| 초록 |
Rigid polyurethane foam (RPUF) was successfully prepared using recycled polyol based on glycolysis products of waste printed circuit boards (WPCBs) which are consisted of phenol and phenol derivatives. For glycolysis of WPCBs, poly (ethylene glycol) (PEG) was used as a reagent, and sodium hydroxide (NaOH) as a catalyst. The recycled polyol, obtained from alkylation of glycolysis products, could be incorporated up to 60 wt% of the polyol for successful RPUFs. The physical properties, such as cellular morphology, thermal, and mechanical properties, of RPUF were studied. It was found that the fine closed-cellular structure was obtained, and not only thermal and mechanical properties but the insulation performance of the RPUFs prepared by recycled polyol was superior to those of conventional RPUF, showing the potential applications for the insulation of building. |
