| 초록 |
Fiber-reinforced plastics (FRPs) are produced by combining glass fiber or carbon fibers with a matrix such as an epoxy (EP) resin. The hardened EP resin forms a three-dimensional cross-linked network structure. Interestingly, this cross-linking between the polymer chains also makes the EP resin infusible and insoluble. These properties of the EP resin make it difficult to recycle them. It is becoming a substantial problem owing to the environmental pollution caused by the FRP waste and the reuse of expensive CF resources. Recently, we succeeded in dissolving the epoxy resin within 2 h at atmospheric pressure and a reaction temperature of 100 °C are optimal conditions for the depolymerization; this was achieved by using an aqueous solution, which made it possible to recycle these FRPs. In this presentation, I will introduce recycling of CFRP products and recycling of GFRP windmill blades by applying epoxy resin decomposition technology. |
