Research Progress on Modified Silica Aerogel Materials
Silica aerogel has attracted considerable attention in the aerospace,transportation and construction fields because of its light weight and excellent thermal insulation properties. However,the low solid content and loose skeleton structure result in relatively low material strength,which remains a major factor limiting its application in various fields. In addition,the long-term use temperature of silica aerogel is limited to 600～800℃,and thermal radiation heat transfer significantly affects its thermal insulation performance at higher temperatures. Combined with the research status at home and abroad,the modification methods and effects of silica aerogel materials in terms of mechanical properties and thermal properties were reviewed in order to provide a new idea for the subsequent preparation of silica aerogel composites with higher strength and good thermal insulation properties.
NETL
NSTL
万方数据
