| Synthesis of a Novel UV Curable Aqueous Dispersion Polyurethane PDHA-PEDA-PU and the Properties of Cured Film |
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| 引用本文： | Chen Yan BAI Xing Yuan ZHANG Jia Bing DAI Wei Hu LI. Synthesis of a Novel UV Curable Aqueous Dispersion Polyurethane PDHA-PEDA-PU and the Properties of Cured Film[J]. 中国化学快报, 2006, 17(3): 369-372 |
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| 作者姓名： | Chen Yan BAI Xing Yuan ZHANG Jia Bing DAI Wei Hu LI |
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| 作者单位： | Chen Yan BAI，Xing Yuan ZHANG?，Jia Bing DAI，Wei Hu LI Department of Polymer Science and Engineering，University of Science and Technology of China，Hefei 230026 |
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| 基金项目： | Financial support from the National Natural Jiangsu Provincial Development Program acknowledged. Science Foundation of China （No. 50273035） and the of Science and Technology （No. BE2003105） are acknowledged. |
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| 摘 要： | Because of the merits in environmental protection and lower energy consumption, ultraviolet (UV) curable coatings have been gained more and more attention and speedy development in the past decades. UV curable waterborne polyurethane has been employed pop…
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| 关 键 词： | 合成 紫外光凝固 水驱散 聚亚安酯 PDHA-PEDA-PU 凝固膜 聚酯二羟基乙醇 二羟甲基丙酸 |
| 收稿时间： | 2005-08-22 |
Synthesis of a Novel UV Curable Aqueous Dispersion Polyurethane PDHA-PEDA-PU and the Properties of Cured Film |
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| Chen Yan BAI,Xing Yuan ZHANG,Jia Bing DAI,Wei Hu LI. Synthesis of a Novel UV Curable Aqueous Dispersion Polyurethane PDHA-PEDA-PU and the Properties of Cured Film[J]. Chinese Chemical Letters, 2006, 17(3): 369-372 |
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| Authors: | Chen Yan BAI Xing Yuan ZHANG Jia Bing DAI Wei Hu LI |
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| Abstract: | A novel ultraviolet (UV) curable aqueous dispersion polyurethane PDHA-PEDA-PU was synthesized based on isophorone diisocyanate (IPDI), polyester dihydric alcohol (PDHA), dimethylol propionic acid (DMPA), pentaerythritol diacrylate (PEDA), 2-hydroxyethyl acrylate (HEA) and triethylamine (TEA). Acrylate groups were incorporated in the side and end of PDHA-PEDA-PU chain. The C=C content in the chain can be controlled easily through the change of IPDI/PDHA/PEDA ratio. Fourier transform infrared spectroscopy (FTIR) was used to identify the structure of prepolymer, aqueous dispersion and cured polyurethane. The curing rule of the polyurethane for different C=C content has been investigated depending on the change of C=C content during the curing process. The hardness, thermal stability and scrub resistance to MEK of UV cured PDHA-PEDA-PU were also discussed for the samples with different C=C content. |
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| Keywords: | UV curable aqueous dispersion polyurethane. |
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