Inorganic Chemicals Industry >
Preparation and properties of aluminum silicate fiber and glass fiber composite silica aerogel materials
Received date: 2020-04-16
Online published: 2020-11-24
The fiber composite silica aerogel materials were prepared using alumina silicate fiber or glass fiber as framework via sol-gel process and ambient pressure drying technology.The structure and properties of the produced materials were tested and analyzed.The results showed that silica aerogels were attached to the fiber surfaces which improve the mechanical properties of the materials.The sound insulation performance of alumina silicate fiber composite silica aerogel material was better than that of glass fiber composite silica aerogel material.The two kinds of fiber composite silica aerogel materials met the requirement of Level A on high thermal resistance and combustibility.The alumina silicate fiber composite silica aerogel material and glass fiber composite silica aerogel material met the requirement of Level AQ1 and Level AQ2 on smoke toxicity,respectively.And their thermal conductivities were 0.034 W/(m·K) and 0.033 W/(m·K),respectively.
Key words： silica aerogel; fiber; composite; fireproofing; heat insulation
Yi Zhang , Xinguo Ge , Guojian Lu , Changzheng Zhao . Preparation and properties of aluminum silicate fiber and glass fiber composite silica aerogel materials[J]. Inorganic Chemicals Industry, 2020 , 52(10) : 68 -71 . DOI: 10.11962/1006-4990.2019-0608
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