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Recycling high impact polystyrene: Material properties and reprocessing in a circular economy business model
Progress in Rubber, Plastics and Recycling Technology, Start page: 147776062311686
Swansea University Authors:
Fawzi Belblidia , mohamed Gabr, John Pittman, Abishera Rajkumar
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DOI (Published version): 10.1177/14777606231168653
Abstract
An account is presented of successfully implemented Extended Producer Responsibility (EPR) with recycling to high value products, to help overcome barriers and generate confidence in moving towards Circular Economy (CE) business models. A template for organisations proposing to recycle a thermoplast...
Published in: | Progress in Rubber, Plastics and Recycling Technology |
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ISSN: | 1477-7606 1478-2413 |
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URI: | https://cronfa.swan.ac.uk/Record/cronfa63437 |
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A template for organisations proposing to recycle a thermoplastic is provided by describing appropriate tests and considerations in implementing the recovery and re-use of high impact polystyrene (HIPS) based on a practical, industry case. Simulating the repeated 100% closed loop reprocessing of production scrap, original HIPS has been injection molded to produce tensile and impact test pieces, reground and reprocessed eight times. Assessing the present results together with literature, repeated recycling of production scrap is possible without the need for a remedial compounding step, or changes to processing parameters. Integral to the EPR model is recovery of plastic from returned end-of-life (EoL) products, and in relation to the in-use environment, studies of the effects of UV exposure on virgin material show that significant property degradation can occur. However, with indoor use, as in the present case, this is not seen. Within the CE business model it is desirable to use blends of recovered HIPS originating from different original resin manufacturers. Feeding dry blend regrind directly to the molding machine proved satisfactory, avoiding the need for a compounding/pelletizing step. 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v2 63437 2023-05-11 Recycling high impact polystyrene: Material properties and reprocessing in a circular economy business model 7e0feb96ca2d685180b495e8983f3940 0000-0002-8170-0468 Fawzi Belblidia Fawzi Belblidia true false a5d1e73c0040d86e93c84cc56f0a4ada mohamed Gabr mohamed Gabr true false 9e89bf430b648088d29a705d182849b4 John Pittman John Pittman true false a859f4f6c61482ae92ef089b0821f6ac Abishera Rajkumar Abishera Rajkumar true false 2023-05-11 AERO An account is presented of successfully implemented Extended Producer Responsibility (EPR) with recycling to high value products, to help overcome barriers and generate confidence in moving towards Circular Economy (CE) business models. A template for organisations proposing to recycle a thermoplastic is provided by describing appropriate tests and considerations in implementing the recovery and re-use of high impact polystyrene (HIPS) based on a practical, industry case. Simulating the repeated 100% closed loop reprocessing of production scrap, original HIPS has been injection molded to produce tensile and impact test pieces, reground and reprocessed eight times. Assessing the present results together with literature, repeated recycling of production scrap is possible without the need for a remedial compounding step, or changes to processing parameters. Integral to the EPR model is recovery of plastic from returned end-of-life (EoL) products, and in relation to the in-use environment, studies of the effects of UV exposure on virgin material show that significant property degradation can occur. However, with indoor use, as in the present case, this is not seen. Within the CE business model it is desirable to use blends of recovered HIPS originating from different original resin manufacturers. Feeding dry blend regrind directly to the molding machine proved satisfactory, avoiding the need for a compounding/pelletizing step. As an outcome of this study, products are being successfully manufactured from 100% HIPS recovered from EoL products in an environmentally and economically positive CE plan. Journal Article Progress in Rubber, Plastics and Recycling Technology 147776062311686 SAGE Publications 1477-7606 1478-2413 High impact polystyrene, recycling, circular economy, extended producer responsibility, end-of-life product recall, degradation by UV exposure, material reprocessing, thermo-mechanical degradation 0 0 0 0001-01-01 10.1177/14777606231168653 http://dx.doi.org/10.1177/14777606231168653 COLLEGE NANME Aerospace Engineering COLLEGE CODE AERO Swansea University SU College/Department paid the OA fee This work was supported by the European Regional Development Fund (ERDF). 