Abstract:
Aerogel composites made from organic polymer materials and inorganic fillers have excellent properties such as ultralight, heat insulation and flame retardant, which can be widely used in building energy saving and heat preservation, electronics industry, aerospace and other fields. This paper reported the preparation of organic-inorganic aerogel composite materials processes and methods, compared the advantages and disadvantages of the existing aerogel materials preparation methods, and summarizes the current research hot spots of several common aerogel composite materials, including: poly (vinyl alcohol), cellulose, alginate and pectin as organic phase, inorganic components as filler. The future development of aerogel composites is summarized: the mechanical properties and water resistance of aerogel composites need to be improved, the influence of inorganic fillers on the properties of aerogels with different matrixes should be studied, the variety of biomass degradable aerogel composites should be expanded, and the industrial application of aerogel materials needs to be realized.