The study of some modified polyurethanes(IV) ; curing of polyester ase polyurethane coatings with ultraviolet irradiation

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Title:	The study of some modified polyurethanes(IV);curing of polyester ase polyurethane coatings with ultraviolet irradiation
Other Titles:	改良式聚胺基甲酸乙酯研究(IV)紫外光硬化之聚胺基甲酸乙酯塗料
Authors:	陳幹男;Chen, Kan-nan;王生文;Sheng-Wen Wang
Contributors:	淡江大學化學學系
Date:	1986-12
Issue Date:	2009-12-01
Publisher:	中國化學會
Abstract:	Ultraviolet curable polyure thane oligomers were prepared from toluene diiocyanates and polyester polyols based polyurethane prepolymers and methacrylates were the terminal groups. Trimethylolpropane trimethacrylate (TMPTA) was added into the corresponding polyurethane methacrylate oligo-mers as a reactive diluent. Benzophenone or benzoin ethylether was served as a photosensitizer or photoinitiator, respectively. UV spectra of UV curable PU system could be a reference for the selection of photosensitizers (or photoinitiators). The rate of disappearance on double bonds of methacr-ylates terminated PU could be detected by FT-IR (on 1635 cm^(-1)). The properties (e.g. gel contents, pencil hardness, tensile strength, impact strength and thermogravimetry) of the cured film with various UV irradiation time were investigated.
Relation:	化學 44(4)，頁143-151
DOI:	10.6623/chem.1986042
Appears in Collections:	[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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