Patent ID: 11905430
Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 2:
3. A lignosulfonate dispersion self-healing polyurea coating composition according to claim 2, wherein the mass ratio of the aromatic isocyanate to the aliphatic isocyanate is 10:1-3:1; the weight ratio of the aqueous lignosulfonate solution to the microcapsule healing agent used therein is 10:1-1:0.4; the mass concentration of the aqueous lignosulfonate solution is 0.5-2%; the emulsification is carried out under high-speed shearing, at a shearing speed of 6000-11000 rpm/min; the emulsification time is 30 s-3 min.