分散剂又称湿润分散剂，它除具有湿润作用外，其活性基团一端能吸附在粉碎成细小微粒的颜料表面，另一端溶剂化进入漆基形成吸附层(吸附基越多，链节越长，吸附层越厚)，产生电荷斥力(水性涂料)或熵斥力(溶剂型涂料)，使颜料粒子长期分散悬浮于漆基中，避免再次絮凝，因而保证制成的色漆体系的贮存稳定。

Also known as dispersant wetting and dispersing agent, which has the moist effect, the active groups can be adsorbed on the surface of the pigment is crushed into fine particles, the other end of the solvent into the paint form adsorption layer (adsorption medium more chain is longer, thicker adsorption layer), charge repulsion (or water paint) entropic repulsion (solvent type coating), the pigment particles suspended in the medium term dispersion paint, avoid flocculation, thus ensuring stable storage system made of paint.