Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 3, Issue 12, Pages 3332-3337Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.5b00949
Keywords
Chemical recycling; Epoxy resin; Carbon fiber; Selective C-N bond cleavage
Categories
Funding
- Scientific and technological project of Shanxi Province [20130322005-01]
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An efficient strategy is developed for chemical recycling of cured epoxy resin (CEP) from its carbon fiber reinforced polymer composites (CFREP) using AlCl3/CH3COOH as the degradation system. Acetic acid swells the dense structures of CEP, facilitating the penetration of the aluminum ion catalyst into the polymer matrix. The weakly coordinating aluminum ions in CH3COOH solution selectively cleave the C-N bond while leaving the C-C, C-O (aryl alkyl ether) bonds intact. This process recovers valuable oligomers and carbon fibers from CFREP.
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