Investigation of ultraviolet curable waterborne polyurethane acrylate dispersion based on hydroxyl-terminated polybutadiene |
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| Authors: | Zhenbin Niu Xingyuan Zhang Jiabing Dai Heping Zhang |
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| Institution: | (1) Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China;(2) State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, 230026, China |
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| Abstract: | A new kind of ultraviolet (UV) curable waterborne polyurethane acrylate dispersion was synthesized based on hydroxyl-terminated
polybutadiene (HTPB), poly-(propylene glycol) (PPG), isophorene diisocyanate (IPDI), 2-hydroxy ethyl acrylate (HEA) and dimethylol
propionic acid (DMPA) after neutralizing by triethylamine (TEA). 2-Hydroxy-1-4-2-hydroxyethoxy) phenyl]-2-methyl-1-propanone
(Irgacure 2959) was used as a photoinitiator and deionized water as a diluent. Fourier transform infrared (FTIR) analysis
was used to identify the chain structure of the UV-curable polyurethane prepolymer based on HTPB and the curing process. Effects
of relative content of HTPB and PPG on emulsion stability, resistance to water and ethanol, thermal stability, compatibility
of soft and hard segment, as well as the mechanical property of the cured film were investigated.
Translated from Polymer Materials Science and Engineering, 2006, 22(3): 199–203 (in Chinese) |
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| Keywords: | ultraviolet curable waterborne polyurethane acrylate hydroxyl-terminated polybutadiene 2-hydroxy ethyl acrylate |
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