1. Aerogel Layer A Nanoporous Thermal Barrier
Aerogel insulation covering is an innovation product birthed from the unusual physics of aerogels– ultralight solids constructed from 90% air trapped in a nanoscale porous network. Imagine “frozen smoke”: the small pores are so little (nanometers large) that they stop heat-carrying air particles from moving easily, killing convection (warmth transfer using air circulation) and leaving just marginal transmission. This gives aerogel finishings a thermal conductivity of ~ 0.013 W/m · K, far less than still air (~ 0.026 W/m · K )and miles better than traditional paint (~ 0.1– 0.5 W/m · K).
(Aerogel Coating)
Making aerogel finishes starts with a sol-gel process: mix silica or polymer nanoparticles into a fluid to form a sticky colloidal suspension. Next off, supercritical drying removes the fluid without collapsing the delicate pore framework– this is essential to maintaining the “air-trapping” network. The resulting aerogel powder is mixed with binders (to adhere to surfaces) and additives (for sturdiness), then applied like paint via splashing or brushing. The final film is slim (usually
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Tags: Aerogel Coatings, Silica Aerogel Thermal Insulation Coating, thermal insulation coating
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