Method for preparing medium- and high-modulus large tow carbon fibers
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United States of America
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Feb 4, 2025
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N/A
app pub date -
Aug 19, 2024
filing date -
Aug 19, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
A method for preparing medium- and high-modulus large tow carbon fibers includes performing in-phase microwave heating on low-modulus large tow carbon fibers, and regulating and controlling a surface current density of the carbon fibers in the range of 60-330 A/m to rapidly reach graphitization temperature of the carbon fibers, thereby completing a uniform and rapid graphitization process. The medium- and high-modulus large tow carbon fibers obtained by the preparation method of the present application can have a tensile modulus reaching 300-600 GPa, and a tensile strength maintained to be 3.5-5.0 GPa, and a dispersion of the tensile modulus of the carbon fibers is less than 1.5%.
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International Classification(s)
- 2024 Application Filing Year
- D06M Class
- 147 Applications Filed
- 5 Patents Issued To-Date
- 3.41 % Issued To-Date
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