1. Aerogel Layer A Nanoporous Thermal Obstacle
Aerogel insulation layer is a development product birthed from the unusual physics of aerogels– ultralight solids made of 90% air trapped in a nanoscale porous network. Visualize “frozen smoke”: the little pores are so little (nanometers large) that they stop heat-carrying air molecules from moving easily, eliminating convection (warm transfer via air circulation) and leaving only marginal conduction. This gives aerogel coverings a thermal conductivity of ~ 0.013 W/m · K, much less than still air (~ 0.026 W/m · K )and miles much better than standard paint (~ 0.1– 0.5 W/m · K).
(Aerogel Coating)
Making aerogel finishings starts with a sol-gel process: mix silica or polymer nanoparticles into a liquid to create a sticky colloidal suspension. Next, supercritical drying out eliminates the fluid without breaking down the fragile pore framework– this is vital to preserving the “air-trapping” network. The resulting aerogel powder is mixed with binders (to stick to surface areas) and additives (for durability), then applied like paint through spraying or brushing. The final film is slim (commonly
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Tags: Aerogel Coatings, Silica Aerogel Thermal Insulation Coating, thermal insulation coating
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