Preparation And Characterization Of Recycled Carbon/Fibercarbon Nanotube Reinforced Epoxy Composites

Preparation And Characterization Of Recycled Carbon/Fibercarbon Nanotube Reinforced Epoxy Composites

The usage of carbon fiber reinforced polymers (CFRP) has been growing at a substantial rate that leads to the increasing amount of waste generated from end-of-life components and manufacturing scrap. Recognizing the hazardous waste that would be harmful to the human health as well as the environment...

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Main Author: Law, Mei Lin
Format: Thesis
Language:English
English
Published: 2016
Subjects:
T Technology (General)
Online Access:http://eprints.utem.edu.my/id/eprint/18574/1/Preparation%20And%20Characterization%20Of%20Recycled%20Carbon%20Fibercarbon%20Nanotube%20Reinforced%20Epoxy%20Composites%2024%20Pages.pdf
http://eprints.utem.edu.my/id/eprint/18574/2/Preparation%20And%20Characterization%20Of%20Recycled%20Carbon%20Fiber%20Carbon%20Nanotube%20Reinforced%20Epoxy%20Composites.pdf
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institution Universiti Teknikal Malaysia Melaka
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topic T Technology (General)
T Technology (General)
spellingShingle T Technology (General)
T Technology (General)
Law, Mei Lin
Preparation And Characterization Of Recycled Carbon/Fibercarbon Nanotube Reinforced Epoxy Composites
description The usage of carbon fiber reinforced polymers (CFRP) has been growing at a substantial rate that leads to the increasing amount of waste generated from end-of-life components and manufacturing scrap. Recognizing the hazardous waste that would be harmful to the human health as well as the environment, this has poses the need to recycle the waste. This report presents the research of compression and wear behaviour of as-received as well as treated rCF and carbon nanotube (CNT) reinforced epoxy composites. The rCF derived from mechanically recycled CFRP composite woven prepreg waste - materials impregnated with epoxy resin is of low value commodity. Therefore, cyclic cryogenic treatment is introduced to produce valuable product of rCF. The objectives of this study were to investigate the effect of cyclic cryogenic treatment on the recycled carbon fiber as well as to study the performance of the as-received rCF reinforced epoxy (EP/rCF-AR), treated rCF reinforced epoxy (EP/rCF-T) and carbon nanotube reinforced treated rCF and epoxy (EP/rCF-T/CNT) composites. The composites’ samples were fabricated using vacuum casting technique. The samples were then subjected to physical, compression and tribological testing. In addition, microscopy examinations were carried out to observe and to analyse the morphology of the worn surfaces. It was found that at 25 cycles of cryogenic treatment, the epoxy resin on the surface of rCF is nearly absent, indicating the effective removal of epoxy resin due to the mismatches in thermal expansion between the interface bonding of rCF/epoxy. Based on the compression and wear test analysis, it was observed that the reinforcement effect of rCF-T has improved the compressive strength (4.09 %) and significantly enhanced the wear resistance (32.2 % at 1.0 m/s and 16 N) of epoxy composites as compared to rCF-AR which may attribute to the improved adhesion between the treated rCFs and epoxy matrix. Moreover, further improvement can be seen in EP/rCF-T/CNT as compared to EP/rCF-T for compressive strength (6.18 %) and wear resistance (16.4 % at 1.0 m/s and 16 N). This is because the addition of nano-size CNT in the composite has enhanced the local stress transferred by the matrix and the good reinforcing capability of CNT promotes better adhesion at the polymer matrix interface. From the study, it was clearly shown that the treated rCF was effective in improving the properties of the epoxy composites. Therefore, the treated rCF are valuable product worth to be considered as reinforcements in the composite materials. In addition, nanofillers serve as matrix reinforcement even at low filler content.
format Thesis
qualification_name Master of Philosophy (M.Phil.)
qualification_level Master's degree
author Law, Mei Lin
author_facet Law, Mei Lin
author_sort Law, Mei Lin
title Preparation And Characterization Of Recycled Carbon/Fibercarbon Nanotube Reinforced Epoxy Composites
title_short Preparation And Characterization Of Recycled Carbon/Fibercarbon Nanotube Reinforced Epoxy Composites
title_full Preparation And Characterization Of Recycled Carbon/Fibercarbon Nanotube Reinforced Epoxy Composites
