FIBER COMPOSITE MATERIAL REINFORCED AND TOUGHENED BY LONG-SHORT CARBON NANOTUBES AND PREPARATION METHOD THEREOF
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United States of America
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Jan 16, 2025
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Apr 13, 2022
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Apr 13, 2022
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Abstract
The application provides a fiber composite material reinforced and toughened by long-short carbon nanotubes and preparation method thereof, comprising: a) mixing a short carbon nanotube, a thermoset resin and an additive, to obtain resin matrix slurry; b) pouring the resin matrix slurry into a fiber preform and curing-molding, to obtain the fiber composite material reinforced and toughened by long-short carbon nanotubes; the short carbon nanotube has a length of 0.5-3 μm and an average length of ≤2 μm; and the long carbon nanotube has a length of 50-1000 μm. The present disclosure optimizes the spatial layout of long and short carbon nanotubes in the composite material, simultaneously achieving the dual purposes of the intralaminar reinforcement and the interlaminar toughening of the fiber composite material.
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