Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-thermal-conductivity asphalt-based carbon fiber reinforced porous carbon-carbon composite material
The invention relates to a preparation method of a high-thermal-conductivity pitch-based carbon fiber reinforced porous carbon-carbon composite material, which is characterized in that mesophase pitch-based carbonized fiber filaments/felts which are easy to weave and form are used as raw materials to prepare a low-density preform, and pitch liquid phase impregnation and pressurized foaming are adopted to prepare the lightweight porous carbon-carbon composite material. The carbon-carbon composite material with a large-size special-shaped porous structure can be formed by controlling a weaving process, the excellent heat conduction and mechanical properties of the mesophase pitch-based carbon fibers are reserved, and the porous structure of the material is also realized, so that the heat conduction and mechanical properties of the composite phase change energy storage material can be improved, and large-scale production is easy. Compared with a porous foam carbon material obtained by an existing preparation method, the heat conductivity and the compression strength of the prepared lightweight porous carbon composite material can be improved by 50% and 300% or above respectively.
本发明涉及一种高导热沥青基炭纤维增强多孔炭炭复合材料的制备方法，本发明以易于编织成型的中间相沥青基炭化纤维长丝/毡为原料制备低密度预制体，采用沥青液相浸渍及加压发泡制备轻质多孔炭炭复合材料。通过控制编织工艺可成型大尺寸异形多孔结构的炭炭复合材料，既保留了中间相沥青基炭纤维的优异导热和力学性能，也实现了材料的多孔结构，从而可提高复合相变储能材料的导热和力学性能，易于大规模生产。本发明制备的轻质多孔炭炭复合材料的热导率和压缩强度相对于现有制备方法得到的多孔泡沫炭材料分别提升可达50％和300％以上。
Preparation method of high-thermal-conductivity asphalt-based carbon fiber reinforced porous carbon-carbon composite material
The invention relates to a preparation method of a high-thermal-conductivity pitch-based carbon fiber reinforced porous carbon-carbon composite material, which is characterized in that mesophase pitch-based carbonized fiber filaments/felts which are easy to weave and form are used as raw materials to prepare a low-density preform, and pitch liquid phase impregnation and pressurized foaming are adopted to prepare the lightweight porous carbon-carbon composite material. The carbon-carbon composite material with a large-size special-shaped porous structure can be formed by controlling a weaving process, the excellent heat conduction and mechanical properties of the mesophase pitch-based carbon fibers are reserved, and the porous structure of the material is also realized, so that the heat conduction and mechanical properties of the composite phase change energy storage material can be improved, and large-scale production is easy. Compared with a porous foam carbon material obtained by an existing preparation method, the heat conductivity and the compression strength of the prepared lightweight porous carbon composite material can be improved by 50% and 300% or above respectively.
本发明涉及一种高导热沥青基炭纤维增强多孔炭炭复合材料的制备方法，本发明以易于编织成型的中间相沥青基炭化纤维长丝/毡为原料制备低密度预制体，采用沥青液相浸渍及加压发泡制备轻质多孔炭炭复合材料。通过控制编织工艺可成型大尺寸异形多孔结构的炭炭复合材料，既保留了中间相沥青基炭纤维的优异导热和力学性能，也实现了材料的多孔结构，从而可提高复合相变储能材料的导热和力学性能，易于大规模生产。本发明制备的轻质多孔炭炭复合材料的热导率和压缩强度相对于现有制备方法得到的多孔泡沫炭材料分别提升可达50％和300％以上。
Preparation method of high-thermal-conductivity asphalt-based carbon fiber reinforced porous carbon-carbon composite material
高导热沥青基炭纤维增强多孔炭炭复合材料的制备方法
LI BAOLIU (Autor:in) / YUE YIFAN (Autor:in) / MENG XINRUI (Autor:in) / LI XUANKE (Autor:in) / DONG ZHIJUN (Autor:in) / ZHU HUI (Autor:in)
20.09.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2017
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2024