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Potent Application of Scrap from the Modified Natural Rubber Production as Oil Absorbent

The production of raw natural rubber always ends up with leftover latex. This latex is later collected to produce low grades of rubber. The collection of this latex also depends on the latex’s quality. However, reproducing the latex may not be applicable if the latex contains many specks of dirt whi...

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Autores principales: Thitithammawong, Anoma, Saiwari, Sitisaiyidah, Salaeh, Subhan, Hayeemasae, Nabil
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9736379/
https://www.ncbi.nlm.nih.gov/pubmed/36501460
http://dx.doi.org/10.3390/polym14235066
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author Thitithammawong, Anoma
Saiwari, Sitisaiyidah
Salaeh, Subhan
Hayeemasae, Nabil
author_facet Thitithammawong, Anoma
Saiwari, Sitisaiyidah
Salaeh, Subhan
Hayeemasae, Nabil
author_sort Thitithammawong, Anoma
collection PubMed
description The production of raw natural rubber always ends up with leftover latex. This latex is later collected to produce low grades of rubber. The collection of this latex also depends on the latex’s quality. However, reproducing the latex may not be applicable if the latex contains many specks of dirt which will eventually be discarded. In this work, an alternative solution was to utilize such rubber in a processable form. This scrap rubber (SR) from the production of natural rubber grafted with polymethyl methacrylate (NR-g-PMMA) production was recovered to prepare an oil-swellable rubber. The rubber blends were turned into cellular structures to increase the oil swellability. To find the suitable formulation and cellular structure of the foam, the foams were prepared by blending SR with virgin natural rubber (NR) at various ratios, namely 0/100, 20/80, 30/70, 50/50, 70/30, 80/20, and 100/0 (phr/phr). The foam formation strongly depended on the SR, as it prevented gas penetration throughout the matrix. Consequently, small cells and thick cell walls were observed. This structure reduced the oil swellability from 7.09 g/g to 5.02 g/g. However, it is interesting to highlight that the thermal stability of the foam increased over the addition of SR, which is likely due to the higher thermal stability of the NR-g-PMMA waste or SR. In summary, the blending NR with 30 phr of SR provided good oil swellability, processability, and morphology, which benefit oil recovery application. The results obtained from this study will be used for further experiments on the enhancement of oil absorbency by applying other key factors. This work is considered a good initiative for preparing the oil-absorbent material based on scrap from modified natural rubber production.
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spelling pubmed-97363792022-12-11 Potent Application of Scrap from the Modified Natural Rubber Production as Oil Absorbent Thitithammawong, Anoma Saiwari, Sitisaiyidah Salaeh, Subhan Hayeemasae, Nabil Polymers (Basel) Article The production of raw natural rubber always ends up with leftover latex. This latex is later collected to produce low grades of rubber. The collection of this latex also depends on the latex’s quality. However, reproducing the latex may not be applicable if the latex contains many specks of dirt which will eventually be discarded. In this work, an alternative solution was to utilize such rubber in a processable form. This scrap rubber (SR) from the production of natural rubber grafted with polymethyl methacrylate (NR-g-PMMA) production was recovered to prepare an oil-swellable rubber. The rubber blends were turned into cellular structures to increase the oil swellability. To find the suitable formulation and cellular structure of the foam, the foams were prepared by blending SR with virgin natural rubber (NR) at various ratios, namely 0/100, 20/80, 30/70, 50/50, 70/30, 80/20, and 100/0 (phr/phr). The foam formation strongly depended on the SR, as it prevented gas penetration throughout the matrix. Consequently, small cells and thick cell walls were observed. This structure reduced the oil swellability from 7.09 g/g to 5.02 g/g. However, it is interesting to highlight that the thermal stability of the foam increased over the addition of SR, which is likely due to the higher thermal stability of the NR-g-PMMA waste or SR. In summary, the blending NR with 30 phr of SR provided good oil swellability, processability, and morphology, which benefit oil recovery application. The results obtained from this study will be used for further experiments on the enhancement of oil absorbency by applying other key factors. This work is considered a good initiative for preparing the oil-absorbent material based on scrap from modified natural rubber production. MDPI 2022-11-22 /pmc/articles/PMC9736379/ /pubmed/36501460 http://dx.doi.org/10.3390/polym14235066 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
Thitithammawong, Anoma
Saiwari, Sitisaiyidah
Salaeh, Subhan
Hayeemasae, Nabil
Potent Application of Scrap from the Modified Natural Rubber Production as Oil Absorbent
title Potent Application of Scrap from the Modified Natural Rubber Production as Oil Absorbent
title_full Potent Application of Scrap from the Modified Natural Rubber Production as Oil Absorbent
title_fullStr Potent Application of Scrap from the Modified Natural Rubber Production as Oil Absorbent
title_full_unstemmed Potent Application of Scrap from the Modified Natural Rubber Production as Oil Absorbent
title_short Potent Application of Scrap from the Modified Natural Rubber Production as Oil Absorbent
title_sort potent application of scrap from the modified natural rubber production as oil absorbent
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9736379/
https://www.ncbi.nlm.nih.gov/pubmed/36501460
http://dx.doi.org/10.3390/polym14235066
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