用浓度1、5、10 mol/L的KOH活化玻璃表面，通过碱催化甲基含氢硅油（PMHS）的水解和缩合反应，在玻璃表面构建出具有自洁功能的超疏水涂层。通过SEM观察发现，在浓度为10 mol/L KOH、120℃条件下改性2 h的超疏水涂层性能最佳。利用FT-IR、XPS、SEM、EDS对PMHS进行表征，结果表明，OH^-不仅能破坏玻璃的晶格使表面暴露出活性—OH位点，还能催化PMHS分子水解生成大量活性—Si—OH；2种活性基团发生化学缩合将PMHS单体接枝到玻璃表面，随后PMHS单体自交联形成微-纳纤维涂层。该方法所制超疏水界面接触角高达168°，透光率为91%，具有很强的耐酸、耐磨和自清洁性能。

A superhydrophobic coating with self-cleaning function is prepared by activating glass surface with KOH concentration of 1 mol·L^-1, 5 mol·L^-1 and 10 mol·L^-1, respectively, and through alkali catalyzed hydrolysis and condensation of polymethylhydrosiloxane (PMHS). It is found through SEM observation that the superhydrophobic coating has the best performance when the modification has been carried out under a KOH concentration of 10 mol·L^-1 at 120℃ for 2 h. The reaction mechanism of PMHS is analyzed by FT-IR, XPS, SEM, and EDS. It is shown that OH^- can destroy the crystal lattice of glass to expose active —OH sites on the surface, and can catalyze the hydrolysis of PMHS molecules to generate a large number of active —Si—OH. Chemical condensation undergoes between these two active groups to graft PMHS monomer onto glass surface, and then PMHS monomers self-polymerize to form micro-nano fiber coating. The superhydrophobic interface prepared by this method has a contact angle of 168° and a light transmittance of 91%, which has strong acid resistance, wear resistance and self-cleaning properties.

庞筱琴(1996-),女,硕士研究生,研究方向为表面材料疏水改性研究,1600461645@qq.com