As the F127 addition amount increased from 1.6 g to 2.0 g (corresponding to samples F2 to F4), the visible light transmittance of the aerogel showed a trend of first decreasing and then increasing.
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Preparation and Properties of Transparent, Thermally Insulating, and Flexible SiO<sub>2</sub> Aerogels.
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The sentences
It can be seen that from W1 to W4, the specific surface area, pore volume, and average pore diameter of the aerogels all showed an increasing trend.
The experiments demonstrated that as the proportion of DMDMS increased, the thermal conductivity of the aerogels exhibited a decreasing trend.