CAJ | 학술논문

以钛酸丁酯、正硅酸乙酯为前躯体，采用溶胶-凝胶法低温制备具有光催化活性的纳米TiO2／SiO2复合薄膜，并且考察了试验温度、pH值、涂覆层数、搅拌速度等因素对涂层亲水性能的影响。结果表明：试验温度为5℃、pH值=2．5、TiO2质量分数为50％、涂覆层数为3层、转速为1500r／min时所制得的TiO2／SiO2复合薄膜的接触角最小为6．8°。通过光催化和户外试验，表明自制的自清洁涂料具有良好的光催化效果与抗沾污性能。
이태산정지、정규산을지위전구체，채용용효-응효법저온제비구유광최화활성적납미TiO2／SiO2복합박막，병차고찰료시험온도、pH치、도복층수、교반속도등인소대도층친수성능적영향。결과표명：시험온도위5℃、pH치=2．5、TiO2질량분수위50％、도복층수위3층、전속위1500r／min시소제득적TiO2／SiO2복합박막적접촉각최소위6．8°。통과광최화화호외시험，표명자제적자청길도료구유량호적광최화효과여항첨오성능。
This paper introduces the method of sol-gel to prepare nano TiO2/SiO2 composite coating with photocatalytic activity at low temperature with tetra-n-butyl titanate and ethyl silicate as former body; analyzes the influence of temperature, PH value, layer number and stirring speed on the hydrophilicity of the coating. Result turns out to be that, under the condition of 5 ℃, pH=2.5, TiO, content of 50%, 3 layers, rotational speed of 1500 r/min, the contact angle of TiO：/SiO： composite film can reach a minimum of 6.8°. Outdoor experiment and photocatalysis indicates that our self-cleansing coatings are of excellent contamination resistance and photocatalysis effect.