Patent ID: 11942272
Assignee: SOOCHOW UNIVERSITY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 1:
2. The method according to claim 1, wherein in step (1), the aramid fiber bundles comprise polyparaphenylene terephthalamide fibers, isophthaloyl metaphenylene diamine fibers, polyparabenamide fibers, or a combination thereof; a pH value of the aqueous solution containing dopamine hydrochloride and trimethylolaminomethane hydrochloride is 8.5; and a reaction of the aramid fiber bundles and the aqueous solution containing dopamine hydrochloride and trimethylolaminomethane hydrochloride is carried out with shaking at room temperature for 5 to 48 hours; the aramid fiber bundles are taken out, washed, and dried to obtain the polydopamine-coated aramid fiber bundles; and a mass ratio of dopamine hydrochloride, trimethylolaminomethane hydrochloride and the aramid fiber bundles is (0.1 to 1):(0.05 to 0.5):(0.1 to 1).