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A platform for research: civil engineering, architecture and urbanism
Preparation method of bent nano carbon fiber reinforced C/C composite material
The invention discloses a preparation method of a bent nano carbon fiber reinforced C/C composite material. The preparation method comprises the following steps: ultrasonically impregnating a carbon felt in a copper tartrate solution for a period of time; taking acetylene as a carbon source and nitrogen as a protective gas, controlling the acetylene flow to be 0.2-0.5 L/min, and carrying out catalytic chemical vapor deposition under the conditions that the temperature is 270-290 DEG C and the working air pressure is 50-80kPa, so as to obtain a carbon felt containing bent nanofibers; carbonizing the carbon felt at the temperature of 950-1050 DEG C by taking nitrogen as a protective gas to obtain carbon felt containing bent nano carbon fibers; taking propylene as a carbon source and argon asa carrier gas, and carrying out CVI densification on the carbon felt containing the bent nano carbon fibers to obtain the bent nano carbon fiber reinforced C/C composite material. The preparation method of the bent nano-carbon fiber reinforced C/C composite material is simple in process and low in energy consumption, the nano-carbon fibers growing in situ are well combined with the carbon fibersin the carbon felt, the nano-carbon fibers are bent, and the reinforcing effect on the C/C composite material is good.
本发明公开了一种弯曲状纳米炭纤维增强C/C复合材料的制备方法，包括如下步骤：将炭毡在酒石酸铜溶液中超声浸渍一段时间；以乙炔为碳源、氮气为保护气体，控制乙炔流量为0.2‑0.5L/min,在270‑290℃、工作气压为50‑80kPa条件下进行催化化学气相沉积，得到含弯曲状纳米纤维的炭毡；以氮气为保护气体，在950‑1050℃条件下对炭毡进行炭化处理，得到含弯曲状纳米炭纤维的炭毡；以丙烯为碳源、氩气为载气，对含弯曲状纳米炭纤维的炭毡进行CVI增密，得到弯曲状纳米炭纤维增强C/C复合材料。本发明提供的弯曲状纳米炭纤维增强C/C复合材料的制备方法，工艺简单、能耗低，且原位生长的纳米炭纤维与炭毡中炭纤维结合良好，纳米炭纤维呈弯曲状，对C/C复合材料的增强效果好。
Preparation method of bent nano carbon fiber reinforced C/C composite material
The invention discloses a preparation method of a bent nano carbon fiber reinforced C/C composite material. The preparation method comprises the following steps: ultrasonically impregnating a carbon felt in a copper tartrate solution for a period of time; taking acetylene as a carbon source and nitrogen as a protective gas, controlling the acetylene flow to be 0.2-0.5 L/min, and carrying out catalytic chemical vapor deposition under the conditions that the temperature is 270-290 DEG C and the working air pressure is 50-80kPa, so as to obtain a carbon felt containing bent nanofibers; carbonizing the carbon felt at the temperature of 950-1050 DEG C by taking nitrogen as a protective gas to obtain carbon felt containing bent nano carbon fibers; taking propylene as a carbon source and argon asa carrier gas, and carrying out CVI densification on the carbon felt containing the bent nano carbon fibers to obtain the bent nano carbon fiber reinforced C/C composite material. The preparation method of the bent nano-carbon fiber reinforced C/C composite material is simple in process and low in energy consumption, the nano-carbon fibers growing in situ are well combined with the carbon fibersin the carbon felt, the nano-carbon fibers are bent, and the reinforcing effect on the C/C composite material is good.
本发明公开了一种弯曲状纳米炭纤维增强C/C复合材料的制备方法，包括如下步骤：将炭毡在酒石酸铜溶液中超声浸渍一段时间；以乙炔为碳源、氮气为保护气体，控制乙炔流量为0.2‑0.5L/min,在270‑290℃、工作气压为50‑80kPa条件下进行催化化学气相沉积，得到含弯曲状纳米纤维的炭毡；以氮气为保护气体，在950‑1050℃条件下对炭毡进行炭化处理，得到含弯曲状纳米炭纤维的炭毡；以丙烯为碳源、氩气为载气，对含弯曲状纳米炭纤维的炭毡进行CVI增密，得到弯曲状纳米炭纤维增强C/C复合材料。本发明提供的弯曲状纳米炭纤维增强C/C复合材料的制备方法，工艺简单、能耗低，且原位生长的纳米炭纤维与炭毡中炭纤维结合良好，纳米炭纤维呈弯曲状，对C/C复合材料的增强效果好。
Preparation method of bent nano carbon fiber reinforced C/C composite material
一种弯曲状纳米炭纤维增强C/C复合材料的制备方法
SU ZHE'AN (author) / XIAO LIJUN (author) / WANG YAFENG (author) / HUANG QIZHONG (author)
2021-03-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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