二氧化硅材料的表面润湿性改性研究

本工作中，我们采用3-氨丙基三乙氧基硅烷(KH550)、钛酸酯偶联剂Tc-114、1H,1H,2H,2H-全氟癸基三氯硅烷(FDTS)、十八烷基三氯硅烷(OTS)对氧化硅材料进行表面改性，研究了不同改性剂及其用量对氧化硅材料表面润湿性的影响。表面润湿性采用水滴在表面的接触角(CA)来评价。通过傅里叶红外光谱仪(FT-IR)、接触角测量仪对氧化硅材料表面改性的性能进行了表征，结果表明，几种改性剂均能与氧化硅表面的羟基发生反应，成功改性得到不同表面润湿性的氧化硅材料，润湿性从亲水到疏水可控，提高了氧化硅材料应用范围.

Surface Wettability Modification of Silicon Oxide

In this work, 3-aminopropyltriethoxysilane (KH550), the coupling agent of organic titanate of Tc-114, perfluorododecyltrichlorosilane (FDTS) and octadecyltrichlorosilane (OTS) were used to modify the surface of silicon oxide to achieve different surface wettability. The effect of different modifiers and amounts on surface wettability was evaluated by measuring the water droplet contact angle (CA) on the modified surface. Chemically modified surface properties were characterized by Fourier transform infrared spectrometer (FT-IR) and contact angle (CA). Experimental results show that the four agents can react with the hydroxyl groups on the silicon oxide surface and generate a series of silicon oxide materials, showing different surface wettability.