▎ 摘　　要

NOVELTY - Preparing chiral nematic nano cellulose-reduced graphene composite film involves mixing the fiber and sulfuric acid and subjecting to hydrolysis reaction to obtain nano cellulose suspension, centrifuging, dialyzing and condensing to obtain chiral nematic nano cellulose liquid crystal material. The obtained material is added to the graphene oxide aquoeus suspension liquid and mixed. The obtained product is dried and formed to obtain chiral nematic nano cellulose-reduced graphene composite film. USE - Method for preparing chiral nematic nano cellulose-reduced graphene composite film used in conductive material (claimed). ADVANTAGE - The method enables to prepare chiral nematic nano cellulose-reduced graphene composite film in simple and cost-effective manner, and has good performance and conductive optical characteristic.