摘要： 以甲基丙烯酸十二氟庚酯、丙烯酸六氟丁酯、丙烯酸正丁酯、丙烯酸、甲基丙烯酸缩水甘油酯为主要原料合成了低折射率含氟丙烯酸树脂（ＦＡ）。 通过红外光谱对 ＦＡ 的结构进行了表征，研究了各原料对 ＦＡ 性能的影响。 以 ＦＡ 树脂为主体，配合含氟活性稀释剂、多官能活性稀释剂、光引发剂制备了折射率低于１.３７８ ０的紫外光固化光纤涂料，分析了各组分对涂料外观、折射率、黏度、固化速度及力学性能的影响。

关键词: 光固化, 光纤涂料, 含氟丙烯酸树脂, 低折射率

Abstract: A fluorinated acrylate (FA) with low refractive index was synthesized based on dodecafluoroheptyl methacrylate, hexafluorobuty acrylate, n-butyl acrylate, acrylic acid and glycidyl methacrylate. The structure of FA was characterized by Fourier transform infrared spectroscopy, and the effects of the raw materials on the properties of FA were studied.The UV-curable optical fiber coatings with refractive index less than 1. 378 0 was prepared by u-sing the main matrix FA and other additives including reactive fluorinated diluent, polyfunc-tional reactive diluent and photoinitiator. The influence of different component on the appear-ance, refractive index, viscosity, curing speed and mechanical properties of the coatings were analyzed.

Key words: UV-curable, optical fiber coatings, fluorinated acrylate, low refractive in-dex