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A Design of Experiment Approach for Surface Roughness Comparisons of Foam Injection-Moulding Methods
The pursuit of polymer parts produced through foam injection moulding (FIM) that have a comparable surface roughness to conventionally processed components are of major relevance to expand the application of FIM. Within this study, 22% talc-filled copolymer polypropylene (PP) parts were produced thr...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7287706/ https://www.ncbi.nlm.nih.gov/pubmed/32443909 http://dx.doi.org/10.3390/ma13102358 |
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author | Llewelyn, Gethin Rees, Andrew Griffiths, Christian Jacobi, Martin |
author_facet | Llewelyn, Gethin Rees, Andrew Griffiths, Christian Jacobi, Martin |
author_sort | Llewelyn, Gethin |
collection | PubMed |
description | The pursuit of polymer parts produced through foam injection moulding (FIM) that have a comparable surface roughness to conventionally processed components are of major relevance to expand the application of FIM. Within this study, 22% talc-filled copolymer polypropylene (PP) parts were produced through FIM using both a physical and chemical blowing agent. A design of experiments (DoE) was performed whereby the processing parameters of mould temperatures, injection speeds, back-pressure, melt temperature and holding time were varied to determine their effect on surface roughness, Young’s modulus and tensile strength. The results showed that mechanical performance can be improved when processing with higher mould temperatures and longer holding times. Also, it was observed that when utilising chemical foaming agents (CBA) at low-pressure, surface roughness comparable to that obtained from conventionally processed components can be achieved. This research demonstrates the potential of FIM to expand to applications whereby weight saving can be achieved without introducing surface defects, which has previously been witnessed within FIM. |
format | Online Article Text |
id | pubmed-7287706 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-72877062020-06-15 A Design of Experiment Approach for Surface Roughness Comparisons of Foam Injection-Moulding Methods Llewelyn, Gethin Rees, Andrew Griffiths, Christian Jacobi, Martin Materials (Basel) Article The pursuit of polymer parts produced through foam injection moulding (FIM) that have a comparable surface roughness to conventionally processed components are of major relevance to expand the application of FIM. Within this study, 22% talc-filled copolymer polypropylene (PP) parts were produced through FIM using both a physical and chemical blowing agent. A design of experiments (DoE) was performed whereby the processing parameters of mould temperatures, injection speeds, back-pressure, melt temperature and holding time were varied to determine their effect on surface roughness, Young’s modulus and tensile strength. The results showed that mechanical performance can be improved when processing with higher mould temperatures and longer holding times. Also, it was observed that when utilising chemical foaming agents (CBA) at low-pressure, surface roughness comparable to that obtained from conventionally processed components can be achieved. This research demonstrates the potential of FIM to expand to applications whereby weight saving can be achieved without introducing surface defects, which has previously been witnessed within FIM. MDPI 2020-05-20 /pmc/articles/PMC7287706/ /pubmed/32443909 http://dx.doi.org/10.3390/ma13102358 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Llewelyn, Gethin Rees, Andrew Griffiths, Christian Jacobi, Martin A Design of Experiment Approach for Surface Roughness Comparisons of Foam Injection-Moulding Methods |
title | A Design of Experiment Approach for Surface Roughness Comparisons of Foam Injection-Moulding Methods |
title_full | A Design of Experiment Approach for Surface Roughness Comparisons of Foam Injection-Moulding Methods |
title_fullStr | A Design of Experiment Approach for Surface Roughness Comparisons of Foam Injection-Moulding Methods |
title_full_unstemmed | A Design of Experiment Approach for Surface Roughness Comparisons of Foam Injection-Moulding Methods |
title_short | A Design of Experiment Approach for Surface Roughness Comparisons of Foam Injection-Moulding Methods |
title_sort | design of experiment approach for surface roughness comparisons of foam injection-moulding methods |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7287706/ https://www.ncbi.nlm.nih.gov/pubmed/32443909 http://dx.doi.org/10.3390/ma13102358 |
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