Aerogel composite

An aerogel composite comprising:

• a substrate including a plurality of discrete fibers and voids between the fibers;
• and
• silica aerogel including a plurality of aerogel particles positioned on the fiber and in the voids between the fibers, and having a network structure including one or more pores,
• wherein the volume ratio of the aerogel including pores and the voids per unit volume of the aerogel composite is 88% to 98%,
• wherein a total volume ratio of the fibers per unit volume of the aerogel composite is from 2% to 12%,
• wherein when a pressure of 150 N/cm2 is applied in a thickness direction with respect to the aerogel composite, a volume ratio of aerogel including pores and voids between discrete fibers per unit volume of the aerogel composite is 0.85 times to 1 time compared to before the pressure was applied,
• wherein when a pressure of 300 N/cm2 is applied in a thickness direction with respect to the aerogel composite, the volume ratio of the aerogel including pores and the voids per unit volume of the aerogel composite is 0.80 times to 1 time compared to before the pressure was applied,
• wherein when a pressure of 150 N/cm2 is applied to a cross-section of the aerogel composite, the heat transmission coefficient after the compression is greater than 1 time and less than or equal to 1.5 times the heat transmission coefficient before the compression,
• wherein when a pressure of 300 N/cm2 is applied to a cross-section of the aerogel composite, the heat transmission coefficient after the compression is greater than 1 time and less than or equal to 1.8 times the heat transmission coefficient before the compression.