Publication:
Self-healable and recyclable nitrile rubber based on thermoreversible ionic crosslink network

cris.author.scopus-author-id 57201736993
cris.author.scopus-author-id 14011864300
cris.author.scopus-author-id 36149536300
cris.author.scopus-author-id 57350894900
cris.author.scopus-author-id 56411963800
cris.virtual.department Universiti Malaysia Perlis
cris.virtual.department Universiti Malaysia Perlis
cris.virtualsource.department 780b30e1-a041-4a5d-8b04-79055d29e623
cris.virtualsource.department b14b3107-c16b-4886-b057-5b8f81989c79
dc.contributor.author Mohd Hafiz Zainol
dc.contributor.author Ariff Z.M.
dc.contributor.author Mohd Firdaus Omar
dc.contributor.author Ping T.M.
dc.contributor.author Shuib R.K.
dc.date.accessioned 2024-09-30T05:04:03Z
dc.date.available 2024-09-30T05:04:03Z
dc.date.issued 2022-04-15
dc.description.abstract In this work, commercial carboxylated nitrile butadiene rubber (XNBR) was ionically crosslinked with zinc thiolate forming reversible ionic salt bonding between carboxy groups (COOH) in XNBR chains and Zn2+ ions from zinc thiolate. The reversible nature of the ionic crosslinks allows rearrangement of rubber molecular chains under an external heat and provides self-healing capability to the materials. The amount of zinc thiolate was varied at five levels (10, 20, 30, 40, and 50 per hundred rubber (phr) to assess the maximum reaction between COOH and Zn2+ ion for the formation of ionic crosslink networks. Evidence that ionic crosslinks formed within the materials was determined by the increased of curing torque and the chemical interaction was identified by Fourier transform infrared spectroscopy. An equilibrium swelling testing quantitatively measured the ionic crosslink density within the material and XNBR with 30-phr zinc thiolate showed the highest ionic crosslink density. The results revealed that, damaged XNBR with 30 phr zinc thiolate able to recover 98% of its initial properties under thermal healing at 150°C for 10 min. Furthermore, the material can be reprocessed and recycled for three times without compromising its initial properties. Perhaps, the tensile strength increased 360% at approximately 23 MPa, after third recycling process. In addition, the self-healing XNBR also have excellent weldability on the damage sample, which shows high potential for repairing of existing rubber products installed in heavy engineering applications.
dc.identifier.doi 10.1002/app.51948
dc.identifier.scopus 2-s2.0-85119677297
dc.identifier.uri https://hdl.handle.net/20.500.14170/6559
dc.language.iso en
dc.relation.funding Universiti Sains Malaysia
dc.relation.grantno 1001/PBAHAN/8014138
dc.relation.ispartof Journal of Applied Polymer Science
dc.relation.ispartofseries Journal of Applied Polymer Science
dc.relation.issn 00218995
dc.title Self-healable and recyclable nitrile rubber based on thermoreversible ionic crosslink network
dc.type Journal
dspace.entity.type Publication
oaire.citation.issue 15
oaire.citation.volume 139
oairecerif.affiliation.orgunit School of Materials and Mineral Resources Engineering
oairecerif.affiliation.orgunit School of Materials and Mineral Resources Engineering
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit School of Materials and Mineral Resources Engineering
oairecerif.affiliation.orgunit School of Materials and Mineral Resources Engineering
oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.citation.number 51948
person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
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person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
person.identifier.orcid 0000-0003-3982-2821
person.identifier.scopus-author-id 57201736993
person.identifier.scopus-author-id 14011864300
person.identifier.scopus-author-id 36149536300
person.identifier.scopus-author-id 57350894900
person.identifier.scopus-author-id 56411963800
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