粉煤灰改性及其疏水薄膜研究  

Study on surface modification of flyash and its hydrophobic hybrid film

作　　者：万祥龙[1] 张海军[2] 叶漫[1] 李岩[1] 郝国防[3] 

机构地区：[1]安徽理工大学材料科学与工程学院,淮南232001 [2]西南科技大学理学院,绵阳621000 [3]中国科学院过程工程研究所,北京100190

出　　处：《化工新型材料》2013年第11期171-173,共3页New Chemical Materials

基　　金：安徽理工大学博士启动基金项目(11021)

摘　　要：聚丙烯酸酯乳液对固体废弃物粉煤灰的改性及其功能性薄膜的疏水性研究是对粉煤灰的综合利用的一种新的尝试。添加不同比例的聚丙烯酸酯乳液制得聚丙烯酸酯/粉煤灰薄膜,测定其表面接触角,使用金相显微镜观察薄膜表面形貌,并分析薄膜的表面润湿性与颜料体积浓度的关系,讨论了可能的机理。结果表明,当颜料体积浓度与临界颜料体积浓度接近时,薄膜有最大的接触角,表现为极好的疏水性。The study of modification of flyash by polyacrylate emulsion and the hydrophobicity of polyacrylate-fly- ash hybrid film was a new way of the utilization of flyash. The hybrid film is made from mixed coating with different ratios of polyacrylate emulsion and flyash. The surface of this film was studied used a contact angle meter and a metalloscope. The mechanism of the wettability of hybrid film was discussed on different pigment volume concentrations （PVC） in films. The result showed that the hybrid film had a excellent hydrophobic surface with a maxium contact angle when the PVC was a- round CPVC.

关 键 词：粉煤灰表面改性 颜料体积浓度 接触角 疏水薄膜 

分 类 号：X773[环境科学与工程—环境工程]