1. Fa'asaienisi taua ma le Nanoarchitectural Design of Airgel Coatings
1.1 Le Afuaga ma le Faʻamatalaina o Aerogel-Faʻavae Faʻapipiʻi
(Fa'aluega Airgel)
Ufiufi Airgel o lo'o fa'atusalia ai le suiga o oloa fa'atino e maua mai i le aiga lautele o aerogels– ultra-porous, u'amea maualalo e ta'uta'ua mo lo latou fa'amama mata'ina, nofoaga maualuga, ma nanoscale fausaga fausaga malosiaga.
E le pei o aerogels monolithic masani, lea e masani ona vaivai ma faigata ona tuʻufaʻatasia i geometries lavelave, e fa'aogaina fa'alava o le ea e pei o ata manifinifi po'o fa'alava i luga o substratums e pei o u'amea, polymers, ie, po'o oloa faufale.
O vaega nei o lo'o fa'atumauina uiga autu o le tele o aerogels– aemaise lava o latou porosity nanoscale ma faaitiitia le conductivity vevela– a'o tu'uina atu le malosi fa'ainisinia fa'aleleia, agava'a, ma le faigofie o le faʻaogaina ma taʻiala e pei o le faʻafefe, fa'afufuifu, po'o le fa'asologa o ta'avale.
O le vaega muamua o le tele o fa'aulu o le ea o le silica (SiO LUA), e ui lava o faiga fa'a'au'au fa'atasi e aofia ai polymers, kaponi, po'o fa'ameamea fa'ameamea e matua fa'aaogaina e fa'afetaui ai galuega.
O le uiga faʻapitoa o le ea o loʻo faʻapipiʻiina o latou nanostructured network, e masani ona faia i nanoparticles feso'ota'i e faia ai pores ma lapopo'a i lalo 100 nanometers– la'ititi nai lo le auala fa'afetai o vaega ea.
O lenei fa'alavelave fa'afale e mafai ona taofiofia lelei le fa'aosoina o kasa ma fe'avea'i vevela, fa'auma fa'auma ea i totonu o se tasi o insulators fa'amama fa'atuatuaina ua iloa.
1.2 Auala Fa'aopoopo ma Fa'agogo
The construction of aerogel coatings begins with the formation of a damp gel network through sol-gel chemistry, where molecular forerunners such as tetraethyl orthosilicate (TEOS) undergo hydrolysis and condensation reactions in a fluid medium to form a three-dimensional silica network.
This procedure can be fine-tuned to control pore size, si'i morphology, and cross-linking density by readjusting specifications such as pH, water-to-precursor ratio, and driver kind.
Once the gel network is created within a slim film setup on a substratum, the crucial obstacle hinges on getting rid of the pore liquid without breaking down the delicate nanostructure– a problem traditionally resolved through supercritical drying.
In supercritical drying out, the solvent (generally alcohol or CO ₂) e fa'amafanafanaina ma fa'amalosia i tala atu o lona tulaga taua, fa'a'ave'esea le va'aiga vai-ausa ma taofi le fa'aitiitiga fa'aoso fa'aoso fa'apalapala.
A o lelei, o lenei metotia e malosi-malosi ma sili atu ona le talafeagai mo faʻaoga tetele poʻo totonu o le nofoaga.
( Fa'aluega Airgel)
Ina ia aveese nei tapulaa, alualu i luma i le fa'amagoina o le fa'amago (APD) ua faʻatagaina moni lava le gaosiga o faʻapipiʻi malosi airgel e aunoa ma le manaʻomia o masini maualuga.
E maua lenei mea e ala i le fetuunaiga o luga ole feso'ota'iga silica e fa'aaoga ai sui fa'asili (e.g., trimethylchlorosilane), lea e suitulaga ai vaega o le hydroxyl i luga ole vaega ole vaega ole hydrophobic, fa'aititia le malosi o capillary i le taimi o le fa'asao.
O ufi fa'atupu e fa'atumauina porosities sili atu 90% ma le mafiafia e maualalo ifo i le 0.1– 0.3 g/cm ³, puipuia o latou faatinoga insulative a'o fa'ataga mo le gaosiga fa'ateleina.
2. Uiga Fa'avela ma Fa'ainisinia Lelei
2.1 Tulaga Fa'a'avevela Fa'avevela ma le Taofi Fe'avea'i Mafanafana
O le mea e sili ona lauiloa nofoia o ufiufi airgel o lo latou ultra-maualalo le vevela conductivity, masani e eseese mai 0.012 ia 0.020 W/m · K i tulaga si'osi'omaga– e tutusa ma le ea filemu ma e matua maualalo ifo nai lo mea masani fa'alumaina pei polyurethane (0.025– 0.030 W/m · K )po'o fulufulu minerale (0.035– 0.040 W/m · K).
O lenei tulaga lelei e afua mai i le seti o le tolu o le mafanafana fesiitaiga taofiofia masini i totonu o le nanostructure: la'ititi la'u fe'avea'i ona o feso'ota'iga manifinifi o ligaments silica, laʻititi le faʻaogaina o le ea ona o le Knudsen faʻasalalau i lalo-100 nm pores, ma fa'aitiitia le fa'aliliuina o le susulu e ala i le doping po'o le fa'aleleia o le pigment.
