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利用低温等离子体聚合的方法在超细ZrO2及SiC粉体表面聚合了聚乙烯、聚苯乙烯以及聚甲基丙烯酸甲酯等不同的聚合物层。透射电镜(TEM)、热重(TGA)及漫反射红外光谱的结果表明3nm~8nm厚的聚合物膜存在于超细陶瓷粉体的表面。经低温等离子体聚合处理过的ZrO2粉体在有机载体中的分散性显著提高。液体石蜡体系中,经低温等离子体聚合处理过的ZrO2粉体体系的粘度要远远小于未处理的ZrO2粉体体系。
Low temperature plasma polymerization was used to polymerize different polymer layers, such as polyethylene, polystyrene and polymethylmethacrylate, on the surface of ultrafine ZrO2 and SiC powders. Transmission electron microscopy (TEM), thermogravimetry (TGA) and diffuse reflectance Fourier transform infrared spectroscopy (IR) revealed that a 3nm ~ 8nm thick polymer film existed on the surface of ultrafine ceramic powder. The dispersibility of ZrO2 powder treated by low temperature plasma polymerization in organic vehicle is significantly increased. In the liquid paraffin system, the viscosity of the ZrO2 powder system treated by low temperature plasma polymerization is far less than that of the untreated ZrO2 powder system.