硅烷化SiO_(2)涂层的制备及其性能研究  

Preparation and properties of silylated SiO_(2) coating

作　　者：韩洪兴 赵磊 韩春 史纪村 崔朋勃 朱向辉 HAN Hongxing;ZHAO Lei;HAN Chun;SHI Jicun;CUI Pengbo;ZHU Xianghui(School of Civil Engineering and Architecture, Xinxiang University, Xinxiang 453003, China;Hennan Provincial Academy of Building Research, Zhengzhou 450053, China)

机构地区：[1]新乡学院土木工程与建筑学院,河南新乡453003 [2]河南省建筑科学研究院有限公司,郑州450053

出　　处：《功能材料》2022年第1期1185-1189,共5页Journal of Functional Materials

基　　金：新乡学院博士科研启动金项目(1366020159);河南省重点研发与推广专项项目(192102310483);河南省科技攻关项目(212102310038)。

摘　　要：采用KH-570偶联剂接枝改性SiO_(2)颗粒表面,通过调节KH-570偶联剂的接枝密度定量控制硅烷化SiO_(2)颗粒界面上的接触角,接着利用界面自组装方法制备可控层的硅烷化SiO_(2)涂层。结果表明,硅烷化SiO_(2)颗粒界面上的接触角随着KH-570偶联剂接枝密度的增加呈先增加后下降趋势,KH-570偶联剂为1.5 mL、pH值=10时,接触角最大,约为147°;硅烷化SiO_(2)涂层为3层时,整个衬底被硅烷化SiO_(2)涂层完全覆盖,接触角达到156°,属于超疏水涂层。The surface of SiO_(2) particles is grafted with KH-570 coupling agent.The contact angle at the interface of silylated SiO_(2) particles is quantitatively controlled by adjusting the grafting density of KH-570 coupling agent.The silylated SiO_(2) coating with controllable layer is prepared by interface self-assembly method.The results show that the contact angle at the interface of silylated SiO_(2) particles increases first and then decreases with the increase of grafting density of KH-570 coupling agent.When KH-570 coupling agent is 1.5 mL and pH=10,the contact angle is the largest,about 147°.When the silylated SiO_(2) coating is 3 layers,the whole substrate is completely covered by the silylated SiO_(2) coating,and the contact angle reaches 156°.It is a super hydrophobic coating.

关 键 词：SiO_(2)颗粒 KH-570偶联剂 硅烷化 涂层 接触角 

分 类 号：TB332[一般工业技术—材料科学与工程]