I faʻaoga faʻapitoa, e oo lava i mea manifinifi (1– 5 mm) o le fa'amae'aina o le ea e mafai ona ausia le tete'e vevela (R-taua) e fa'atusatusa i le fa'alumaina masani e sili atu le mafiafia, fa'atagaina sitaili fa'atapula'aina i le va'alele, atia'e teutusi, ma masini feaveai.
E lē gata i lea, fa'apipi'i o le airgel e fa'aalia le fa'atinoina o le fa'atinoga i se va'aiga tele o le vevela, mai faafitauli cryogenic (-200 °C )e feololo maualuga le vevela (tusa 600 ° C mo faiga silica mama), faia ia talafeagai mo siosiomaga ogaoga.
O lo latou maualalo o le emissivity ma le susulu o le la e mafai ona faʻamalosia atili e ala i le tuʻufaʻatasia o pigments infrared-reflective poʻo fausaga faʻapipiʻi tele., fa'alelei le fa'aola fa'aola i fa'aoga fa'aola.
2.2 Fa'ainisinia Tumama ma le Fa'asa'oga Fa'atasi
E tusa lava po o le a le tele o latou porosity, fa'auma fa'aonaponei airgel fa'aalia le malosi fa'ainisinia, aemaise lava pe a faʻamalosia i polymer binders poʻo nanofibers.
Fa'atupu fa'a'au'au fa'a'ala'au-inorganic, e pei o latou tu'ufa'atasiga silica aerogels ma polymers, epoxies, poʻo polysiloxane, fa'aleleia le fetuutuuna'i, pipi'i, ma a'afiaga tetee, e mafai ai e le ufiufi ona tumau i le tetete, uila vevela, ma abrasion laiti.
O nei faiga fa'apipi'i e fa'atumauina lelei le fa'agasologa o le fa'alumaina a'o fa'ataunu'uina le fa'aumiumi i tau fa'agata e o'o atu i le 5– 10%, puipuia mai le gau i lalo o le mamafa.
Faʻapipiʻi i substratum eseese– uamea, alumini, sima, tioata, ma pepa fe'avea'i– e maua i le fa'auluina o luga, sui tu'ufa'atasiga vaila'au, po'o le fa'apipi'iina i totonu o le nofoaga a'o togafiti.
E le gata i lea, e mafai ona crafted layers airgel e avea hydrophobic po superhydrophobic, fa'afefe vai ma taofi le susū o lo'o i totonu e ono fa'aleagaina ai le lelei o le fa'a'ese'ese pe fa'aoso ai le pala.
O lenei tu'ufa'atasiga o le malosi fa'ainisinia ma le si'osi'omaga e fa'aleleia ai le ola umi i fafo, gataifale, ma fa'alapotopotoga fa'apisinisi.
3. Fa'ata'ita'iga Fa'atino ma le Tu'ufa'atasiga Tele
3.1 Acoustic Damping and Audio Insulation Capability
I tua atu o pulega vevela, fa'auma a le airgel e fa'aalia ai le tele o le gafatia i le fa'alumaina o le leo ona o lo latou fa'aogaina o le nanostructure, lea e fa'ate'a ai le malosi lelei e ala i gau mafiafia ma fe'ese'esega i totonu.
O le feso'ota'iga nanopore fe'avea'i e fa'alavelaveina le fa'ateleina o galu fa'alogo, aemaise i le vaeluagalemu i le maualuga masani ituaiga, fa'auma lelei le fa'auma ea i le fa'aitiitia o le pisa i totonu o potu va'alele, laupapa ta'avale, ma luga o puipui fale.
Pe a tu'ufa'atasia fa'atasi ma fa'afugaga viscoelastic po'o tauiviga fa'ama'i fa'ama'i ma, faiga fa'avae aerogel e mafai ona fa'ataunu'uina le fa'aogaina o leo fa'asalalau fa'atasi ma sina mamafa fa'aopoopo– se aoga taua i le mamafa-maaleale talosaga.
O lenei multifunctionality e mafai ai ona mamanuina pa puipui vevela-acoustic, fa'aiti'itia le mana'oga mo le tele o fa'a'ese'ese eseese i fa'atulagaga lavelave.
3.2 Meatotino Tete'e Mu ma Fa'aitiitia Asu
O ufiufi o le Airgel e masani lava e le mafai ona mu, aua o faiga fa'avae silica e le fa'aopoopoina ai le suau'u i se afi ma e mafai ona fa'asagatau i le maualuga o le vevela i luga o mea fa'amumu o fale masani ma faufale ma oloa fa'amama..
Pe a fa'atatau i mea e mu e pei o laupapa, polymers, po'o 'ie, fa'apipi'i eaagel e galue o se fa'alavelave vevela, fa'atuai le fa'aliliuina o le mafanafana ma le pyrolysis, faʻapea ona faʻamalosia ai le afi ma faʻaleleia le taimi e sola ese ai.
