申请人:SABIC GLOBAL TECHNOLOGIES B.V.
公开号:US20200143988A1
公开(公告)日:2020-05-07
A filler composition includes fully or partially oxidized graphene or boron nitride nano sheets and a thermal setting polymer matrix. The fully or partially oxidized graphene or boron nitride nano sheets are embedded within the polymer matrix, and the filler composition: (i) has a thermal conductivity greater than or equal to 3 W/mK; (ii) has an electric breakdown voltage greater than or equal to 10 kV/mm; (iii) is pourable; and (iv) is located between an electromagnetic wire of an electromagnetic coil. The filler composition can also include the nano sheets bound to the surfaces of a plurality of co-particles that can increase the thermal conductivity through the filler. The polymer matrix can be a polyester imide, a polyamide-imide, polysulfones, a polyimide, a polyether ketone, or combinations thereof.