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Impact of Bimodal Particle Size Distribution Ratio of Functional Calcium Carbonate Filler on Thermal and Flowability Properties of Polyamide 12

Fabio Ippolito, Gunter Hübner, Tim Claypole Orcid Logo, Patrick Gane

Applied Sciences, Volume: 11, Issue: 2, Start page: 641

Swansea University Author: Tim Claypole Orcid Logo

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DOI (Published version): 10.3390/app11020641

Abstract

In previous investigations, it was shown that the melting, as well as crystallization behavior of polyamide 12, could be manipulated by adjusting the particle size distribution of calcium carbonate as a functional filler. It was demonstrated that the melt properties of this compound show a significa...

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Published in: Applied Sciences
ISSN: 2076-3417
Published: MDPI AG 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa56083
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spelling 2021-02-22T16:16:38.6612423 v2 56083 2021-01-20 Impact of Bimodal Particle Size Distribution Ratio of Functional Calcium Carbonate Filler on Thermal and Flowability Properties of Polyamide 12 7735385522f1e68a8775b4f709e91d55 0000-0003-1393-9634 Tim Claypole Tim Claypole true false 2021-01-20 MECH In previous investigations, it was shown that the melting, as well as crystallization behavior of polyamide 12, could be manipulated by adjusting the particle size distribution of calcium carbonate as a functional filler. It was demonstrated that the melt properties of this compound show a significant dependency on the filler volume-based particle size. As finer and narrower the calcium carbonate particles in the polymer matrix become, the less influence the filler has on the melting properties, influencing the melt flow less significantly than the same surface amount of broad size distribution coarse calcium carbonate filler particles. However, due to increased nucleation, the crystallization behavior on cooling showed a markedly more rapid onset in the case of fine sub-micrometer filler particle size. To control further and optimize the thermal response properties of a filling compound for improved properties in additive manufacturing processing through selective laser sintering, the possibility to combine precisely defined particle size distributions has been studied, thereby combining the benefits of each particle size range within the chosen material size distribution contributes to the matrix. The melt flow at 190 °C, the melting speed, melting and crystallization point as well as crystallization time at 170 °C were analyzed. The thermal and flow properties of a polyamide 12 matrix can potentially be optimized with a combination of a precise amount of coarse and fine calcium carbonate filler. The improvements were exemplified using a twin-screw extruder for compounding, indicating the potential for optimizing functionally filled polymer in additive manufacturing. Journal Article Applied Sciences 11 2 641 MDPI AG 2076-3417 polymer composites; additive manufacturing; functional calcium carbonate 11 1 2021 2021-01-11 10.3390/app11020641 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2021-02-22T16:16:38.6612423 2021-01-20T09:28:02.9364329 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Fabio Ippolito 1 Gunter Hübner 2 Tim Claypole 0000-0003-1393-9634 3 Patrick Gane 4 56083__19130__32e87953b4e2420782f7e61f0bc1628a.pdf 56083.pdf 2021-01-20T09:29:34.1985572 Output 3440417 application/pdf Version of Record true © 2021 by the authors. This is an open access article distributed under the Creative Commons Attribution License true eng http://creativecommons.org/licenses/by/4.0/
title Impact of Bimodal Particle Size Distribution Ratio of Functional Calcium Carbonate Filler on Thermal and Flowability Properties of Polyamide 12
spellingShingle Impact of Bimodal Particle Size Distribution Ratio of Functional Calcium Carbonate Filler on Thermal and Flowability Properties of Polyamide 12
Tim Claypole
title_short Impact of Bimodal Particle Size Distribution Ratio of Functional Calcium Carbonate Filler on Thermal and Flowability Properties of Polyamide 12
title_full Impact of Bimodal Particle Size Distribution Ratio of Functional Calcium Carbonate Filler on Thermal and Flowability Properties of Polyamide 12
title_fullStr Impact of Bimodal Particle Size Distribution Ratio of Functional Calcium Carbonate Filler on Thermal and Flowability Properties of Polyamide 12
title_full_unstemmed Impact of Bimodal Particle Size Distribution Ratio of Functional Calcium Carbonate Filler on Thermal and Flowability Properties of Polyamide 12
title_sort Impact of Bimodal Particle Size Distribution Ratio of Functional Calcium Carbonate Filler on Thermal and Flowability Properties of Polyamide 12
author_id_str_mv 7735385522f1e68a8775b4f709e91d55
author_id_fullname_str_mv 7735385522f1e68a8775b4f709e91d55_***_Tim Claypole
author Tim Claypole
author2 Fabio Ippolito
Gunter Hübner
Tim Claypole
Patrick Gane
format Journal article
container_title Applied Sciences
container_volume 11
container_issue 2
container_start_page 641
publishDate 2021
institution Swansea University
issn 2076-3417
doi_str_mv 10.3390/app11020641
publisher MDPI AG
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 1
active_str 0
description In previous investigations, it was shown that the melting, as well as crystallization behavior of polyamide 12, could be manipulated by adjusting the particle size distribution of calcium carbonate as a functional filler. It was demonstrated that the melt properties of this compound show a significant dependency on the filler volume-based particle size. As finer and narrower the calcium carbonate particles in the polymer matrix become, the less influence the filler has on the melting properties, influencing the melt flow less significantly than the same surface amount of broad size distribution coarse calcium carbonate filler particles. However, due to increased nucleation, the crystallization behavior on cooling showed a markedly more rapid onset in the case of fine sub-micrometer filler particle size. To control further and optimize the thermal response properties of a filling compound for improved properties in additive manufacturing processing through selective laser sintering, the possibility to combine precisely defined particle size distributions has been studied, thereby combining the benefits of each particle size range within the chosen material size distribution contributes to the matrix. The melt flow at 190 °C, the melting speed, melting and crystallization point as well as crystallization time at 170 °C were analyzed. The thermal and flow properties of a polyamide 12 matrix can potentially be optimized with a combination of a precise amount of coarse and fine calcium carbonate filler. The improvements were exemplified using a twin-screw extruder for compounding, indicating the potential for optimizing functionally filled polymer in additive manufacturing.
published_date 2021-01-11T04:10:46Z
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score 11.01753

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