▎ 摘　　要

NOVELTY - Double phase change heat conducting phase change interface material, comprises 2-69 pts. wt. phase change matrix, 0-30 pts. wt. non-phase change rheological auxiliary agent, 30-97 pts. wt. phase change filler, and 0.05-10 pts. wt. composite dispersing auxiliary agent in which the phase change matrix is a high molecular organic material having phase change temperature of 30-130 ℃, and the phase change filler is a low melting point alloy having phase change temperature of 47-150 ℃. USE - The double phase change heat conducting phase change interface material is useful in the technical field of thermal interface materials. ADVANTAGE - The double phase change heat conducting phase change interface material improves heat conductivity, and reduces heat resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing double phase change heat conducting phase change interface material, comprising taking phase change matrix, raising the temperature above the phase change temperature of phase change matrix, and fully melting the phase change matrix, adding composite dispersing auxiliary agent and non-phase change rheological auxiliary agent into the phase change matrix after melting, stirring and grinding to obtain mixed solution, controlling the temperature above the phase change temperature of phase change matrix, and lower than the phase change temperature of the phase change filler, adding phase change filler, and stirring to obtain mixture, calendering and forming the mixture to obtain final product.