With the rapid development of electronic technology, the demand for thermal management materials continues to grow. In recent years, graphene paper has been considered as a potential material to replace traditional graphitized polyimide films. Although the current approach to graphene paper can achieve high thermal conductivity, the extremely high energy consumption and serious heavy metal pollution in the graphitization process limit the application of graphene paper. "
In this paper, researchers from Guangzhou University Tongshun Wu and Jilin University Luyi Zou published a paper titled "Efficient and Inexpensive Preparation of Graphene Laminated Film with Ultrahigh Thermal Conductivity" in the journal Carbon, and developed an efficient and low energy consumption. Inexpensive technology to mass-produce graphene paper. Without graphitization treatment, the thermal conductivity of the graphene laminate film can reach 975 W m-1 K-1 when the film thickness is 65μm. Based on this easy-to-operate technology, we have completed the pilot plant test. Within 8 hours, the graphene production capacity of each reactor is 3 kg, and each roll of 800 mm × 100 m graphene film is continuously and macroscopically assembled in On homemade equipment.