Intrinsic room temperature self-healing natural rubber based on metal thiolate ionic network

An intrinsic self-healing natural rubber featuring reversible metal-thiolate ion networks was fabricated and the corresponding healing mechanism and mechanical properties were presented. The developed materials were able to repair themselves at room temperature upon damage without any external stimu...

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Autores principales:	Nuur Laila Najwa Thajudin, Mohd Hafiz Zainol, Raa Khimi Shuib
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Natural rubber Reversible ionic network Self-healing Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/dc8606edaed2463d90be6106cd0a793b
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spelling	oai:doaj.org-article:dc8606edaed2463d90be6106cd0a793b2021-11-24T04:25:31ZIntrinsic room temperature self-healing natural rubber based on metal thiolate ionic network0142-941810.1016/j.polymertesting.2020.106975https://doaj.org/article/dc8606edaed2463d90be6106cd0a793b2021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941820322042https://doaj.org/toc/0142-9418An intrinsic self-healing natural rubber featuring reversible metal-thiolate ion networks was fabricated and the corresponding healing mechanism and mechanical properties were presented. The developed materials were able to repair themselves at room temperature upon damage without any external stimuli. Reversible metal-thiolate ion networks were proven to form within the rubber material. These networks dominated the cross-linking system and were identified by Differential Scanning Calorimetry (DSC) and Fourier-transform Infrared Spectroscopy (FTIR). Meanwhile, the quantitative amount of metal-thiolate ion networks and covalent crosslinks was determined by swelling testing. Scanning Electron Microscopy (SEM) results revealed that intermolecular diffusion had occurred at the fracture area of the self-healing samples. The results revealed that the mechanical properties could be 100% regenerated after the broken samples were brought into contact with each other. It was also found that self-healing increased by 60% of the material lifespan. This new material is expected to open up promising avenues for the manufacturing of sustainable rubber products.Nuur Laila Najwa ThajudinMohd Hafiz ZainolRaa Khimi ShuibElsevierarticleNatural rubberReversible ionic networkSelf-healingPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 93, Iss , Pp 106975- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Natural rubber Reversible ionic network Self-healing Polymers and polymer manufacture TP1080-1185
spellingShingle	Natural rubber Reversible ionic network Self-healing Polymers and polymer manufacture TP1080-1185 Nuur Laila Najwa Thajudin Mohd Hafiz Zainol Raa Khimi Shuib Intrinsic room temperature self-healing natural rubber based on metal thiolate ionic network
description	An intrinsic self-healing natural rubber featuring reversible metal-thiolate ion networks was fabricated and the corresponding healing mechanism and mechanical properties were presented. The developed materials were able to repair themselves at room temperature upon damage without any external stimuli. Reversible metal-thiolate ion networks were proven to form within the rubber material. These networks dominated the cross-linking system and were identified by Differential Scanning Calorimetry (DSC) and Fourier-transform Infrared Spectroscopy (FTIR). Meanwhile, the quantitative amount of metal-thiolate ion networks and covalent crosslinks was determined by swelling testing. Scanning Electron Microscopy (SEM) results revealed that intermolecular diffusion had occurred at the fracture area of the self-healing samples. The results revealed that the mechanical properties could be 100% regenerated after the broken samples were brought into contact with each other. It was also found that self-healing increased by 60% of the material lifespan. This new material is expected to open up promising avenues for the manufacturing of sustainable rubber products.
format	article
author	Nuur Laila Najwa Thajudin Mohd Hafiz Zainol Raa Khimi Shuib
author_facet	Nuur Laila Najwa Thajudin Mohd Hafiz Zainol Raa Khimi Shuib
author_sort	Nuur Laila Najwa Thajudin
title	Intrinsic room temperature self-healing natural rubber based on metal thiolate ionic network
title_short	Intrinsic room temperature self-healing natural rubber based on metal thiolate ionic network
title_full	Intrinsic room temperature self-healing natural rubber based on metal thiolate ionic network
title_fullStr	Intrinsic room temperature self-healing natural rubber based on metal thiolate ionic network
title_full_unstemmed	Intrinsic room temperature self-healing natural rubber based on metal thiolate ionic network
title_sort	intrinsic room temperature self-healing natural rubber based on metal thiolate ionic network
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/dc8606edaed2463d90be6106cd0a793b
work_keys_str_mv	AT nuurlailanajwathajudin intrinsicroomtemperatureselfhealingnaturalrubberbasedonmetalthiolateionicnetwork AT mohdhafizzainol intrinsicroomtemperatureselfhealingnaturalrubberbasedonmetalthiolateionicnetwork AT raakhimishuib intrinsicroomtemperatureselfhealingnaturalrubberbasedonmetalthiolateionicnetwork
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Intrinsic room temperature self-healing natural rubber based on metal thiolate ionic network

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