Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-thermal-conductivity and high-thickness graphene composite film and preparation method thereof
The invention provides a high-thermal-conductivity and high-thickness graphene composite film and a preparation method thereof. The thickness of the graphene composite film is 1-2 mm, the thermal conductivity in the horizontal direction is 1500-1800 W/m.K, and the thermal conductivity in the vertical direction is 100-200 W/m.K; the graphene composite film is obtained by mixing, coating, drying and sintering raw materials containing graphene oxide slurry, carbon fibers, carbon nanotubes and an adhesive dispersant, the mass percentage of the carbon fibers is 4-7%, the mass percentage of the carbon nanotubes is 5-10%, the mass percentage of the adhesive dispersant is 5-10%, and the mass percentage of the graphene oxide slurry is 5-10%. Based on the mass of the graphene oxide slurry. According to the graphene composite film, graphene oxide serves as a base material, carbon fibers with a certain length and a certain diameter and carbon nanotubes are added to create a heat conduction channel in the vertical direction, and the defect that the thickness and the axial heat conduction performance of an existing graphene film are difficult to consider at the same time is overcome through synergistic combination of the three raw materials.
本发明提供一种高导热高厚度的石墨烯复合膜及其制备方法，所述石墨烯复合膜的厚度为1‑2mm，水平方向热导率为1500‑1800W/m·K，垂直方向热导率为100‑200W/m·K；所述石墨烯复合膜为通过将包含氧化石墨烯浆料、碳纤维、碳纳米管和胶黏分散剂的原料经过混合、涂布、烘干、烧结得到，所述碳纤维的质量百分比为4‑7％、所述碳纳米管的质量百分比为5‑10％，所述胶黏分散剂的质量百分比为5‑10％，基于所述氧化石墨烯浆料的质量计。所述石墨烯复合膜以氧化石墨烯作为基材，添加一定长度、一定直径的碳纤维以及碳纳米管创造垂直方向的导热通道，三种原料的协同组合解决了目前石墨烯膜厚度和轴向导热性能难以兼顾的缺陷。
High-thermal-conductivity and high-thickness graphene composite film and preparation method thereof
The invention provides a high-thermal-conductivity and high-thickness graphene composite film and a preparation method thereof. The thickness of the graphene composite film is 1-2 mm, the thermal conductivity in the horizontal direction is 1500-1800 W/m.K, and the thermal conductivity in the vertical direction is 100-200 W/m.K; the graphene composite film is obtained by mixing, coating, drying and sintering raw materials containing graphene oxide slurry, carbon fibers, carbon nanotubes and an adhesive dispersant, the mass percentage of the carbon fibers is 4-7%, the mass percentage of the carbon nanotubes is 5-10%, the mass percentage of the adhesive dispersant is 5-10%, and the mass percentage of the graphene oxide slurry is 5-10%. Based on the mass of the graphene oxide slurry. According to the graphene composite film, graphene oxide serves as a base material, carbon fibers with a certain length and a certain diameter and carbon nanotubes are added to create a heat conduction channel in the vertical direction, and the defect that the thickness and the axial heat conduction performance of an existing graphene film are difficult to consider at the same time is overcome through synergistic combination of the three raw materials.
本发明提供一种高导热高厚度的石墨烯复合膜及其制备方法，所述石墨烯复合膜的厚度为1‑2mm，水平方向热导率为1500‑1800W/m·K，垂直方向热导率为100‑200W/m·K；所述石墨烯复合膜为通过将包含氧化石墨烯浆料、碳纤维、碳纳米管和胶黏分散剂的原料经过混合、涂布、烘干、烧结得到，所述碳纤维的质量百分比为4‑7％、所述碳纳米管的质量百分比为5‑10％，所述胶黏分散剂的质量百分比为5‑10％，基于所述氧化石墨烯浆料的质量计。所述石墨烯复合膜以氧化石墨烯作为基材，添加一定长度、一定直径的碳纤维以及碳纳米管创造垂直方向的导热通道，三种原料的协同组合解决了目前石墨烯膜厚度和轴向导热性能难以兼顾的缺陷。
High-thermal-conductivity and high-thickness graphene composite film and preparation method thereof
一种高导热高厚度的石墨烯复合膜及其制备方法
TIAN SUYUN (Autor:in) / SHEN FUQIANG (Autor:in)
27.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
High-thermal-conductivity graphene composite film and preparation method thereof
| Europäisches Patentamt | 2023
High-thermal-conductivity graphene composite heat dissipation film and preparation method thereof
| Europäisches Patentamt | 2021
High-thermal-conductivity polyimide composite graphite film and preparation method thereof
| Europäisches Patentamt | 2024
Preparation method of high-conductivity graphene film
| Europäisches Patentamt | 2021
High-thermal-conductivity carbon film and preparation method thereof
| Europäisches Patentamt | 2023