| 초록 |
Waste carbon fiber reinforced polymer (CFRP) composites have caused economic and environmental problems. Thus, the development of an effective method for the recycling of such waste is needed. In this study, the superheated steam-induced degradation method was chosen for removal of epoxy from waste CFRP, among various degradation method such as thermal, mechanical, and solvolytic processes. The degradation products were analyzed by GC-MS. In order to more clearly understand the degradation mechanism, model epoxy materials were prepared using diglycidylether of bisphenol A and either diaminodiphenyl sulphone or diaminodiphenyl methane as an oligomer epoxy resin and a curing agent, respectively. And then they were treated with superheated steam under the same conditions as for the waste CFRP. Other simpler compounds were also prepared, and degraded under the identical conditions. The experimental results will be presented in detail along with the proposed degradation mechanism. |
