The Effect of Adding Carbon Nitride Nanometer Material on The Properties of Epoxy Resin Project

摘要

Boron nitride(BN) nanometer material was adding as filler to epoxy resin to obtain a high thermal conductive and excellent mechanical properties material. The fillers, which include globular BN, flake BN and fibrous BN, were treated with silane coupling agent and acid to establish a strong affinity with the surrounding matrices. As a result, the thermal conductivity and mechanical properties of the composites were enhanced at a relatively appropriate volume fraction of BN. At a given volume fraction, fillers treated with silane coupling agent provide composites with lower thermal conductivity and higher tensile strength compared with the ones treated with acid. With the increase of the volume fraction of fillers, the thermal conductivity and the tensile strength of the composites show the tendency of increasing, but the tensile yield stress of composites exhibit significant reduction.