[Retracted] Study on Preparation of Elastic Silica Aerogel Based on SEM Analysis

Table 3

Analysis of coupling degree of preparation of elastic silica aerogel by different methods (%).

Grouping	Coupling degree
	Before use	After use
Traditional method	72.42	78.36
SEM analysis	84.28	95.64
	7.428	7.126
	0.042	0.038