Textile Coloration and Finishing (한국염색가공학회지)
- Volume 11 Issue 4
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- Pages.1-7
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- 1999
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- 1229-0033(pISSN)
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- 2234-036X(eISSN)
Preparation and Properties of UV-Curable Polyurethane Acrylates(I) -Effect of Molecular Weights of Polyol and Diol with Low Molecular Weight into Polymer Chain-
UV-경화 폴리우레탄 아크릴레이트의 제조와 특성(I) -폴리올의 분자량과 저분자량 디올의 도입의 영향-
Abstract
Urethane-acrylate propelymers for secondary coating of optical fiber and high - performance material were prepared from the 4,4'-diphenylmethane diisocyanate(MDI), poly(tetramethylene oxide)glycol(PTMG, Mw 650 or 1000), 1,6-hexanediol(HD), 2-hydroxyethyl acrylate(HEA), and dibutyltin dilaurate as a catalyst. UV-Curable polyurethane acrylates were formulated from the urethane-acrylate prepolymers, three types of reactive diluents(DTs) having mono-, di-, and trifunctional-phenoxyethyl acrylate(PEA), hexanediol diacrylate(HDDA), and trimethylolpropane triacrylate(TMPTA), and 1-hydtoxycyclohexyl phenyl ketone(Irgacure 184) as a photoinitiator. The UV-cured films of polyurethane acrylates were obtained by curing using a medium-pressure mercury lamp(U W/cm,
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