▎ 摘　　要

NOVELTY - Method for preparing thermally conductive polymer composite material with multi-level continuous network structure involves preparing network C, performing load method on the network C for 2-50 times by soaking in dispersion (A) for 1-30 minutes, taking out, drying at 20-200 degrees C for 0.5-3 hours to obtain a thermally conductive filler network C, soaking the thermally conductive filler network C in solution (B) for 1-300 minutes, and drying at 20-320 degrees C for 30-300 minutes to obtain the product, where the network C is a material with a three-dimensional continuous network structure, where the dispersion (A) is prepared by dispersing thermally conductive filler in liquid (D) to obtain a mixture, and ultrasonically treating the mixture with a cell pulverizer for 5-60 minutes to obtain dispersion (A), where the concentration of the thermally conductive filler in the dispersion (A) is 0.01-5 mg/ml. USE - The method is useful for preparing thermally conductive polymer composite material (claimed). ADVANTAGE - The method uses simple and easily obtainable raw materials, has simple dipping process, uses thermally conductive filler to form a multi-level three-dimensional continuous thermally conductive network, and obtains thermally conductive polymer composite material with different thermal conductivity by controlling the number of loads. DETAILED DESCRIPTION - Method for preparing thermally conductive polymer composite material with multi-level continuous network structure involves preparing network C, performing load method on the network C for 2-50 times by soaking in dispersion (A) for 1-30 minutes, taking out, drying at 20-200 degrees C for 0.5-3 hours to obtain a thermally conductive filler network C, soaking the thermally conductive filler network C in solution (B) for 1-300 minutes, and drying at 20-320 degrees C for 30-300 minutes to obtain the product, where the network C is a material with a three-dimensional continuous network structure, where the dispersion (A) is prepared by dispersing thermally conductive filler in liquid (D) to obtain a mixture, and ultrasonically treating the mixture with a cell pulverizer for 5-60 minutes to obtain dispersion (A), where the concentration of the thermally conductive filler in the dispersion (A) is 0.01-5 mg/ml, the thermally conductive filler is a thermally conductive material with a thermal conductivity greater than 10 W/mk, the solution (B) comprises polymer aqueous solution or polymer precursor solution, the polymer comprises polyvinyl alcohol, polyethylene glycol, cellulose, polyacrylic acid or polyurethane, the content of the polymer in the polymer aqueous solution is 1-15 %mass, and the solute of the polymer precursor solution comprises polydimethylsiloxane, epoxy resin, polyamic acid or dopamine. An INDEPENDENT CLAIM is included for the thermally conductive polymer composite material obtained by the method.