▎ 摘　　要

NOVELTY - The method for efficiently producing graphene oxide film, involves unwinding substrate, coating, peeling the substrate and graphene oxide film, winding the graphene oxide film and winding the substrate, where the coating process involves feeding, blade coating and drying, and performing coating at least twice. USE - Method for efficiently producing graphene oxide film for graphene thermal conductive film (claimed). ADVANTAGE - The method improves the production speed and production efficiency of the graphene oxide film, improves the utilization of graphene oxide slurry, and the multiple coatings effectively reduces the edge delamination ratio, thereby improving the utilization rate of graphene oxide slurry. The method effectively adjusts the thickness of coating film, thereby obtaining product with specified thickness, and due to the limitation of minimum coating speed greater than 0.4 m/minute for single coating, the maximum thickness after drying cannot exceed 200 mum, and after multiple coating, the thickness reaches 23 mm, which is adjusted in time according to the thickness required for production. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: 1. device for efficiently producing graphene oxide film; and 2. method for high-efficiency production of graphene oxide film. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view illustrating the method for efficiently producing graphene oxide film for graphene thermal conductive film. Unreeling roller (1) Middle conveying roller (2) Separating roller (3) Base material rolling roller (4) Graphene oxide film rolling roller (5) Scraper (6) Tunnel blast dryer (7) Graphene oxide film (9) Graphene oxide slurry (10)