Structural and thermal study of highly porous nanocomposite SiO2-based aerogels

Influence of silica aerogel particles on the foaming process and cellular structure of rigid polyurethane foams

“…One of the most interesting thermoset polymeric foams is rigid polyurethane (RPU) foam, widely employed in the construction industry. RPU foams are one of the most popular thermal insulation materials for their low thermal conductivity (16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35) mW/(m•K)) and low density (25-50 kg/m 3 ) [8]. These materials are produced as a result of two main exothermic reactions: polymerization reaction between isocyanate and polyol; and blowing reaction between isocyanate and water.…”

A review of heat transfer models of nanoporous silica aerogel insulation material

“…人员Rhine等人 [28] 和Paik等人 [29] 含 量 均 为 100 mg/cm 3 . 哈 尔 滨 工 业 大 学 Zhang 等 人 [34,35] [18,25,36,37] 也都是选用的TiO 2 作为遮光剂.…”

Enhancement of transient thermal stability and flame retardancy of hydrophobic silica xerogel composites via carbon family material doping

“…Zeng et al theoretically suggest that heat transfer by infrared rays can be suppressed by adding carbon that absorbs infrared rays to silica aerogel [5]. To date, studies aimed at reducing radiation heat transfer and achieving low thermal conductivity by adding TiO 2 [6,7], Y 2 O 3 [8], minerals [9], carbon [10], graphene oxide (GO) [11] and graphite [12] to tetraethoxysilane (TEOS)based aerogels have been reported.…”