Cargando…

Reprocessed Materials Used in Rotationally Moulded Sandwich Structures for Enhancing Environmental Sustainability: Low-Velocity Impact and Flexure-after-Impact Responses

In the rotational moulding industry, non-used, scrap, and waste purge materials have tremendous potential to be reprocessed and applied in skin-foam-skin sandwich structures to replace and reduce the use of virgin polymers. This approach not only encourages the re-use of these waste materials but al...

Descripción completa

Detalles Bibliográficos
Autores principales: Saifullah, Abu, Radhakrishnan, Pappu, Wang, Lei, Saeed, Burhan, Sarker, Forkan, Dhakal, Hom N.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9501101/
https://www.ncbi.nlm.nih.gov/pubmed/36143802
http://dx.doi.org/10.3390/ma15186491
_version_ 1784795390885756928
author Saifullah, Abu
Radhakrishnan, Pappu
Wang, Lei
Saeed, Burhan
Sarker, Forkan
Dhakal, Hom N.
author_facet Saifullah, Abu
Radhakrishnan, Pappu
Wang, Lei
Saeed, Burhan
Sarker, Forkan
Dhakal, Hom N.
author_sort Saifullah, Abu
collection PubMed
description In the rotational moulding industry, non-used, scrap, and waste purge materials have tremendous potential to be reprocessed and applied in skin-foam-skin sandwich structures to replace and reduce the use of virgin polymers. This approach not only encourages the re-use of these waste materials but also significantly contributes to reduce environmental impacts associated with the use of virgin polymers in this sector. The demand of rotationally moulded sandwich structures is rapidly increasing in automotive, marine, and storage tanks, where investigating their impact and after-impact responses are crucial. Hence, this study investigated the low-velocity impact (LVI) and flexure-after-impact (FAI) responses of rotationally moulded sandwich structures manufactured using reprocessed materials. Results obtained from LVI induced damage at two different incident energy levels (15 J, 30 J), and the residual flexural strength of impacted structures evaluated by three-points bending tests were compared with non-reprocessed sandwich structures (virgin materials). The impact damage progression mechanism was characterized using the X-ray micro-computer-tomography technique. Reprocessed sandwiches demonstrated 91% and 66% post-impact residual strength at 15 J and 30 J respectively, while for non-reprocessed sandwiches, these values were calculated as 93% and 88%. Although reprocessed sandwich structures showed a lower performance over non-reprocessed sandwiches, they have a strong potential to be used in sandwich structures for various applications.
format Online
Article
Text
id pubmed-9501101
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-95011012022-09-24 Reprocessed Materials Used in Rotationally Moulded Sandwich Structures for Enhancing Environmental Sustainability: Low-Velocity Impact and Flexure-after-Impact Responses Saifullah, Abu Radhakrishnan, Pappu Wang, Lei Saeed, Burhan Sarker, Forkan Dhakal, Hom N. Materials (Basel) Article In the rotational moulding industry, non-used, scrap, and waste purge materials have tremendous potential to be reprocessed and applied in skin-foam-skin sandwich structures to replace and reduce the use of virgin polymers. This approach not only encourages the re-use of these waste materials but also significantly contributes to reduce environmental impacts associated with the use of virgin polymers in this sector. The demand of rotationally moulded sandwich structures is rapidly increasing in automotive, marine, and storage tanks, where investigating their impact and after-impact responses are crucial. Hence, this study investigated the low-velocity impact (LVI) and flexure-after-impact (FAI) responses of rotationally moulded sandwich structures manufactured using reprocessed materials. Results obtained from LVI induced damage at two different incident energy levels (15 J, 30 J), and the residual flexural strength of impacted structures evaluated by three-points bending tests were compared with non-reprocessed sandwich structures (virgin materials). The impact damage progression mechanism was characterized using the X-ray micro-computer-tomography technique. Reprocessed sandwiches demonstrated 91% and 66% post-impact residual strength at 15 J and 30 J respectively, while for non-reprocessed sandwiches, these values were calculated as 93% and 88%. Although reprocessed sandwich structures showed a lower performance over non-reprocessed sandwiches, they have a strong potential to be used in sandwich structures for various applications. MDPI 2022-09-19 /pmc/articles/PMC9501101/ /pubmed/36143802 http://dx.doi.org/10.3390/ma15186491 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Saifullah, Abu
Radhakrishnan, Pappu
Wang, Lei
Saeed, Burhan
Sarker, Forkan
Dhakal, Hom N.
Reprocessed Materials Used in Rotationally Moulded Sandwich Structures for Enhancing Environmental Sustainability: Low-Velocity Impact and Flexure-after-Impact Responses
title Reprocessed Materials Used in Rotationally Moulded Sandwich Structures for Enhancing Environmental Sustainability: Low-Velocity Impact and Flexure-after-Impact Responses
title_full Reprocessed Materials Used in Rotationally Moulded Sandwich Structures for Enhancing Environmental Sustainability: Low-Velocity Impact and Flexure-after-Impact Responses
title_fullStr Reprocessed Materials Used in Rotationally Moulded Sandwich Structures for Enhancing Environmental Sustainability: Low-Velocity Impact and Flexure-after-Impact Responses
title_full_unstemmed Reprocessed Materials Used in Rotationally Moulded Sandwich Structures for Enhancing Environmental Sustainability: Low-Velocity Impact and Flexure-after-Impact Responses
title_short Reprocessed Materials Used in Rotationally Moulded Sandwich Structures for Enhancing Environmental Sustainability: Low-Velocity Impact and Flexure-after-Impact Responses
title_sort reprocessed materials used in rotationally moulded sandwich structures for enhancing environmental sustainability: low-velocity impact and flexure-after-impact responses
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9501101/
https://www.ncbi.nlm.nih.gov/pubmed/36143802
http://dx.doi.org/10.3390/ma15186491
work_keys_str_mv AT saifullahabu reprocessedmaterialsusedinrotationallymouldedsandwichstructuresforenhancingenvironmentalsustainabilitylowvelocityimpactandflexureafterimpactresponses
AT radhakrishnanpappu reprocessedmaterialsusedinrotationallymouldedsandwichstructuresforenhancingenvironmentalsustainabilitylowvelocityimpactandflexureafterimpactresponses
AT wanglei reprocessedmaterialsusedinrotationallymouldedsandwichstructuresforenhancingenvironmentalsustainabilitylowvelocityimpactandflexureafterimpactresponses
AT saeedburhan reprocessedmaterialsusedinrotationallymouldedsandwichstructuresforenhancingenvironmentalsustainabilitylowvelocityimpactandflexureafterimpactresponses
AT sarkerforkan reprocessedmaterialsusedinrotationallymouldedsandwichstructuresforenhancingenvironmentalsustainabilitylowvelocityimpactandflexureafterimpactresponses
AT dhakalhomn reprocessedmaterialsusedinrotationallymouldedsandwichstructuresforenhancingenvironmentalsustainabilitylowvelocityimpactandflexureafterimpactresponses