一种碳化硅纳米铲刀接枝碳纤维、碳纤维复合材料及制备方法

By preparing carbon nanotubes as intermediates on the surface of carbon fibers, the growth direction of silicon carbide nano-shovels can be controlled to be radial, thus solving the problem of random growth direction of silicon carbide nanomaterials and significantly improving the mechanical properties of carbon fiber composites.

CN117802777BActive Publication Date: 2026-07-17NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Filing Date
2024-01-12
Publication Date
2026-07-17

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Abstract

本发明提供一种碳化硅纳米铲刀接枝碳纤维、碳纤维复合材料及制备方法，所述制备方法包括以下步骤：S1，通过化学气相沉积的方法在碳纤维布上沉积热解碳，然后生长碳纳米管，得到生长有碳纳米管的碳纤维布；S2，将生长有碳纳米管的碳纤维布在pH值为6.8～7.2的硅源溶液中浸泡，取出干燥，然后煅烧，得到碳化硅纳米铲刀接枝碳纤维；其中，所述硅源溶液包括正硅酸乙酯、乙醇和水。本发明得到的碳化硅纳米铲刀接枝碳纤维，碳化硅纳米铲刀在碳纤维表面成辐射状生长，且端部呈现铲刀状，生长有所述碳化硅纳米铲刀的碳纤维具有很好的增强作用。
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