Hydrophobic association type anionic polyacrylamide as well as preparation method and application thereof

• Main Authors: LIANG ZHIMIN, LIU ZHIRUI, TAN LILIN, MO SHIGUANG, GAO JUAN, ZENG LIANGDAN
• Format: Patent
• Language: Chinese; English
• Published: 14.03.2023
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention discloses novel hydrophobic association type anionic polyacrylamide and a preparation method and application thereof, the hydrophobic association type anionic polyacrylamide is introduced into a hydrophilic block, the polarity is high, the water solubility is good, and therefore the hydrophobic association type anionic polyacrylamide can provide a good foundation for water serving as a dispersion medium in water-based ink; due to the electrostatic repulsive force of the sulfonic acid group, the obtained polyacrylamide is not in a curled state, the molecular chain of the polymer is more stretched, and the hydrophobic association effect is enhanced. Meanwhile, a rigid hydrophobic block is introduced, so that the stability of polyacrylamide can be effectively improved, high apparent viscosity is kept under high temperature and high shear, side effects on an ink system are avoided, and when the polyacrylamide is used as a thickener of water-based ink, the advantages of polyurethane and polyacrylic a