Overview of low thermal conductivity silica aerogel heat insulation
Aerogeli so ultralahki, highly porous materials known for their exceptional insulation properties, izjemna nizka gostota, in neverjetno razmerje med močjo in težo. Pogosto imenovan kot “zmrznjen dim” zaradi njihovega eteričnega videza, aerogels are produced by replacing the liquid component of a gel with gas, običajno s superkritičnim sušenjem, ki preprečuje propad strukture gela. Sestavljen predvsem iz zraka (do 99.98%), ti materiali kažejo široko paleto edinstvenih lastnosti, zaradi katerih so dragoceni v različnih panogah.
Features of low thermal conductivity silica aerogel heat insulation
-
Izjemno nizka gostota: Aerogeli so ene izmed najlažjih trdnih snovi na svetu, s tako nizko gostoto 0.001 gramov na kubični centimeter.
-
Vrhunska izolacija: Imajo izjemno nizko toplotno prevodnost, zaradi česar so med najboljšimi izolatorji, kar jih pozna človek, učinkovit pri temperaturah od -270°C do 1.000°C.
-
Visoka poroznost: S porozno strukturo, ki lahko sega do 99.9%, aerogeli imajo neverjetno veliko notranjo površino, izboljšanje njihove funkcionalnosti pri absorpcijskih in kataliznih aplikacijah.
-
Od prosojnega do prosojnega: Odvisno od njihove sestave, aerogeli lahko prenašajo svetlobo, jim daje edinstven polprosojen ali prozoren videz.
-
Mehanska trdnost: Kljub krhkemu videzu, aerogele je mogoče konstruirati tako, da imajo znatno mehansko trdnost, sposoben prenesti veliko težo.
-
Kemično inerten: Mnogi aerogeli so kemično stabilni in odporni proti koroziji, zaradi česar so primerni za težka okolja.
(low thermal conductivity silica aerogel heat insulation)
Parameters of low thermal conductivity silica aerogel heat insulation
Silica Aerogel is an excellent material for high-temperature applications such as electrical and mechanical systems due to its unique thermal conductivity. This makes it ideal for use in a variety of applications where heat transfer is critical, such as HVAC (heating, ventilation, and air conditioning) systems or industrial processes.
One key aspect of silica aerogel’s high thermal conductivity is the fact that it has a low coefficient of resistance (C0R). This means that when heat is transferred through a material, the coefficient of resistance decreases rapidly with temperature. This allows for efficient heat transfer across the surface of the material, which can help reduce energy waste and improve performance.
Another important feature of silica aerogel is its high thermal conductivity. When hot fluid flows over the surface of the material, it forms smaller bubbles that can conduct electricity more efficiently than larger bubbles. This property is particularly useful in areas where temperature changes rapidly, such as in outdoor HVAC systems or in chemical reactions where heat transfer must be done quickly.
Na splošno, silica aerogel provides an excellent option for high-temperature applications due to its unique thermal conductivity, low C0R properties, and high thermal conductivity. It is widely used in various fields and industries, from HVAC and IT systems to chemical reactions and processes. Its high performance and cost-effectiveness make it an attractive choice for modern technology development.
(low thermal conductivity silica aerogel heat insulation)
Applications of low thermal conductivity silica aerogel heat insulation
-
Toplotna izolacija: Uporablja se v vesolju za izolacijo vesoljskih plovil, ter v poslovnih in stanovanjskih stavbah za energetsko učinkovita okna in izolacijske materiale.
-
Sanacija okolja: Aerogeli’ zaradi velike površine so učinkoviti pri absorpciji onesnaževal, kot so razlitja nafte in težke kovine iz vode.
-
Absorpcija zvoka: Njihova porozna struktura učinkovito absorbira zvočne valove, zaradi česar so uporabni pri aplikacijah za zmanjšanje hrupa.
-
elektronika: Aerogeli’ nizka toplotna prevodnost in električne izolacijske lastnosti se uporabljajo v polprevodniški in baterijski tehnologiji.
-
Optika in fotonika: Prosojni aerogeli se uporabljajo v optičnih napravah, svetlobno vodene strukture, in kot filtri.
-
Dostava zdravil: Veliko površino je mogoče uporabiti za nadzorovano sproščanje zdravila, izdelava aerogelov, kandidatov za napredne medicinske aplikacije.
Profil podjetja
Graphne Aerogels je zaupanja vreden svetovni dobavitelj kemičnih materialov & proizvajalec z več kot 12-letnimi izkušnjami pri zagotavljanju super visokokakovostnih izdelkov iz aerogelov in grafena.
Podjetje ima strokovni tehnični oddelek in oddelek za nadzor kakovosti, dobro opremljen laboratorij, in opremljen z napredno opremo za testiranje in poprodajnim centrom za pomoč strankam.
Če iščete visokokakovosten grafen, aerogel in sorodni izdelki, vas prosimo, da nas kontaktirate ali kliknete na potrebne izdelke, da pošljete povpraševanje.
Načini plačila
L/C, T/T, Western Union, Paypal, Kreditna kartica itd.
Pošiljka
Lahko bi ga pošiljali po morju, po zraku, ali tako, da razkrijete ASAP takoj po prejemu odplačila.
FAQs of low thermal conductivity silica aerogel heat insulation
Q: Is low thermal conductivity silica aerogel heat insulation fragile?
A: Tradicionalni aerogeli so krhki in lomljivi; vendar, advancements have led to the development of “flexible” oz “rigid” aerogels that maintain their unique properties while being more durable.
Q: How is low thermal conductivity silica aerogel heat insulation made?
A: low thermal conductivity silica aerogel heat insulation is synthesized by replacing the liquid in a gel with gas without causing the structure to collapse. This is typically achieved through supercritical drying, where the solvent is converted to a supercritical state, allowing it to evaporate without forming liquid-gas interfaces that could damage the gel structure.
Q: Is low thermal conductivity silica aerogel heat insulation expensive?
A: Historically, aerogels have been costly due to their complex manufacturing process. Vendar, with technological advancements and economies of scale, costs are gradually decreasing.
Q: Can low thermal conductivity silica aerogel heat insulation conduct electricity?
A: Most aerogels are poor conductors of electricity due to their porous, insulating nature. Vendar, certain metal-oxide aerogels can display semiconducting or even conducting properties.
Q: Is low thermal conductivity silica aerogel heat insulation environmentally friendly?
A: Aerogels themselves do not pose environmental hazards, and their use in insulation can reduce energy consumption. Vendar, the production process may involve chemicals that require careful handling and disposal.
(low thermal conductivity silica aerogel heat insulation)
