Rheology and curing characteristics of dual-curable automotive clearcoats using thermal radical initiator derived from O-imino-isourea and photo-initiator
DC Field | Value | Language |
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dc.contributor.author | Hwang, Ji Won | - |
dc.contributor.author | Kim, Kyung Nam | - |
dc.contributor.author | Lee, Gil Sun | - |
dc.contributor.author | Nam, Joon Hyun | - |
dc.contributor.author | Noh, Seung Man | - |
dc.contributor.author | Jung, Hyun Wook | - |
dc.date.accessioned | 2021-09-05T19:59:10Z | - |
dc.date.available | 2021-09-05T19:59:10Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2013-11 | - |
dc.identifier.issn | 0300-9440 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/101819 | - |
dc.description.abstract | The curing characteristics of clearcoats, including a thermal curing initiator (TRI) newly designed from O-imino-isourea and photo-initiator (PI), were investigated by means of different mono-curing and dual-curing pathways. The competitive relationship between TRI and PI on the curing pattern, reacting with acrylate double bonds in a clearcoat was elucidated by altering the UV and thermal sequence in the dual-curing process, through various experimental methods. From the rheological properties of clearcoats along the curing time, two dual-curing methods showed the different evolution of curing patterns. In the UV-thermal dual-curing case, the initial infusion of UV light promoted free radical polymerization during the subsequent thermal curing by generating considerable free radicals, and exhibiting a higher growth rate of elastic modulus during the curing in comparison with the thermal-UV dual-curing case. However, the final modulus value in the thermal-UV dual-curing case was higher due to the suppression of thermal curing by the steric hindrance in the UV-thermal dual-curing. The level of crosslinked networks in clearcoats via different curing steps can be explicitly figured out from the double bond conversion from FT-IR, curing pattern from rigid-body pendulum test, and scratch properties from nano-scratch test. (C) 2013 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | SCRATCH CHARACTERISTICS | - |
dc.subject | CROSS-LINKING | - |
dc.subject | UV | - |
dc.subject | POLYMERIZATION | - |
dc.subject | ACRYLATE | - |
dc.subject | POLYMERS | - |
dc.subject | KINETICS | - |
dc.subject | SYSTEMS | - |
dc.title | Rheology and curing characteristics of dual-curable automotive clearcoats using thermal radical initiator derived from O-imino-isourea and photo-initiator | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Jung, Hyun Wook | - |
dc.identifier.doi | 10.1016/j.porgcoat.2013.07.019 | - |
dc.identifier.scopusid | 2-s2.0-84883451905 | - |
dc.identifier.wosid | 000324849700019 | - |
dc.identifier.bibliographicCitation | PROGRESS IN ORGANIC COATINGS, v.76, no.11, pp.1666 - 1673 | - |
dc.relation.isPartOf | PROGRESS IN ORGANIC COATINGS | - |
dc.citation.title | PROGRESS IN ORGANIC COATINGS | - |
dc.citation.volume | 76 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 1666 | - |
dc.citation.endPage | 1673 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Applied | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.subject.keywordPlus | SCRATCH CHARACTERISTICS | - |
dc.subject.keywordPlus | CROSS-LINKING | - |
dc.subject.keywordPlus | UV | - |
dc.subject.keywordPlus | POLYMERIZATION | - |
dc.subject.keywordPlus | ACRYLATE | - |
dc.subject.keywordPlus | POLYMERS | - |
dc.subject.keywordPlus | KINETICS | - |
dc.subject.keywordPlus | SYSTEMS | - |
dc.subject.keywordAuthor | Dual curing | - |
dc.subject.keywordAuthor | Clearcoats | - |
dc.subject.keywordAuthor | Thermal radical initiator | - |
dc.subject.keywordAuthor | Photo-initiator | - |
dc.subject.keywordAuthor | Elastic modulus | - |
dc.subject.keywordAuthor | Scratch property | - |
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