Abstract With the rapid development of electronic technology, the demand for thermal management materials is increasing continuously. Recent years graphene paper is considered as a potential material to replace the traditional graphitized polyimide film. Although the current route to graphene paper can achieve a high thermal conductivity, the extremely high energy consumption in graphitization procedure and severe heavy metal contamination limit the application of graphene paper. Here we develop a high-efficiency, low-energy cost, and inexpensive technology to produce graphene paper in large quantities. Without graphitization, the thermal conductivity of this graphene laminated film can reach 975 W m−1 K−1 when the thickness of film is 65 μm. Based on this easy-operated technology, we have already completed the pilot plant test, attained capacity of 3 kg graphene per reactor in 8 h and 800 mm × 100 m of graphene film each roll which was continuously and macroscopically assembled on our self-made equipment.

中文翻译：

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高效低成本制备具有超高导热率的石墨烯层压薄膜

摘要 随着电子技术的飞速发展，对热管理材料的需求不断增加。近年来，石墨烯纸被认为是替代传统石墨化聚酰亚胺薄膜的潜在材料。虽然目前石墨烯纸的路线可以实现高导热率，但石墨化过程中极高的能耗和严重的重金属污染限制了石墨烯纸的应用。在这里，我们开发了一种高效、低能源成本和廉价的技术来大量生产石墨烯纸。未经石墨化处理，当薄膜厚度为 65 μm 时，这种石墨烯层压薄膜的热导率可以达到 975 W m-1 K-1。基于这种易于操作的技术，我们已经完成了中试，