【摘要】 <正> 一、前言涂料通常是以固体的颜料、填料粉末分散于高分子溶液中的高分散体系。颜料表面化学的研究指出,颜料在涂料中的分散,包含了颜料颗粒的表面润湿、颜料聚集体的碎裂和颜料分散粒子的稳定化三个过程。因此,颜料的表面性质,决定了其在涂料中的存在形式。涂料中使用的颜料,往往由于其表面性质与漆料的性质相差甚大,难以达到表面润湿的目的,因此难于很好地分散在涂料中。更多还原

【Abstract】 From oxide red was treated withthirteen different types of surfactant,various influences of the pigmentsuriace treatments upon rheologybehayior of solvent borne acrylic paintpigmented here with were obviouslyfound. Investigations of such influences were made. Paints pigmented withanionic and cationic surfactants treated iron oxide red show pseudoplasticity and high yield value and increasing viscosity during storage,on thecontrary, with nonionic surface treatment, show behavior similar toNewton flow characterised by lowyield value and storage stability. Themechanism of the rheology behaviorsand dispersibility of the treated ironoxid red are discussed.更多还原