Preparation methods of high modulus carbon fiber (HMCF) and precursor (mesophase pitch (MP)) thereof

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United States of America Patent

PATENT NO 11149361
SERIAL NO

17315390

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Preparation methods of a high modulus carbon fiber (HMCF) and a precursor (mesophase pitch (MP)) thereof are provided. The preparation method of MP includes: separating components with a molecular weight distribution (MWD) of 400 to 1,000 from a heavy oil raw material through size-exclusion chromatography (SEC); subjecting the components to ion-exchange chromatography (IEC) to obtain modified feedstock oil, where, the components are passed through macroporous cation-exchange and anion-exchange resins in sequence to remove acidic and alkaline components; and subjecting the modified feedstock oil to thermal polycondensation and carbonization to obtain high-quality MP with prominent spinnability. With high mesophase content, low softening point, low viscosity, and prominent meltability and spinnability, the obtained MP is a high-quality raw material for preparing HMCFs. The obtained MP can be subjected to melt spinning, pre-oxidation, carbonization, and graphitization to obtain an MP-based HMCF.

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Patent Owner(s)

Patent OwnerAddress
CHINA UNIVERSITY OF PETROLEUM266580 QINGDAO ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE CHANGJIANG ROAD NO 66 SHANDONG QING DAOSHI SHAN DONGSHENG 266580

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cao, Yonggang Qingdao, CN 7 0
Chai, Luning Qingdao, CN 2 0
Chen, Zhaojun Qingdao, CN 2 0
Du, Hui Qingdao, CN 213 3515
Fu, Yu'e Qingdao, CN 1 0
Gong, Xin Qingdao, CN 16 48
Jiao, Chong Qingdao, CN 3 2
Li, Jun Qingdao, CN 1363 17735
Li, Zhihao Qingdao, CN 35 139
Liu, Dong Qingdao, CN 274 3127
Lou, Bin Qingdao, CN 40 226
Ma, Zhiqing Qingdao, CN 1 0
Shi, Nan Qingdao, CN 28 125
Wen, Fushan Qingdao, CN 2 0
Yang, Xiujie Qingdao, CN 2 0
Yin, Changlong Qingdao, CN 2 0
Yu, Enqiang Qingdao, CN 1 0
Yuan, Huizhi Qingdao, CN 3 1
Zhang, Jianguo Qingdao, CN 44 208
Zhang, Zhichen Qingdao, CN 5 33

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