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South Korea develops environmentally friendly flame retardant carbon fiber reinforced composite materials that can be used in aerospace / automotive, etc.

 Last Update: 2022-08-24
 Source: Internet
 Author: User

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According to foreign media reports, the Korea Institute of Science and Technology (KIST) announced that a research team at the Institute of Advanced Composites led by Dr.
Yong chae Jung has developed a flame-retardant carbon fiber reinforced composite (CFRP) using made of tannins, and the team has also proposed an environmentally friendly method of recycling the material

CFRP is a composite material containing carbon fibers that is 4 times lighter than steel but 10 times stronger than steel and is widely used in the aerospace, automotive, shipbuilding and sports equipment industries

epoxy resin

Since CFRP has heat resistance, it can be made fireproof by adding halogen flame retardants

Principal researcher Jung Yong-chae of KIST's Advanced Composites Institute tried to use an environmentally friendly substance, tannin, to improve the mechanical strength and flame retardancy of CFRP

Unlike conventional epoxy resins, which are susceptible to heat, tannin-based epoxy resins are flame-retardant and require no additives, meaning toxic substances produced when CFRP is incinerated for recycling will no longer be an issue

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

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