基于硅烷改性沸石咪唑酯骨架的透明超疏水涂层的制备及性能研究（英文）  

Preparation of a transparent superhydrophobic coating based on silanemodified zeolitic imidazolate frameworks and study on its properties

作　　者：张曼昕 项腾飞 董春栋 杨玲[1] 蝉文明 赵颖轩 李澄[1] Man-xin Zhang;Teng-fei Xiang;Chun-dong Dong;Ling Yang;Wen-ming Chan;Ying-xuan Zhao;Cheng Li

机构地区：[1]南京航空航天大学材料科学与技术学院,江苏南京210016

出　　处：《电镀与涂饰》2018年第17期762-772,共11页Electroplating & Finishing

基　　金：funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions~~

摘　　要：以甲基三乙氧基硅烷(MTES)为前驱体,结合沸石咪唑酯骨架(ZIF-8),采用溶胶凝胶法制备了表面带甲基的SiO_2修饰ZIF-8(CH_3-SiO_2@ZIF-8)纳米粒子,经修饰剂γ-氨丙基三乙氧基硅烷(KH-550)改性后喷涂于玻璃表面,获得了超疏水涂层。微观形貌分析揭示了该涂层具有多孔结构。水滴在该涂层上的静态接触角达到(152±0.5)°,滚动角为(8±1.2)°。该涂层的可见光透过率达到90%以上。自清洁、喷水、防雾等试验的结果表明,该超疏水涂层难以被润湿,且具有良好的稳定性和防雾性。SiO2-modified zeolitic imidazolate framework-8(ZIF-8)nanoparticles with methyl groups on their surfaces(CH3-SiO2@ZIF-8)were prepared by sol–gel method with methyltriethoxysilane(MTES)as precursor.A superhydrophobic coating was obtained by sprayingγ-aminopropyltriethoxysilane(KH-550)modified core–shell CH3-SiO2@ZIF-8 particles on glass substrate.Morphological analysis revealed that the coating was of porous structure.The water contact angle(WCA)of the coating could be as large as(152±0.5)°and its sliding angle was(8±1.2)°.The visible-light transmittance of this coating reached not less than 90%as compared with the glass substrate.The results of self-cleaning,water jet,and antifogging tests showed that the superhydrophobic coating possesses excellent non-wettability,stability,and antifogging properties.

关 键 词：玻璃 沸石咪唑酯骨架 硅烷 溶胶-凝胶法 改性 超疏水涂层 水接触角 自清洁 

分 类 号：O647.5[理学—物理化学]