| 초록 |
Fiber-reinforced plastics (FRPs) are an ideal choice for applications where low weight and superior performance are important, for example, as components for aircraft, automobiles, trains, windmill blade and high-quality consumer products. FRPs are produced by combining glass fiber of 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. 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. |
