Preparation method of needle type metal -silica aerogel composite particle and needle type metal-silica aerogel composite particle prepared by the same

摘要

The present invention relates to a method for producing a needle-shaped metal-silica airgel composite particle and a metal-silica airgel composite particle prepared thereby, wherein the needle-shaped metal salt particle and silica formed surrounding the surface of the needle-shaped metal salt particle salt particle It includes an airgel, which satisfies the following Equation (1), which provides a needle-shaped metal-silica airgel composite particle and a method for manufacturing the same. [Equation 1] Y=-0.874X+K In Equation 1, Y is the compressive strength (MPa), X is the needle-shaped metal-silica airgel composite particle aspect ratio, K is 45.11 to 48.11. Since the needle-shaped metal-silica airgel composite particle of the present invention can easily control the compressive strength value according to the aspect ratio, it can be applied to various polymer resins, and the compressive strength can be adjusted according to the required physical properties. .