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US 10,851,308 B2Granted
Method for recovering carbon fibers from composite waste
AssigneeThe Boeing Company
InventorsGang Sui, Xiaoping Yang, Xin Jin, Zhu Ming, Tianyu Wu
Life of this patent
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Abstract
A method for recovering carbon fibers from composite waste includes coating a water-soluble catalyst powder on a surface of composite waste having carbon fibers and a resin matrix and pyrolyzing the resin matrix of the coated composite waste.
Claims20
A method for recovering carbon fibers from composite waste, the method comprising:
- coating a water-soluble catalyst powder on a surface of composite waste having carbon fibers and a resin matrix;
- and
- pyrolyzing the resin matrix of the coated composite waste.
A method for recovering carbon fibers from composite waste, the method comprising:
- spraying a water-soluble catalyst powder on a surface of composite waste having carbon fibers and a resin matrix with an amount of 0.1-0.5 g/cm2;
- and
- putting the catalyst covered composite waste into a pyrolysis device and heating the catalyst covered composite waste to 250 to 450° C. for 10 to 30 minutes.
Dependencies are inferred from the claim text.