SiO2气凝胶是一种新型纳米孔绝热材料,广泛应用于航空航天、工业、军用及民用等领域.SiO2气凝胶具有极低的热导率,这使其在绝热保温方面具有独特优势.但SiO2气凝胶本身较脆,受力易碎裂,因此研究改善其力学性能是气凝胶材料产业化应用研究的重点.采用聚合物对气凝胶改性可有效改善气凝胶的力学性能,对气凝胶的产业化应用有重要意义.%SiO2 aerogels are a new type of nanoporous insulation materials, widely used in aerospace, industrial, military, civilian and other fields. SiO2 aerogels have very low thermal conductivity, which makes SiO2 aerogels have a unique advantage in the insulation. However, the SiO2 aerogels are relatively brittle and resistant to fragmentation, so the study of improving the mechanical properties is the focus of the industrialization of aerogel materials. Using polymers to modify silica aerogels can effectively improve the mechanical properties of aerogels, which has great significance to the application of the industrialization of aerogels.
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