7Kistler S S. Coherent expanded aerogels and jellies [J]. Nature, 1931 (127):741.
8Peri J B.Infrared study of OH and NH2 groups on the surface of a dry silica aerogel [J].The Journal of Physical Chemistry,1966,70 (9): 2937-2945.
9Tewari P H, Hunt A J, Loftlus K D.Ambient-temperature supercritical drying of tansparent silica aerogels [J]. Materials Letters, 1985, 3(9-10): 363-367.
10Wu H J, Fan J, Du N.Thermal energy transport within porous polymer materials:Effects of fiber characteristics [J].Journal of Applied Polymer Science, 2007,106(1 ):576-583.