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A Novel Hybrid Foaming Method for Low-Pressure Microcellular Foam Production of Unfilled and Talc-Filled Copolymer Polypropylenes

Gethin Llewellyn, Andrew Rees, Christian Griffiths, Martin Jacobi

Polymers, Volume: 11, Issue: 11, Start page: 1896

Swansea University Authors: Gethin Llewellyn, Andrew Rees, Christian Griffiths

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DOI (Published version): 10.3390/polym11111896

Abstract

Unfilled and talc-filled Copolymer Polypropylene (PP) samples were produced through low-pressure foam-injection molding (FIM). The foaming stage of the process has been facilitated through a chemical blowing agent (C6H7NaO7 and CaCO3 mixture), a physical blowing agent (supercritical N2) and a novel...

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Published in: Polymers
ISSN: 2073-4360
Published: MDPI AG 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa52829
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first_indexed 2019-11-22T13:15:51Z
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spelling 2021-08-18T14:34:58.6467698 v2 52829 2019-11-22 A Novel Hybrid Foaming Method for Low-Pressure Microcellular Foam Production of Unfilled and Talc-Filled Copolymer Polypropylenes 7454b3dde334f8d8876851bc894bea29 Gethin Llewellyn Gethin Llewellyn true false e43e88c74976e714e1d669a898f8470d Andrew Rees Andrew Rees true false 84c202c256a2950fbc52314df6ec4914 Christian Griffiths Christian Griffiths true false 2019-11-22 FGSEN Unfilled and talc-filled Copolymer Polypropylene (PP) samples were produced through low-pressure foam-injection molding (FIM). The foaming stage of the process has been facilitated through a chemical blowing agent (C6H7NaO7 and CaCO3 mixture), a physical blowing agent (supercritical N2) and a novel hybrid foaming (combination of said chemical and physical foaming agents). Three weight-saving levels were produced with the varying foaming methods and compared to conventional injection molding. The unfilled PP foams produced through chemical blowing agent exhibited the strongest mechanical characteristics due to larger skin wall thicknesses, while the weakest were that of the talc-filled PP through the hybrid foaming technique. However, the hybrid foaming produced superior microcellular foams for both PPs due to calcium carbonate (CaCO3) enhancing the nucleation phase. Journal Article Polymers 11 11 1896 MDPI AG 2073-4360 polypropylene; foam-injection molding; TecoCell®; MuCell®; talc; calcium carbonate 17 11 2019 2019-11-17 10.3390/polym11111896 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2021-08-18T14:34:58.6467698 2019-11-22T10:14:43.6486032 College of Engineering Engineering Gethin Llewellyn 1 Andrew Rees 2 Christian Griffiths 3 Martin Jacobi 4 52829__15940__38228afca57047b9a89056b798c6ceb8.pdf llewellyn2019.pdf 2019-11-22T10:16:33.2563677 Output 5295101 application/pdf Version of Record true 2019-11-22T00:00:00.0000000 This is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license true eng https://creativecommons.org/licenses/by/4.0/
title A Novel Hybrid Foaming Method for Low-Pressure Microcellular Foam Production of Unfilled and Talc-Filled Copolymer Polypropylenes
spellingShingle A Novel Hybrid Foaming Method for Low-Pressure Microcellular Foam Production of Unfilled and Talc-Filled Copolymer Polypropylenes
Gethin Llewellyn
Andrew Rees
Christian Griffiths
title_short A Novel Hybrid Foaming Method for Low-Pressure Microcellular Foam Production of Unfilled and Talc-Filled Copolymer Polypropylenes
title_full A Novel Hybrid Foaming Method for Low-Pressure Microcellular Foam Production of Unfilled and Talc-Filled Copolymer Polypropylenes
title_fullStr A Novel Hybrid Foaming Method for Low-Pressure Microcellular Foam Production of Unfilled and Talc-Filled Copolymer Polypropylenes
title_full_unstemmed A Novel Hybrid Foaming Method for Low-Pressure Microcellular Foam Production of Unfilled and Talc-Filled Copolymer Polypropylenes
title_sort A Novel Hybrid Foaming Method for Low-Pressure Microcellular Foam Production of Unfilled and Talc-Filled Copolymer Polypropylenes
author_id_str_mv 7454b3dde334f8d8876851bc894bea29
e43e88c74976e714e1d669a898f8470d
84c202c256a2950fbc52314df6ec4914
author_id_fullname_str_mv 7454b3dde334f8d8876851bc894bea29_***_Gethin Llewellyn
e43e88c74976e714e1d669a898f8470d_***_Andrew Rees
84c202c256a2950fbc52314df6ec4914_***_Christian Griffiths
author Gethin Llewellyn
Andrew Rees
Christian Griffiths
author2 Gethin Llewellyn
Andrew Rees
Christian Griffiths
Martin Jacobi
format Journal article
container_title Polymers
container_volume 11
container_issue 11
container_start_page 1896
publishDate 2019
institution Swansea University
issn 2073-4360
doi_str_mv 10.3390/polym11111896
publisher MDPI AG
college_str College of Engineering
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hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 1
active_str 0
description Unfilled and talc-filled Copolymer Polypropylene (PP) samples were produced through low-pressure foam-injection molding (FIM). The foaming stage of the process has been facilitated through a chemical blowing agent (C6H7NaO7 and CaCO3 mixture), a physical blowing agent (supercritical N2) and a novel hybrid foaming (combination of said chemical and physical foaming agents). Three weight-saving levels were produced with the varying foaming methods and compared to conventional injection molding. The unfilled PP foams produced through chemical blowing agent exhibited the strongest mechanical characteristics due to larger skin wall thicknesses, while the weakest were that of the talc-filled PP through the hybrid foaming technique. However, the hybrid foaming produced superior microcellular foams for both PPs due to calcium carbonate (CaCO3) enhancing the nucleation phase.
published_date 2019-11-17T04:06:53Z
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score 10.877554