Preparation of curcumin stabilized pigment coated by zeolitic imidazolate framework material ZIF-8

In order to solve the problems of instability, easy hydrolysis and low dyeing efficiency of curcumin during storage and dyeing, the zeolite imidazolate framework material ZIF-8 was used as a carrier to coat curcumin by physical method to prepare stable pigment. The ZIF-8 material and pigment were characterized by using instrumental analysis. The results showed that the synthesized ZIF-8 material had a very good structure and a large specific surface area, and the pigment stability was significantly improved. The coating experiment showed that when the amount of ZIF-8 was 200 mg, the time was 10 h, and the concentration of curcumin solution was 1.0 g/L, the maximum coating ratio was 91%.