▎ 摘 要
NOVELTY - Composite comprises a polymeric matrix material formed from boron nitride and/or a polymer that defines an open pore foam structure, where the open pore foam structure has cavities completely lined with boron nitride, and the polymeric matrix material has the open pore foam structure having cavities lined with boron nitride is a thermal conductor and an electrical insulator. USE - The composite is useful for fabricating pristine, graphene/graphite/polymer composite foams. ADVANTAGE - The composite utilizes the polymeric matrix material that has a bulk conductivity of 2 S/m, a compressive modulus of 100 MPa, and a breaking strength of at least 1200 psi , and a density of 0.25 g/cm3.