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Mechanical properties of recycled polypropylene (rPP) processed by injection molding method

The injection moulding process is one of the most important processes in the plastic processing industry. The process mostly used thermoplastic materials that are recyclable, non-biodegradable and the decomposition process consume a significant length of time. This results the serious pollution prob...

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Main Author: Malek Riduan, Mohd Hafiedzzul
Format: Thesis
Language:English
English
Published: 2014
Subjects:
TP Chemical technology
Online Access:http://eprints.utem.edu.my/id/eprint/14715/1/Mechanical%20Properties%20Of%20Recycled%20Polypropylene%20%28rPP%29%20Processed%20By%20Injection%20Molding%20Method%2024pages.pdf
http://eprints.utem.edu.my/id/eprint/14715/2/Mechanical%20properties%20of%20recycled%20polypropylene%20%28rPP%29%20processed%20by%20injection%20molding%20method.pdf
http://eprints.utem.edu.my/id/eprint/14715/
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spelling my.utem.eprints.147152022-11-11T11:26:24Z http://eprints.utem.edu.my/id/eprint/14715/ Mechanical properties of recycled polypropylene (rPP) processed by injection molding method Malek Riduan, Mohd Hafiedzzul TP Chemical technology The injection moulding process is one of the most important processes in the plastic processing industry. The process mostly used thermoplastic materials that are recyclable, non-biodegradable and the decomposition process consume a significant length of time. This results the serious pollution problem, therefore studies on the recycling of thermoplastic and the usability of the recycled materials have gained significance. The objective of this research is to investigate the effect of melting temperature, packing pressure, and cooling times on tensile strength elastic modulus and Izod impact test properties of recycle PP (rPP). Samples consist of 100% virgin polypropylene (vPP) and l 00% recycled polypropylenes (rPP) which are processed by using Nissei ( 11 Okn) Injection Molding Machine. Cavity of the mold is a dumbbell shape which is referring to ASTM D638 and ASTM 0256. This research used three controllable parameters are melting temperature, packing pressure, and cooling times. While the other parameters remained constant. Taguchi's L9 orthogonal array design was employed in design of experiment and each one at three levels, tested to determine the optimal combination effect of factors and levels in the injection moulding process. In analyse the results, Taguchi method introduced the use of the signal to-noise (SIN) ratio to determine the quality of the characteristics applied. Mechanical properties such as maximum tensile strength, elastic modulus and Izod impact strength of the specimens were measured and analysed. The results are expected to compare the mechanical properties of vPP and rPP. The experimental analysis revealed that the melt temperature has high influence of mechanical properties of rPP due to high P-value in ANOV A result for maximum tensile strength, Izod impact strength and elastic modulus. The study emphasis that the improvement of mechanical properties of recycle polymers were able to achieved by optimizing the correlated processing parameters during injection molding process without any influences of additives. 2014 Thesis NonPeerReviewed text en http://eprints.utem.edu.my/id/eprint/14715/1/Mechanical%20Properties%20Of%20Recycled%20Polypropylene%20%28rPP%29%20Processed%20By%20Injection%20Molding%20Method%2024pages.pdf text en http://eprints.utem.edu.my/id/eprint/14715/2/Mechanical%20properties%20of%20recycled%20polypropylene%20%28rPP%29%20processed%20by%20injection%20molding%20method.pdf Malek Riduan, Mohd Hafiedzzul (2014) Mechanical properties of recycled polypropylene (rPP) processed by injection molding method. Masters thesis, Universiti Teknikal Malaysia Melaka. https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=92156
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
English
topic TP Chemical technology
spellingShingle TP Chemical technology
Malek Riduan, Mohd Hafiedzzul
Mechanical properties of recycled polypropylene (rPP) processed by injection molding method
description The injection moulding process is one of the most important processes in the plastic processing industry. The process mostly used thermoplastic materials that are recyclable, non-biodegradable and the decomposition process consume a significant length of time. This results the serious pollution problem, therefore studies on the recycling of thermoplastic and the usability of the recycled materials have gained significance. The objective of this research is to investigate the effect of melting temperature, packing pressure, and cooling times on tensile strength elastic modulus and Izod impact test properties of recycle PP (rPP). Samples consist of 100% virgin polypropylene (vPP) and l 00% recycled polypropylenes (rPP) which are processed by using Nissei ( 11 Okn) Injection Molding Machine. Cavity of the mold is a dumbbell shape which is referring to ASTM D638 and ASTM 0256. This research used three controllable parameters are melting temperature, packing pressure, and cooling times. While the other parameters remained constant. Taguchi's L9 orthogonal array design was employed in design of experiment and each one at three levels, tested to determine the optimal combination effect of factors and levels in the injection moulding process. In analyse the results, Taguchi method introduced the use of the signal to-noise (SIN) ratio to determine the quality of the characteristics applied. Mechanical properties such as maximum tensile strength, elastic modulus and Izod impact strength of the specimens were measured and analysed. The results are expected to compare the mechanical properties of vPP and rPP. The experimental analysis revealed that the melt temperature has high influence of mechanical properties of rPP due to high P-value in ANOV A result for maximum tensile strength, Izod impact strength and elastic modulus. The study emphasis that the improvement of mechanical properties of recycle polymers were able to achieved by optimizing the correlated processing parameters during injection molding process without any influences of additives.
format Thesis
author Malek Riduan, Mohd Hafiedzzul
author_facet Malek Riduan, Mohd Hafiedzzul
author_sort Malek Riduan, Mohd Hafiedzzul
title Mechanical properties of recycled polypropylene (rPP) processed by injection molding method
title_short Mechanical properties of recycled polypropylene (rPP) processed by injection molding method
title_full Mechanical properties of recycled polypropylene (rPP) processed by injection molding method
title_fullStr Mechanical properties of recycled polypropylene (rPP) processed by injection molding method
title_full_unstemmed Mechanical properties of recycled polypropylene (rPP) processed by injection molding method
title_sort mechanical properties of recycled polypropylene (rpp) processed by injection molding method
publishDate 2014
url http://eprints.utem.edu.my/id/eprint/14715/1/Mechanical%20Properties%20Of%20Recycled%20Polypropylene%20%28rPP%29%20Processed%20By%20Injection%20Molding%20Method%2024pages.pdf
http://eprints.utem.edu.my/id/eprint/14715/2/Mechanical%20properties%20of%20recycled%20polypropylene%20%28rPP%29%20processed%20by%20injection%20molding%20method.pdf
http://eprints.utem.edu.my/id/eprint/14715/
https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=92156
_version_ 1751540435772243968
score 13.211869

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