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Preparation method of lightweight high-strength high-density graphite skeleton
The invention discloses a preparation method of a lightweight high-strength high-density graphite skeleton, the graphite skeleton is of a three-dimensional structure formed by a unit cell array, and a three-dimensional macroscopic porous structure, including the number and size of inner holes and a heat-conducting network structure, is regulated and controlled by changing the characteristic size of the unit cell. The preparation process of the lightweight high-strength high-density graphite skeleton mainly comprises the steps of graphite powder coating pretreatment, mesocarbon microbead oxidation pretreatment, mixed powder preparation, lightweight graphite skeleton biscuit 3D printing forming, secondary curing, rapid carbonization, repeated vacuum pressure impregnation densification, chemical vapor infiltration, graphitization and the like. The prepared graphite framework has the characteristics of light weight, high strength, high density, high heat conductivity and the like. The material can be used as a thermal management material, a composite material, an adsorption material, an electrode material and the like, has huge application potential in the aspects of electronic devices, sensors, energy, environmental protection and the like, and meets the technical field of high-thermal-conductivity application.
本发明公开了一种轻质高强高密石墨骨架的制备方法，石墨骨架由单胞阵列而成三维结构，通过改变单胞的特征尺寸调控三维宏观多孔结构，包括内孔洞数量、大小以及导热网络结构。轻质高强高密石墨骨架制备过程主要包括石墨粉末包覆预处理、中间相碳微球氧化预处理、混合粉末制备、轻质石墨骨架素坯3D打印成形、二次固化、快速碳化、多次真空压力浸渍致密化、化学气相浸渗、石墨化等，所制备的石墨骨架具有质轻、高强高密、高导热等特点。可作为热管理材料、复合材料、吸附材料、电极材料等，在电子器件、传感器、能源、环境保护等方面有着巨大的应用潜力，满足高导热应用技术领域。
Preparation method of lightweight high-strength high-density graphite skeleton
The invention discloses a preparation method of a lightweight high-strength high-density graphite skeleton, the graphite skeleton is of a three-dimensional structure formed by a unit cell array, and a three-dimensional macroscopic porous structure, including the number and size of inner holes and a heat-conducting network structure, is regulated and controlled by changing the characteristic size of the unit cell. The preparation process of the lightweight high-strength high-density graphite skeleton mainly comprises the steps of graphite powder coating pretreatment, mesocarbon microbead oxidation pretreatment, mixed powder preparation, lightweight graphite skeleton biscuit 3D printing forming, secondary curing, rapid carbonization, repeated vacuum pressure impregnation densification, chemical vapor infiltration, graphitization and the like. The prepared graphite framework has the characteristics of light weight, high strength, high density, high heat conductivity and the like. The material can be used as a thermal management material, a composite material, an adsorption material, an electrode material and the like, has huge application potential in the aspects of electronic devices, sensors, energy, environmental protection and the like, and meets the technical field of high-thermal-conductivity application.
本发明公开了一种轻质高强高密石墨骨架的制备方法，石墨骨架由单胞阵列而成三维结构，通过改变单胞的特征尺寸调控三维宏观多孔结构，包括内孔洞数量、大小以及导热网络结构。轻质高强高密石墨骨架制备过程主要包括石墨粉末包覆预处理、中间相碳微球氧化预处理、混合粉末制备、轻质石墨骨架素坯3D打印成形、二次固化、快速碳化、多次真空压力浸渍致密化、化学气相浸渗、石墨化等，所制备的石墨骨架具有质轻、高强高密、高导热等特点。可作为热管理材料、复合材料、吸附材料、电极材料等，在电子器件、传感器、能源、环境保护等方面有着巨大的应用潜力，满足高导热应用技术领域。
Preparation method of lightweight high-strength high-density graphite skeleton
一种轻质高强高密石墨骨架的制备方法
WU HAIHUA (author) / GONG LIANG (author) / ZHANG HUALONG (author) / ZENG SHIYU (author) / LI SIWEI (author) / JI YUNXIN (author)
2024-05-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
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