| 초록 |
Expanded graphite/diglycidyl ether of bisphenol A (DGEBA) composites were prepared by melt mixing method, and the thermal properties of composites were investigated in DSC, TGA, and DTA measurements. And fracture toughness was determined by critical stress intensity factor (KIC). Also, the structure and morphology of the composites were examined by measurement of XRD and SEM, respectively. As a result, SEM observation showed that the graphites were homogeneously dispersed with the DGEBA in this system. Also, the curing temperature and thermal stability were increased in addition of expanded graphites and the maximum KIC value of the composites was found at 1 phr of expanded graphites. |