O nisi fua fa'atatau o lo'o fa'apipi'i ai mea fa'apipi'i fa'apipi'i po'o dopants e fa'asa ai le afi (e.g., phosphorus poʻo mea boron) e fa'alautele i luga o le fa'avevela, fa'atupuina o se fa'a'ofu'a'a puipui e sili atu le puipuia o mea o lo'o i lalo.
I le male, e le pei o le tele o insulations fa'avae polymer, o fa'a'ele'ele o le ea e fa'atupu ai sina asu ma e leai ni mea fa'aleaga pe a pa'u i le vevela maualuga, fa'aleleia atili le saogalemu i totonu o si'osi'omaga fa'apipi'i e pei o tunnels, vaa, ma fale maualuluga.
4. Alamanuia ma Talosaga tula'i mai i Vaega atoa
4.1 Malosiaga lelei ile Faufale ma Meafaigaluega
Ole fa'ai'uga a le Airgel o lo'o suia faigofie le puleaina o le vevela ile sitaili ma le auivi.
Fa'atatau i fa'amalama, luga o puipui, ma taualuga, latou fa'aitiitia fa'amafanafana fale ma tone mālūlū e ala i le fa'aitiitia o fefa'ataua'iga fa'avevela ma fa'avevela, e saofagā i le fa'atulagaina o faufale e leai se malosi.
Ufiufi ea ea manino, aemaise lava, fa'atagaina le felauaiga i le ao a'o poloka le maua o le vevela, fa'apena lelei mo fa'amalama fa'alelei ma luga o puipui puipui.
I paipa fale gaosimea ma tane teuina, fa'a'ese'ese fa'a'ele'ele e fa'aitiitia ai le malosi o le ausa, cryogenic, ma fa'agaioiina faiga fa'asuavai, fa'aleleia atili le fa'atinoina o galuega ma fa'aitiitiga fa'asu kaponi.
O latou fa'ailoga manifinifi e mafai ai ona toe fa'aleleia i nofoaga fa'atapula'a avanoa e le mafai ai ona fa'apipi'i fa'alava masani.
4.2 Aerospace, Puipuiga, ma La'ei Fa'afouga Fa'asu'esu'ega
I le vateatea, fa'apipi'i o le ea ea e fa'amautu vaega ma'ale'ale mai suiga ogaoga o le vevela i le taimi atoa o le toe ulufale mai o le ea po'o le va'aiga loloto..
O lo'o fa'aaogaina i faiga e puipuia ai le vevela (TPS), fale satelite, ma laina e fetaui lelei i le vateatea, lea e fa'asa'o sa'o ai le fa'aputuga o le mamafa i le fa'aititia o tau fa'alauiloa.
I talosaga puipuia, 'ie fa'apipi'i aerogel e ofoina atu le fa'amama mama mama mo tagata faigaluega ma meafaigaluega i arctic po'o le toafa ea..
O mea fa'atekonolosi fa'alavalava e maua mai fa'aputuga fe'avea'i fe'avea'i e fa'asaoina le vevela o le tino i 'ofu atamai, meafaigaluega i fafo, ma faiga fa'avae fa'amama fa'afoma'i.
E le gata i lea, su'esu'ega o lo'o su'esu'eina fa'amae'a o le ea'ele'ele fa'atasi ma vaega fa'alogo fa'apipi'i po'o mea e sui vaega (PCMs) mo fetuutuunai, insulation fa'afeiloa'i e fa'afetaui i fa'afitauli tau si'osi'omaga.
Mulimuli ane, fa'apipi'i a le ea o lo'o fa'ata'ita'iina le malosi ole fa'ainisinia nanoscale e fa'afetaia'ia ai fa'afitauli fa'apitoa ile malosi, saogalemu, ma le gafataulimaina.
E ala i le tuʻufaʻatasia o le faʻauluina o le vevela ultra-maualalo faʻatasi ma le faʻaogaina o masini ma gafatia faʻapitoa, ua latou toe faauigaina tapula'a o inisinia i luga.
A'o maualalo le tau o le gaosiga ma fa'aogaina auala e sili atu ona aoga, fa'apipi'i eaagel ua fa'atulagaina e o'o mai e avea ma oloa fa'apitoa i le fa'alumaina o le isi augatupulaga, faiga saogalemu, ma vaega i luga o le atamai i maketi uma.
5. ole atu
O le Cabr-Concrete ose fa'atau oloa Fa'afefiloi Sima ma sili atu 12 tausaga o le poto masani i le faʻasaoina o le malosi o le nano-building ma le atinaʻeina o nanotechnology. E talia totogi e ala ile Credit Card, T/T, West Union ma Paypal. TRUNNANO o le a lafo atu oloa i tagata faʻatau i fafo e ala i FedEx, DHL, i le ea, po o le sami. Afai o loʻo e suʻeina se faʻafefiloi sima maualuga, fa'amolemole lagona le saoloto e fa'afeso'ota'i i matou ma lafo mai se su'esu'ega.
Fa'ailoga:Fa'aluega Airgel, Silica Airgel Insulation Insulation Coating, fa'alavalava fa'avela
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