2023-06-08T14:13:43.9635488 2023-05-11T13:45:00.7680268 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering Fawzi Belblidia 0000-0002-8170-0468 1 mohamed Gabr 2 John Pittman 3 Abishera Rajkumar 4 63437__27442__96a214f78140456cb58027d3ce8f5165.pdf 63437.pdf 2023-05-11T13:49:46.8600412 Output 1227641 application/pdf Version of Record true This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage). true eng https://creativecommons.org/licenses/by-nc/4.0/ |
title |
Recycling high impact polystyrene: Material properties and reprocessing in a circular economy business model |
spellingShingle |
Recycling high impact polystyrene: Material properties and reprocessing in a circular economy business model Fawzi Belblidia mohamed Gabr John Pittman Abishera Rajkumar |
title_short |
Recycling high impact polystyrene: Material properties and reprocessing in a circular economy business model |
title_full |
Recycling high impact polystyrene: Material properties and reprocessing in a circular economy business model |
title_fullStr |
Recycling high impact polystyrene: Material properties and reprocessing in a circular economy business model |
title_full_unstemmed |
Recycling high impact polystyrene: Material properties and reprocessing in a circular economy business model |
title_sort |
Recycling high impact polystyrene: Material properties and reprocessing in a circular economy business model |
author_id_str_mv |
7e0feb96ca2d685180b495e8983f3940 a5d1e73c0040d86e93c84cc56f0a4ada 9e89bf430b648088d29a705d182849b4 a859f4f6c61482ae92ef089b0821f6ac |
author_id_fullname_str_mv |
7e0feb96ca2d685180b495e8983f3940_***_Fawzi Belblidia a5d1e73c0040d86e93c84cc56f0a4ada_***_mohamed Gabr 9e89bf430b648088d29a705d182849b4_***_John Pittman a859f4f6c61482ae92ef089b0821f6ac_***_Abishera Rajkumar |
author |
Fawzi Belblidia mohamed Gabr John Pittman Abishera Rajkumar |
author2 |
Fawzi Belblidia mohamed Gabr John Pittman Abishera Rajkumar |
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Progress in Rubber, Plastics and Recycling Technology |
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147776062311686 |
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Swansea University |
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1477-7606 1478-2413 |
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10.1177/14777606231168653 |
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SAGE Publications |
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Faculty of Science and Engineering |
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url |
http://dx.doi.org/10.1177/14777606231168653 |
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description |
An account is presented of successfully implemented Extended Producer Responsibility (EPR) with recycling to high value products, to help overcome barriers and generate confidence in moving towards Circular Economy (CE) business models. A template for organisations proposing to recycle a thermoplastic is provided by describing appropriate tests and considerations in implementing the recovery and re-use of high impact polystyrene (HIPS) based on a practical, industry case. Simulating the repeated 100% closed loop reprocessing of production scrap, original HIPS has been injection molded to produce tensile and impact test pieces, reground and reprocessed eight times. Assessing the present results together with literature, repeated recycling of production scrap is possible without the need for a remedial compounding step, or changes to processing parameters. Integral to the EPR model is recovery of plastic from returned end-of-life (EoL) products, and in relation to the in-use environment, studies of the effects of UV exposure on virgin material show that significant property degradation can occur. However, with indoor use, as in the present case, this is not seen. Within the CE business model it is desirable to use blends of recovered HIPS originating from different original resin manufacturers. Feeding dry blend regrind directly to the molding machine proved satisfactory, avoiding the need for a compounding/pelletizing step. As an outcome of this study, products are being successfully manufactured from 100% HIPS recovered from EoL products in an environmentally and economically positive CE plan. |
published_date |
0001-01-01T14:13:42Z |
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11.021648 |