Design and properties of UV cured polyurethane dispersions |
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| Authors: | B.K. Kim B.U. Ahn M.H. Lee S.K. Lee |
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| Affiliation: | 1. Department of Polymer Science and Engineering, Pusan National University, Busan 609-735, Republic of Korea;2. Department of Chemistry, Pusan National University, Busan 609-735, Republic of Korea |
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| Abstract: | UV curable polyurethane dispersions (UV-PUDs) having different prepolymer chain length, different types of capping agent (2,3-epoxy-1-propanol (glycidol) and 2-hydroxyethylacrylate (HEA)) and ionic center have been synthesized. Films based on polyurethane prepolymer were tack free prior to cure and showed high elongation at break over 200% as well as high hardness and modulus, especially when the terminal isocyanate groups were capped with glycidol. |
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| Keywords: | Polyurethane dispersion UV-curing Glycidol High elongation Tack free |
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