The influence of silicon-containing acrylate as active diluent on the properties of UV-cured epoxydiacrylate films
The influence of silicon-containing acrylate as active diluent on the properties of UV-cured epoxydiacrylate films
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DOI：
10.1016/j.eurpolymj.2003.10.018
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发表时间：
2004-03
影响因子：
6
通讯作者：
Hongbo Liu;Mingcai Chen;Zhitang Huang;Kai Xu;Xiuju Zhang
中科院分区：
文献类型：
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作者：
Hongbo Liu;Mingcai Chen;Zhitang Huang;Kai Xu;Xiuju Zhang
以n-环己基-γ-氨基丙基甲基二甲氧基硅烷（CAMS）与三甲基丙烷三丙烯酸酯（TMPTA）为原料，采用michael型加成反应制备了一种新型含硅丙烯酸酯，可作为光固化环氧二丙烯酸酯体系的良好活性稀释剂。用FTIR表征了CAMS的-NH基团与TMPTA的丙烯酸基团的反应性。新型活性稀释剂在紫外光固化聚合物薄膜中的含量为5% ~ 15%。对紫外光固化膜的力学、物理和热性能进行了研究：含硅丙烯酸酯含量的增加使膜的表面性能发生了巨大的变化，除了相对伸长率外，机械性能也有所下降。对含硅丙烯酸酯的热重分析表明，在700°C时，将硅加入到结构中可以获得较高的炭收率。光固化膜的吸水率也受含硅丙烯酸酯用量的影响。
A new silicon-containing acrylate, which can be a good active diluent for UV-curable epoxydiacrylate systems, was prepared by reacting N-cyclohexyl-γ-aminopropylmethyldimethoxysilane (CAMS) with trimethylolpropane triacrylate (TMPTA) by Michael-type addition reaction. The reactivity of –NH groups of CAMS with the acrylic groups of TMPTA was characterized by FTIR. The contents of the new active diluent in the UV-cured polymeric films were varied between 5% and 15% by weight. Mechanical, physical, and thermal characterizations of the UV-cured films were investigated: An increase in silicon-containing acrylate content caused a dramatic change of the surface properties of the films, and a decrease in mechanical properties besides the relative elongation. Thermogravimetric analysis of silicon-containing acrylate revealed that incorporating silicon into the structure resulted in a high char yield at 700 °C. Water absorption values of UV-cured films were also affected by the amount of silicon-containing acrylate.