| abstract |
The invention relates to the technical field of cellulose materials, and discloses a hydrophobic cellulose-chitosan high-barrier composite film, comprising the following formulation raw materials and components: chitosan-grafted graphene, hydrophobic nanocellulose, oxidized cellulose. In the hydrophobic cellulose-chitosan high-barrier composite film, the acid chloride group of the acyl chloride graphene reacts with the amino group of the chitosan to obtain the chitosan-grafted graphene, and then reacts with the aldehyde group of the oxidized cellulose. The Schiff base condensation reaction is carried out to organically combine the graphene particles with cellulose, which improves the compatibility between graphene nanoparticles and cellulose. The graphene nanoparticles are uniformly dispersed in the gaps of the cellulose film, forming a continuous and dense barrier. The long-chain alkylated hydrophobic nanocellulose improves the contact angle between the cellulose film and water molecules, and enhances the hydrophobic properties of the film material. |