Composite graphite heat insulating material containing high-density compressed and expanded graphite particles and method for manufacturing same

摘要

Disclosed are a composite graphite heat insulating material with improved thermal conductivity in the thickness direction and a method for manufacturing the same. The composite graphite heat insulating material according to the present invention comprises: an expanded graphite matrix which is compressed in the thickness direction; and high-density compressed and expanded graphite particles which are filled in the pores within the compressed and expanded graphite matrix and have a density of 0.1 g/cm3 or more.

主权项

1. A composite graphite heat emitting material, comprising
a matrix of expanded graphite which is expanded graphite with a density of 0.0025 to 0.0125 g/cm3 compressed in the direction of thickness; and expanded and compressed high-density graphite particles charged into pores in the matrix and having a density of 1.0 to 2.2 g/cm3, wherein the graphite particles are present in an amount of 5 to 50 wt % based on the total weight of the matrix and the graphite particles, and wherein the graphite particles have a diameter of 0.01 to 0.2 μm.