
 
Language eng
 
Relation https://journalcps.com/index.php/volumes/article/view/162/143
 
Rights Copyright (c) 2010 The Journal and the author
https://creativecommons.org/licenses/by-nc/4.0
 

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