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超临界CO2射流空化法制备石墨烯及其在金属复合散热器上的应用研究

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  • 1鄂尔多斯应用技术学院; 2鄂尔多斯市紫荆创新研究院

网络出版日期: 2025-07-10

Study on the Preparation of Graphene by Jet Cavitation of Supercritical CO2 Method and Its Application in Metal Composite Radiator

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  • 1.Erdos College of Applied Technology, Ordos 017000, China;2.Ordos Zijin Innovation Research Institute, Ordos 017000, China

Online published: 2025-07-10

摘要

为了提高金属散热器的散热效率,利用自制超临界CO2射流空化装置制备高质量的石墨烯纳米粉,将该纳米粉制备成高散热性能的石墨烯复合涂料,并且用喷涂法制备了表面具有石墨烯复合散热涂层的金属复合散热器。结果显示:利用超临界CO2射流空化法剥离制备的石墨烯纳米粉纯度高、片层大、层数少,具有良好的导热性能,使用该石墨烯纳米粉体制备的石墨烯复合材料涂层,在室温环境下能够将原金属散热器的温度降低16.13 ℃,使金属散热器的散热效率提高15.6%~21.6%。

本文引用格式

雷达, 孟根其其格, 胡艳华, 易汉平, 孙丽雅, 邹亚丽 . 超临界CO2射流空化法制备石墨烯及其在金属复合散热器上的应用研究[J]. 材料保护, 2021 , 54(9) : 80 . DOI: 10.16577/j.cnki.42-1215/tb.2021.09.015

Abstract

In order to prepare the high-quality graphene and promote its application in the metal radiator, the heat dissipation efficiency of the metal radiator was improved.The graphene nanoparticles were prepared by a self-made jet cavitation device of supercritical CO2, which were further used to prepare the graphene composite coating with high heat dissipation, and the metal composite radiators with the graphene composite cooling coating on the surface were fabricated by spray coating method.Results showed that the graphene nanoparticles prepared by jet cavitation of supercritical CO2 had high purity, large lamellae and few layers, presenting good thermal conductivity.The graphene composite coating prepared with using the graphene nanoparticles could reduce the temperature of the original metal radiator by 16.13 ℃ and increased the heat dissipation efficiency of the metal radiators by 15.6%~21.6% at room temperature.
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