| abstract |
The invention discloses a preparation method of a gelatin-based sunscreen emulsion, which comprises the following steps: a. preparing nano-polydopamine; b. preparing polyvinylpyrrolidone-grafted gelatin; c. preparing nano-polydopamine and polyvinylpyrrolidone-grafted gelatin in proportion After mixing, a nano-polydopamine-containing sunscreen lotion is obtained. The application of nanometer polydopamine in sunscreen lotion is also disclosed. The invention has the advantages that: the gelatin is modified with polyvinylpyrrolidone, the nanometer polydopamine has good ultraviolet absorption performance, and the anti-ultraviolet property of the sunscreen lotion can be improved. |