二氧化钛包覆水性铝颜料的制备及表征  

Preparation and performance of titanium dioxide encapsulated waterborne aluminum pigments

作　　者：马志领[1] 解飞[1] 

机构地区：[1]河北大学化学与环境科学学院,河北保定071002

出　　处：《河北大学学报（自然科学版）》2017年第1期39-46,共8页Journal of Hebei University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51302061);河北省自然科学基金资助项目(E2014201076)

摘　　要：以钛酸丁酯为原料,采用二氧化钛包覆法制备了水性铝颜料,研究了制备条件对包覆效果的影响规律,并借助X线衍射和傅里叶红外光谱对包覆机理进行了探索.扫描电子显微镜、光学显微镜、多角度分光光度和耐腐蚀性能测试表明,包覆介质的水含量及pH对WBAP性能影响很大,包覆介质水含量在12mL左右,pH为6.5左右时,钛酸丁酯的水解产物可均匀的包覆到铝粉表面,形成致密的包覆层,对铝粉起到保护作用.The titanium dioxide encapsulated waterborne aluminum pigments were prepared by using butyl titanate as precursor.X-ray diffraction（XRD）and Fourier transformation infrared results showed the coating mechanism.The results of scanning electron microscopy,optical microscopy,multi-angle spectrometric test and corrosion resistance test proved that control pH of encapsulated media at about 6.5in isopropyl alcohol/water medium,the diaspore on aluminum flakes surface can react with TiO2 platelet which came from hydrolysis of butyl titanate,to make the titanium dioxide sol-gel film formed on the aluminum flakes surface.

关 键 词：包覆铝 溶胶-凝胶法 TIO2膜 耐腐蚀性 

分 类 号：O61[理学—无机化学]