Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Carbon-carbon composite material as well as preparation method and application thereof
The invention belongs to the technical field of carbon materials, and particularly relates to a carbon-carbon composite material and a preparation method and application thereof. The preparation method comprises the following steps: repeatedly performing chemical vapor deposition carbon densification on a carbon fiber preform, and performing graphitization heat treatment on an obtained densified carbon-carbon material blank in a protective atmosphere to obtain a graphitized carbon-carbon material; the graphitized carbon-carbon material is subjected to finish machining, the obtained graphitized carbon-carbon material subjected to finish machining is circularly purified under purification gas and shielding gas, and a purified carbon-carbon material is obtained; and carrying out heat treatment on the purified carbon-carbon material to obtain the carbon-carbon composite material. The carbon-carbon composite material with high density and high air permeability is prepared through a chemical vapor deposition process and a purification process, the air permeable ring prepared from the carbon-carbon composite material better meets the use requirements of a photovoltaic thermal field, meanwhile, the thermal field mechanical property is higher, the service life is longer, the energy consumption is lower, the production cost of an enterprise can be reduced, and the economic benefit is increased. And the ever-increasing requirements of photovoltaic thermal field accessories are met.
本发明属于碳材料技术领域，具体涉及一种碳碳复合材料及其制备方法和应用。本发明将碳纤维预制体重复进行化学气相沉积碳增密，所得增密碳碳材料坯体在保护气氛下进行石墨化热处理，得到石墨化碳碳材料；将所述石墨化碳碳材料进行精加工，所得精加工后石墨化碳碳材料在提纯气体和保护气下循环进行纯化处理，得到纯化碳碳材料；将所述纯化碳碳材料进行热处理，得到碳碳复合材料。本发明通过化学气相沉积工艺和纯化工艺，制备得到高密度、高透气性的碳碳复合材料，用其制备的透气环更符合光伏热场的使用要求，同时其热场力学性能更高，使用寿命更长，能耗更低，可降低企业生产成本，满足日益增长的光伏热场配件需求。
Carbon-carbon composite material as well as preparation method and application thereof
The invention belongs to the technical field of carbon materials, and particularly relates to a carbon-carbon composite material and a preparation method and application thereof. The preparation method comprises the following steps: repeatedly performing chemical vapor deposition carbon densification on a carbon fiber preform, and performing graphitization heat treatment on an obtained densified carbon-carbon material blank in a protective atmosphere to obtain a graphitized carbon-carbon material; the graphitized carbon-carbon material is subjected to finish machining, the obtained graphitized carbon-carbon material subjected to finish machining is circularly purified under purification gas and shielding gas, and a purified carbon-carbon material is obtained; and carrying out heat treatment on the purified carbon-carbon material to obtain the carbon-carbon composite material. The carbon-carbon composite material with high density and high air permeability is prepared through a chemical vapor deposition process and a purification process, the air permeable ring prepared from the carbon-carbon composite material better meets the use requirements of a photovoltaic thermal field, meanwhile, the thermal field mechanical property is higher, the service life is longer, the energy consumption is lower, the production cost of an enterprise can be reduced, and the economic benefit is increased. And the ever-increasing requirements of photovoltaic thermal field accessories are met.
本发明属于碳材料技术领域，具体涉及一种碳碳复合材料及其制备方法和应用。本发明将碳纤维预制体重复进行化学气相沉积碳增密，所得增密碳碳材料坯体在保护气氛下进行石墨化热处理，得到石墨化碳碳材料；将所述石墨化碳碳材料进行精加工，所得精加工后石墨化碳碳材料在提纯气体和保护气下循环进行纯化处理，得到纯化碳碳材料；将所述纯化碳碳材料进行热处理，得到碳碳复合材料。本发明通过化学气相沉积工艺和纯化工艺，制备得到高密度、高透气性的碳碳复合材料，用其制备的透气环更符合光伏热场的使用要求，同时其热场力学性能更高，使用寿命更长，能耗更低，可降低企业生产成本，满足日益增长的光伏热场配件需求。
Carbon-carbon composite material as well as preparation method and application thereof
一种碳碳复合材料及其制备方法和应用
JIANG JIE (Autor:in) / JIA LINTAO (Autor:in) / WEI QINGZHEN (Autor:in) / IKEZAWA SATOSHI (Autor:in)
12.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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