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Facilitating high-temperature curing of natural rubber with a conventional accelerated-sulfur system using a synergistic combination of bismaleimides

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dc.title Facilitating high-temperature curing of natural rubber with a conventional accelerated-sulfur system using a synergistic combination of bismaleimides en
dc.contributor.author Gopi Sathi, Shibulal
dc.contributor.author Harea, Evghenii
dc.contributor.author Machů, Aleš
dc.contributor.author Stoček, Radek
dc.relation.ispartof Express Polymer Letters
dc.identifier.issn 1788-618X Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2020
utb.relation.volume 15
utb.relation.issue 1
dc.citation.spage 16
dc.citation.epage 27
dc.type article
dc.language.iso en
dc.publisher BME-PT and GTE
dc.identifier.doi 10.3144/expresspolymlett.2021.3
dc.relation.uri http://www.expresspolymlett.com/letolt.php?file=EPL-0010772&mi=c
dc.subject rubber en
dc.subject bismaleimide en
dc.subject curing en
dc.subject reversion en
dc.subject Diels-Alder reaction en
dc.description.abstract It is well known that high-temperature curing of natural rubber (NR) with a conventional accelerated-sulfur (CV) system is limited because of reversion. This paper describes the curing behavior and the reversion resistance characteristics of unfilled NR with a CV system in the presence of two different bismaleimides: Perkalink 900 (PL) and Maleide F (MF). Rheometer studies reveal that MF can directly interact with the NR during accelerated-sulfur curing and forms some thermally stable bismaleimide type crosslinks in the beginning via Alder-ene reaction. However, even with the use of 4 phr of MF, a considerable reversion was noticed during the curing of NR with CV at 180 °C for 1 hr. A high dosage (5 phr) of MF was therefore required for a complete reversion free plateau type cure pattern. On the other hand, PL has no direct interaction with the NR at the beginning of the curing reaction. Moreover, even 1 phr PL exhibits a marching modulus curing behavior via Diels-Alder reaction. Therefore, to solve the individual issues of these chemicals, a synergistic combination of MF and PL has been identified and applied to facilitate the high-temperature curing of NR /CV devoid of reversion with a plateau type cure pattern. © BME-PT. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1010031
utb.identifier.obdid 43881859
utb.identifier.scopus 2-s2.0-85095706930
utb.identifier.wok 000583785100003
utb.source j-scopus
dc.date.accessioned 2020-11-27T13:06:28Z
dc.date.available 2020-11-27T13:06:28Z
dc.description.sponsorship project Centre of Polymer Systems - Strengthening Research Capacity [CZ.1.05/2.1.00/19.0409]; NPU I [LO1504]
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Gopi Sathi, Shibulal
utb.contributor.internalauthor Harea, Evghenii
utb.contributor.internalauthor Machů, Aleš
utb.contributor.internalauthor Stoček, Radek
utb.fulltext.affiliation S. Gopi Sathi *, E. Harea, A. Machů, R. Stoček Centre of Polymer Systems, Tomas Bata University in Zlín, Tř. Tomáše Bati 5678, 760 01 Zlín, Czech Republic Corresponding author, e-mail: sathi@utb.cz
utb.fulltext.dates Received 23 April 2020 accepted in revised form 16 June 2020
utb.fulltext.sponsorship This article was written with the support of the project Centre of Polymer Systems-Strengthening Research Capacity (reg. number: CZ.1.05/2.1.00/19.0409) as well as NPU I (LO1504).
utb.wos.affiliation [Sathi, S. Gopi; Harea, E.; Machu, A.; Stocek, R.] Tomas Bata Univ Zlin, Ctr Polymer Syst, Tr Tomase Bati 5678, Zlin 76001, Czech Republic
utb.scopus.affiliation Centre of Polymer Systems, Tomas Bata University in Zlín, Tř. Tomáše Bati 5678, Zlín, 760 01, Czech Republic
utb.fulltext.projects CZ.1.05/2.1.00/19.0409
utb.fulltext.projects LO1504
utb.fulltext.ou Centre of Polymer Systems
utb.fulltext.ou Centre of Polymer Systems
utb.fulltext.ou Centre of Polymer Systems
utb.fulltext.ou Centre of Polymer Systems
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