| 초록 |
Liquid crystalline epoxy is a good candidate for the resin which can be used as a thermally conductive matrix. Especially, twin mesogenic epoxies are paid attention to because of its microscopic anisotroy and macroscopic isotropy, and relative flexibility enhanced by alkyl chains between two mesogens. In this research, a twin mesogenic epoxy was synthesized based on 4,4'-biphenol and it was tested for the marix resin of thermally conductive insulation sheet having bimodal aluminum nitride fillers. Synthesized epoxy was cured with a curing agent such as DDM(diaminodiphenylmethane) and SAA(sulfanilamide), and then the cured thermoset was characterized by POM and laser flash. Finally, the bimodal fillers were added to the synthesized epoxy resin with a curing agent and formed to an insulation composite laminate, and the thermal conductivity of the laminate was measured. The thermal conductivity of the cured thermoset was over 0.3W/mK and that of the composite laminate about 6W/mK. |
