A material is disclosed herein that may include a plurality of chambers. A wall, a bottom surface, and a top surface may define a chamber. The wall may have a top portion and a bottom portion where the top portion may be adjacent to the top surface, and the bottom portion may be adjacent to the bottom surface. The wall may include an elastic material, and an aerogel powder or an aerogel foam may be disposed within the chamber. This material can be incorporated into clothing and shoes, for example.

An aerogel structure body includes a composite layer containing fibrous materials and aerogel, the aerogel being held between the fibrous materials, and an aerogel layer having a first surface on at least one surface of the composite layer and formed of the aerogel, in which the aerogel layer having a second surface opposite to the first surface, the second surface including a projection portion projecting from the second surface, and a density of the aerogel in the projection portion is 0.1% to 3.0% higher than a density of the aerogel in the aerogel layer (flat portion) other than the projection portion. Therefore, the aerogel structure body that is excellent in dimensional stability and heat insulating properties and that can be manufactured with high productivity and a method of manufacturing the same are provided.

A molding based on a monolithic organic aerogel has a density in the range from 60 to 300 kg/m.sup.3 and a thermal conductivity in the range from 12 to 17.8 mW/m*K. The molding based on a monolithic organic aerogel has more than 30 vol.-% of pores with a diameter of less than 150 nm, and more than 20 vol.-% of pores with a diameter of less than 27 nm, based on the total pore volume. A process can be used to prepare the molding by compression.

An aerogel structure body includes a composite layer containing fibrous materials and aerogel, the aerogel being held between the fibrous materials, and an aerogel layer having a first surface on at least one surface of the composite layer and formed of the aerogel, in which the aerogel layer having a second surface opposite to the first surface, the second surface including a projection portion projecting from the second surface, and a density of the aerogel in the projection portion is 0.1% to 3.0% higher than a density of the aerogel in the aerogel layer (flat portion) other than the projection portion. Therefore, the aerogel structure body that is excellent in dimensional stability and heat insulating properties and that can be manufactured with high productivity and a method of manufacturing the same are provided.

A retrofitted window is disclosed which includes a substantially transparent aerogel film laminated on a glass windowpane, the aerogel film being embedded with randomly dispersed nanoparticles of vanadium dioxide (VO.sub.2) core and silicon dioxide (SiO.sub.2) shell, wherein the vanadium dioxide (VO.sub.2) core transitions between an insulator phase and a metal phase at a predetermined phase-transition temperature, and a volume fraction of the nanoparticles in the aerogel film is approximately between 0.001% and 0.05%.

The present disclosure can provide aerogel compositions which have a thermal storage capacity, and which are durable and easy to handle. The present disclosure can provide aerogel compositions which include PCM coatings, particle mixtures, or PCM materials confined within the porous network of an aerogel composition. The present disclosure can provide methods for producing aerogel compositions by coating an aerogel composition with PCM materials, by forming particle mixtures with PCM materials, or by confining PCM materials within the porous network of an aerogel composition.

A thermally insulating multilayer sheet includes a compressible layer, and a thermal insulation layer, a flame retardant layer, or a combination thereof disposed on the compressible layer.

The present application discloses an aerogel composite heat preservation fire-proof plate and a manufacturing process thereof. The aerogel composite heat preservation fire-proof plate comprises an upper surface layer, a fire-proof layer, a heat insulation layer, a polyurethane layer, and a lower surface layer which are compositely arranged from top to bottom in sequence. The interior of the fire-proof layer is hollow and filled with aluminum hydroxide particles. Working holes are uniformly formed in the fire-proof layer. Sealing double-screw bolts are connected in the working holes. Aerogel mounting grooves are uniformly formed in the surface, close to the fire-proof layer, of the heat insulation layer. There are heat insulation air cavities at one side, far away from the fire-proof layer, of the mounting grooves. The air cavities are communicated with all the mounting grooves. Aerogel fillers are arranged in the mounting grooves.

A heat insulation and preservation composite board includes a first panel layer and a heat insulation and preservation layer. The heat insulation and preservation layer and the first panel layer are integrally formed. The first panel layer is a fiber-reinforced resin-based composite sheet, a metal plate, a cement plate, a calcium silicate plate, or a gypsum plate. The heat insulation and preservation layer is a fiber-reinforced aerogel felt. A preparation method of the heat insulation and preservation composite board includes: (1) laying the fiber-reinforced aerogel felt flat; (2) laying the first panel layer flat on the upper surface of the fiber-reinforced aerogel felt; (3) performing a hot-press molding process to obtain the heat insulation and preservation composite board.

The invention is one or more articles, such as a headband or wristband, that include a material capable of imparting lightweight and thermally insulative characteristics to the article. Particularly, the article comprises one or more layers of aerogel material that impart an insulative characteristic so that it can comfortably be worn in summer months and winter months. In addition, the material is ultra lightweight, so that the article is not bulky and can be comfortably worn for long periods of time to reduce user fatigue. Thus, the article can be worn continuously, even during periods of rest and sleep.