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首页> 外文期刊>Polymers for advanced technologies >Preparation and thermal properties of a novel UV-cured star polyurethane acrylate coating
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Preparation and thermal properties of a novel UV-cured star polyurethane acrylate coating

机译：新型紫外线固化星形聚氨酯丙烯酸酯涂料的制备和热性能

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摘要

A novel star polyurethane acrylate (SPUA) used for UV-curable coating was prepared from 2,4-toluene diisocyanate, 2-hydroxyethyl arcylate, and hexakis(2-hydroxyethyl)melamine, and characterized using FTIR, 1H-NMR, and elemental analysis. Its UV curing behaviors investigated via FTIR clearly indicated that this monomer could be cured rapidly at air atmosphere. The conversion of the unsaturated bond of the cured monomer sample is near to 72% after exposed under UV light for 40 sec. The hardness, flexibility, and mechanical properties of the cured film were also investigated. The thermal stability of the cured film was studied using thermogravimetric analysis (TGA) and real time Fourier transform infrared (RTFTIR). Results showed that this oligomer has some superior properties and can be used for UV curing coating.
机译：一种新型的用于紫外光固化涂料的星形聚氨酯丙烯酸酯（SPUA），是由2,4-甲苯二异氰酸酯，2-羟乙基芳基酸酯和六（2-羟乙基）三聚氰胺制备的，并使用FTIR，1H-NMR和元素分析进行​​了表征。通过FTIR研究的其UV固化行为清楚地表明，该单体可以在大气中快速固化。在紫外光下曝光40秒钟后，固化单体样品的不饱和键转化率接近72％。还研究了固化膜的硬度，柔韧性和机械性能。使用热重分析（TGA）和实时傅里叶变换红外（RTFTIR）研究了固化膜的热稳定性。结果表明，该低聚物具有一些优异的性能，可用于UV固化涂料。

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