title_fullStr Preparation And Characterization Of Recycled Carbon/Fibercarbon Nanotube Reinforced Epoxy Composites
title_full_unstemmed Preparation And Characterization Of Recycled Carbon/Fibercarbon Nanotube Reinforced Epoxy Composites
title_sort preparation and characterization of recycled carbon/fibercarbon nanotube reinforced epoxy composites
granting_institution Universiti Teknikal Malaysia Melaka
granting_department Faculty of Manufacturing Engineering
publishDate 2016
url http://eprints.utem.edu.my/id/eprint/18574/1/Preparation%20And%20Characterization%20Of%20Recycled%20Carbon%20Fibercarbon%20Nanotube%20Reinforced%20Epoxy%20Composites%2024%20Pages.pdf
http://eprints.utem.edu.my/id/eprint/18574/2/Preparation%20And%20Characterization%20Of%20Recycled%20Carbon%20Fiber%20Carbon%20Nanotube%20Reinforced%20Epoxy%20Composites.pdf
_version_ 1747833938812862464
spelling my-utem-ep.185742021-10-10T16:39:31Z Preparation And Characterization Of Recycled Carbon/Fibercarbon Nanotube Reinforced Epoxy Composites 2016 Law, Mei Lin T Technology (General) TA Engineering (General). Civil engineering (General) The usage of carbon fiber reinforced polymers (CFRP) has been growing at a substantial rate that leads to the increasing amount of waste generated from end-of-life components and manufacturing scrap. Recognizing the hazardous waste that would be harmful to the human health as well as the environment, this has poses the need to recycle the waste. This report presents the research of compression and wear behaviour of as-received as well as treated rCF and carbon nanotube (CNT) reinforced epoxy composites. The rCF derived from mechanically recycled CFRP composite woven prepreg waste - materials impregnated with epoxy resin is of low value commodity. Therefore, cyclic cryogenic treatment is introduced to produce valuable product of rCF. The objectives of this study were to investigate the effect of cyclic cryogenic treatment on the recycled carbon fiber as well as to study the performance of the as-received rCF reinforced epoxy (EP/rCF-AR), treated rCF reinforced epoxy (EP/rCF-T) and carbon nanotube reinforced treated rCF and epoxy (EP/rCF-T/CNT) composites. The composites’ samples were fabricated using vacuum casting technique. The samples were then subjected to physical, compression and tribological testing. In addition, microscopy examinations were carried out to observe and to analyse the morphology of the worn surfaces. It was found that at 25 cycles of cryogenic treatment, the epoxy resin on the surface of rCF is nearly absent, indicating the effective removal of epoxy resin due to the mismatches in thermal expansion between the interface bonding of rCF/epoxy. Based on the compression and wear test analysis, it was observed that the reinforcement effect of rCF-T has improved the compressive strength (4.09 %) and significantly enhanced the wear resistance (32.2 % at 1.0 m/s and 16 N) of epoxy composites as compared to rCF-AR which may attribute to the improved adhesion between the treated rCFs and epoxy matrix. Moreover, further improvement can be seen in EP/rCF-T/CNT as compared to EP/rCF-T for compressive strength (6.18 %) and wear resistance (16.4 % at 1.0 m/s and 16 N). This is because the addition of nano-size CNT in the composite has enhanced the local stress transferred by the matrix and the good reinforcing capability of CNT promotes better adhesion at the polymer matrix interface. From the study, it was clearly shown that the treated rCF was effective in improving the properties of the epoxy composites. Therefore, the treated rCF are valuable product worth to be considered as reinforcements in the composite materials. In addition, nanofillers serve as matrix reinforcement even at low filler content. UTeM 2016 Thesis http://eprints.utem.edu.my/id/eprint/18574/ http://eprints.utem.edu.my/id/eprint/18574/1/Preparation%20And%20Characterization%20Of%20Recycled%20Carbon%20Fibercarbon%20Nanotube%20Reinforced%20Epoxy%20Composites%2024%20Pages.pdf text en public http://eprints.utem.edu.my/id/eprint/18574/2/Preparation%20And%20Characterization%20Of%20Recycled%20Carbon%20Fiber%20Carbon%20Nanotube%20Reinforced%20Epoxy%20Composites.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=101060 mphil masters Universiti Teknikal Malaysia Melaka Faculty of Manufacturing Engineering 1. Abdul, M. R., 2011. Wear Rate Behaviour of Carbon/Epoxy Composite Materials at Different Working Conditions. The Iraqi Journal for Mechanical and Material Engineering, 11 (3). 2. Akonda, M., Lawrence, C. and Weager, B., 2012. Recycled Carbon Fibre Reinforced Polypropylene Thermoplastic Composites. 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