Production method of high heat conduction composite plastic using multilayer graphite as filler

The invention discloses a production method of a high heat conduction composite plastic using multilayer graphite as filler, which comprises the following steps that: an open mill or a tapered double-screw extruder is heated to a preset temperature, the plastic is placed on the open mill or the tapered double-screw extruder to be stirred, the heat conduction filler is added, after the plastic andthe heat conduction filler are uniformly mixed, the mixed materials are taken out, and the compression moulding sampling or the injection moulding is carried out, so the high heat conduction composite plastic is obtained. The heat conduction filler of the invention is the squamelliform multilayer graphite which has the oversized form ratio and excellent lubricating property, high-strength mechanical property and excellent heat conductivity; compared with the graphite, the squamelliform multilayer graphite is easier to form the heat conduction network chain when the squamelliform multilayer graphite is mixed with the p