| 초록 |
Epoxidized linseed oil (ELO) was synthesized to improve the biodegradability and fracture toughness of the diglycidyl ether of bisphenol-A (DGEBA). DGEBA was blended with ELO contents from 10 to 40 wt% to obtain a modified network. DGEBA and the DGEBA/ELO blends were characterized by their biodegradability, thermal properties, and fracture toughness. The fracture toughness of the DGEBA/ELO blends was studied by measuring the Izod impact strength and the critical stress intensity factor (KIC). The morphologies were observed by scanning electron microscopy (SEM). In the biodegradability results, the DGEBA/ELO blends degraded 5% of the initial weight. The thermal property results confirmed that the crosslinking density of the epoxy networks decreased. The impact strength of the DGEBA/ELO blends was significantly improved with the addition of ELO owing to the reduced cross-linking density of the epoxy network. |
