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Method for preparing high-density and high-strength carbon material based on waste carbon-carbon composite material
The invention discloses a method for preparing a high-density and high-strength carbon material based on a waste carbon-carbon composite material, which comprises the following steps: 1) taking the waste carbon-carbon composite material as a raw material, and mechanically crushing; (2) carrying out high-energy ball milling on the crushed carbon-carbon waste to obtain a fine material of carbon fiber and pyrolytic carbon interface dissociation; 3) coating the waste carbon fine material with a phenolic resin alcohol solution; and 4) fully mixing the mesocarbon microbeads with the resin-coated carbon-carbon waste, and performing cold compression molding and carbonization treatment to obtain the high-density and high-strength carbon material. According to the invention, the problem of tight interface combination of the carbon fiber and the pyrolytic carbon is solved, and nearly 100% recovery of the waste carbon-carbon composite material is realized. The prepared carbon material has the advantages of high density, high strength, low production cost, short preparation period and low requirements on process operation and equipment.
本发明公开了一种基于废弃碳碳复合材料制备高密度高强度碳材料的方法，包括如下步骤：1)以废弃碳碳复合材料为原料，机械破碎；2)破碎后的碳碳废料经高能球磨后获得碳纤维与热解碳界面解离的细料；3)用酚醛树脂酒精溶液对废碳碳细料进行包覆；4)将中间相炭微球与树脂包覆后的碳碳废料充分混合后，经冷模压成型、碳化处理制得高密度高强度碳材料。本发明解决了碳纤维与热解碳界面结合紧密的问题，实现了废弃碳碳复合材料近100％回收。本发明制得的碳材料具有高密度高强度，生产成本低、制备周期短、对工艺操作和设备要求低。
Method for preparing high-density and high-strength carbon material based on waste carbon-carbon composite material
The invention discloses a method for preparing a high-density and high-strength carbon material based on a waste carbon-carbon composite material, which comprises the following steps: 1) taking the waste carbon-carbon composite material as a raw material, and mechanically crushing; (2) carrying out high-energy ball milling on the crushed carbon-carbon waste to obtain a fine material of carbon fiber and pyrolytic carbon interface dissociation; 3) coating the waste carbon fine material with a phenolic resin alcohol solution; and 4) fully mixing the mesocarbon microbeads with the resin-coated carbon-carbon waste, and performing cold compression molding and carbonization treatment to obtain the high-density and high-strength carbon material. According to the invention, the problem of tight interface combination of the carbon fiber and the pyrolytic carbon is solved, and nearly 100% recovery of the waste carbon-carbon composite material is realized. The prepared carbon material has the advantages of high density, high strength, low production cost, short preparation period and low requirements on process operation and equipment.
本发明公开了一种基于废弃碳碳复合材料制备高密度高强度碳材料的方法，包括如下步骤：1)以废弃碳碳复合材料为原料，机械破碎；2)破碎后的碳碳废料经高能球磨后获得碳纤维与热解碳界面解离的细料；3)用酚醛树脂酒精溶液对废碳碳细料进行包覆；4)将中间相炭微球与树脂包覆后的碳碳废料充分混合后，经冷模压成型、碳化处理制得高密度高强度碳材料。本发明解决了碳纤维与热解碳界面结合紧密的问题，实现了废弃碳碳复合材料近100％回收。本发明制得的碳材料具有高密度高强度，生产成本低、制备周期短、对工艺操作和设备要求低。
Method for preparing high-density and high-strength carbon material based on waste carbon-carbon composite material
一种基于废弃碳碳复合材料制备高密度高强度碳材料的方法
ZHANG MINGYU (author) / LIN XIANGBAO (author) / SU ZHEAN (author) / HUANG QIZHONG (author)
2023-11-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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