| Description |
Cellulose acetate butyrate (CAB) is a cellulose mixed fatty acid ester obtained from cellulose, acetic anhydride and butyric anhydride under the action of an acid catalyst. CAB is a thermoplastic resin, and the content of acetyl and butyryl groups in different products varies greatly, which has a great impact on the performance and use of the product. Cellulose acetate butyrate is an additive widely used in the coating industry. Compared with traditional cellulose acetate, it has a wider range of solubility. It not only dissolves in strong polar solvents, but also cellulose acetate butyrate with high butyryl content even Soluble in alcohol solvents. Therefore, CAB is widely used in wood coatings, plastic coatings and other coatings, and has the functions of improving coating fluidity, leveling, outdoor durability, pigment orientation and flexibility. |
