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South Korea develops new environmentally friendly, recyclable flame retardant carbon fiber composites

 Last Update: 2022-08-23
 Source: Internet
 Author: User

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Carbon Fiber Reinforced Composite (CFRP) is a composite material containing carbon fiber and epoxy resin that is four times lighter than steel but ten times stronger, and is widely used in aerospace, automotive, marine and other industries

Recently, the Korea Institute of Science and Technology (KIST) announced that a research team led by the Institute of Advanced Composites developed flame-retardant carbon fiber reinforced plastic (CFRP) using plant-derived tannins and proposed an environmentally friendly recycling method

Jung Yong-chae, principal investigator at KIST's Advanced Composites Institute, sought to improve the mechanical rigidity and flame retardancy of CFRP by using tannic acid, an eco-friendly substance

Unlike conventional epoxy resins, epoxy resins made from tannic acid are flame-retardant and require no additives

By dissolving CFRP in water in a supercritical fluid state (i.
e.
, temperature and pressure above set levels), more than 99% of CFRP can be recovered without degrading carbon fiber properties

"We have created a composite material with a wide range of applications that shows significant improvements in flame retardancy, mechanical stiffness and recyclability compared to conventional carbon fiber-reinforced plastics," said the researchers

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