保定市分散剂厂

The main chemical structures of the commonly used dispersants are as follows:

①低分子量的羧酸酰胺盐及电中性的长链羧酸多氨基盐，拥有较多吸附基，可在颜料表面形成牢固的吸附层，提高了颜料分散的稳定性，起到防止浮色发花作用；

The carboxylic acid amides with low molecular weight and the polyamino salt of the electrically neutral long chain carboxylic acid have more adsorbates, which can form a solid adsorption layer on the surface of the pigment, thus improving the stability of the pigment dispersion and preventing the floats and flowers from floating.

②高分子量羧酸酯类聚合物，通过带高分子链的基团吸附在颜料表面而形成空间位阻控制，防止颜料絮凝，保持颜料分散体系的稳定性；

(2) high molecular weight carboxylic acid esters (HMW) are adsorbed on the surface of pigment with polymer chain groups to form the space resistance control, prevent pigment flocculation and keep the stability of the pigment dispersion system.

③含锚定基团的高分子聚合物或嵌段共聚物，锚定基能牢牢固定在颜料表面，而较高分子量的溶剂化链可有效地分散在漆料中，增加吸附层的厚度，提高分散稳定性；

The anchoring group can be firmly fixed on the surface of the pigment, and the solvent chain of high molecular weight can be effectively dispersed in the paint, increasing the thickness of the adsorption layer and improving the dispersion stability.

④多价羧酸聚合物，含较多羧基，极性很强，可使涂料形成触变性流体，使颜料形成可控絮凝分散状态，对防止浮色发花很有效。

Polycarboxylic acid polymers, containing more carboxyl groups and very strong polarity, can make the coating form thixotropic fluid, and make the pigment form a controllable flocculation and dispersion state, which is very effective for preventing the floatation of floatation.