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首页> 外文期刊>Journal of coatings technology and research >Preparation of hyperbranched polyester polyol-based urethane acrylates and applications on UV-curable wood coatings
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Preparation of hyperbranched polyester polyol-based urethane acrylates and applications on UV-curable wood coatings

机译：超支化聚酯多元醇基聚氨酯丙烯酸酯的制备及其在可紫外光固化木器涂料中的应用

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摘要

In the present study, hyperbranched urethane acrylates (UA/HB-PEs) were synthesized by modifying the hydroxyl groups of hyperbranched polyester polyols (HB-PEs). The structure of oligo-mers were characterized by FTIR and 'H NMR spectroscopic techniques. Formulations containing UA/HB-PEs, reactive diluents, and photoinitiator were applied onto wood substrates and successfully polymerized under UV-irradiation. The coating performances and thermal properties of UV-cured films were evaluated. The studies on film characteristics reveal that the incorporation of UA/HB-PE afforded coatings with good adhesion and high gloss properties. It is observed that UV-cured coatings originated from [2,2-bis(4-β-hydroxyethoxy) phenyl propane] (HB-HEPA)-and [2,2-bis(4-β-hydroxyethoxy) phenyl 6F propane] (HB-HEPFA)-based oligomers possessed better surface and mechanical properties.
机译：在本研究中，通过改性超支化聚酯多元醇（HB-PEs）的羟基合成了超支化聚氨酯丙烯酸酯（UA / HB-PEs）。通过FTIR和1 H NMR光谱技术表征低聚物的结构。将包含UA / HB-PE，反应性稀释剂和光引发剂的配方涂在木材基材上，并在紫外线照射下成功聚合。评价了紫外线固化膜的涂层性能和热性能。对薄膜特性的研究表明，UA / HB-PE的加入可提供具有良好附着力和高光泽度的涂料。观察到，紫外线固化涂料源自[2,2-双（4-β-羟基乙氧基）苯基丙烷]（HB-HEPA）-和[2,2-双（4-β-羟基乙氧基）苯基6F丙烷] （HB-HEPFA）基低聚物具有更好的表面和机械性能。

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