摘要
采用溶胶-凝胶法,以KH550(γ-氨基丙基三乙氧基硅烷)开环改性的双酚A型环氧树脂为原料合成环氧树脂溶胶颗粒,利用含氢硅油(PMHS)对其表面进行疏水改性,通过涂覆的方式在基底表面成功制备超疏水涂膜。研究了含氢硅油、氨水、反应时间对涂膜疏水性能的影响,确定了制备涂膜的最佳工艺条件,探讨了涂膜在热处理和酸碱条件下疏水性能变化规律。结果表明:当PMHS用量为1 mL、氨水用量为8 mL、反应时间为6 h时,所制备的涂膜疏水性能最佳,接触角为156°;热处理温度达到300℃后,涂膜仍具有良好的疏水性能,其接触角为147.6°;强酸、强碱和NaCl溶液中涂膜也能够保持长时间的超疏水性能;形貌分析观察到涂膜具有微纳米双层结构。
In this study,the epoxy resin sol particles were prepared by KH550（γ-aminopropyltriethoxysilane） ring-opened bisphenol a epoxy resins and then its surface hydrophobic was modified by hydrogen silicone oil to obtain the hydrophobic material. With sol-gel method,the modified epoxy resin-PMHS superhydrophobic composite coating was successfully prepared by coating a film on the substrate. The effects of the amount of hydrogen silicone oil,ammonia consumption and the reaction time on the hydrophobic properties of the coatings were investigated as well as the changes of the superhydrophobic properties of the coatings during the heat treatment and acid-alkali resistance test. The optimal technological conditions for the coating are confirmed,when the amount of PMHS is 1 mL,the amount of ammonia is 8 mL and the reaction time is 6 h,reaching a kind of super hydrophobic coating with a contact angle of 156°. The coating film still has good hydrophobic properties and the contact angle of 147. 6° after the heat treatment temperature of 300 ℃. The coating can also maintain a long time super-hydrophobic properties over a wide pH range as well as Na Cl solution. The SEM shows that the coating has micro-nano double-layer structure.
作者
朱杰
郑奎
王丽阁
王恩泽
ZHU Jie;ZHENG Kui;WANG Lige;WANG Enze(School of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China)
出处
《西南科技大学学报》
CAS
2018年第2期12-18,共7页
Journal of Southwest University of Science and Technology
基金
四川省教育厅科技项目(17ZA0399)
关键词
溶胶-凝胶法
含氢硅油
环氧树脂
超疏水涂膜
Sol-gel method
Hydrogen silicone oil
Epoxy resin
Superhydrophobic coatings
