1. Aerogel Layer A Nanoporous Thermal Obstacle
Aerogel insulation finishing is a development product born from the odd physics of aerogels– ultralight solids made of 90% air trapped in a nanoscale porous network. Envision “icy smoke”: the little pores are so tiny (nanometers wide) that they quit heat-carrying air molecules from moving freely, killing convection (warm transfer via air flow) and leaving just marginal conduction. This gives aerogel finishings a thermal conductivity of ~ 0.013 W/m · K, far lower than still air (~ 0.026 W/m · K )and miles better than conventional paint (~ 0.1– 0.5 W/m · K).
(Aerogel Coating)
Making aerogel layers begins with a sol-gel process: mix silica or polymer nanoparticles into a liquid to create a sticky colloidal suspension. Next, supercritical drying eliminates the fluid without breaking down the delicate pore structure– this is essential to protecting the “air-trapping” network. The resulting aerogel powder is blended with binders (to stick to surfaces) and additives (for toughness), after that used like paint through splashing or brushing. The last film is slim (usually
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Tags: Aerogel Coatings, Silica Aerogel Thermal Insulation Coating, thermal insulation coating
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