Abstract Novel UV-curable methacrylate functionalized fluorosilicone resin (MAFSR) and sulfhydryl functionalized fluorosilicone resin (SFSR) were synthesized respectively. The molecular structure, UV curing process, thermal properties and surface properties were studied. Further application as protective coatings in the field of printed circuit board (PCB) was explored. Results show that the MAFSR with more than 30 wt % SFSR possess a high carbon-carbon double bonds conversion above 95 % after 15 s UV exposure. Besides, the surface energy of the coatings is as low as 11.5 mN/m, showing excellent hydrophobicity. The XPS results further reveal that the migration and orientation of the fluorine groups to the surface is an intrinsic reason for low surface energy. In addition, the coatings also demonstrate excellent heat resistance and solvent resistance. This study shows that UV-curable fluorosilicone resins are presumably promising special protective coatings for PCB.

中文翻译：

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具有令人印象深刻的疏水性和耐溶剂性的紫外线固化氟硅涂料的制造

摘要 分别合成了新型紫外光固化甲基丙烯酸酯官能化氟硅树脂(MAFSR)和巯基官能化氟硅树脂(SFSR)。研究了分子结构、UV固化工艺、热性能和表面性能。探索了在印刷电路板 (PCB) 领域作为保护涂层的进一步应用。结果表明，在紫外线照射 15 秒后，具有超过 30 wt% SFSR 的 MAFSR 具有高于 95% 的高碳碳双键转化率。此外，涂层的表面能低至 11.5 mN/m，显示出优异的疏水性。XPS 结果进一步表明，氟基团向表面的迁移和取向是低表面能的内在原因。此外，该涂料还表现出优异的耐热性和耐溶剂性。这项研究表明，紫外线固化氟硅树脂可能是很有前途的 PCB 特殊保护涂层。