Kev siv ntawm silica airgel xav

Cov khoom siv airgel tau npaj los ntawm cov cuab yeej siv fiber ntau, thiab tau npaj los ntawm dipping sol, gel, solvent displacement thiab supercritical drying processes. Nws muaj cov yam ntxwv ntawm cov thermal conductivity tsawg, siab hydrophobicity, zoo poob siab nqus thiab tiv thaiv hluav taws kub. Nyob rau tib lub sijhawm, yoog raws lossis nruj inorganic fiber reinforced airgel cov ntaub ntawv tuaj yeem tsim raws li qhov xav tau, uas tuaj yeem siv rau thermal rwb thaiv tsev thiab nplaim hluav taws xob ntawm lub zog tshiab kev lag luam tsheb, thermal rwb thaiv tsev thiab kev txuag hluav taws xob thiab kev tiv thaiv corrosion ntawm cov kav dej, thermal rwb thaiv tsev thiab kev txuag hluav taws xob ntawm cov kav dej cua sov, thermal rwb thaiv tsev thiab hluav taws kub tiv thaiv lub tsev sab nrauv phab ntsa, thermal rwb thaiv tsev ntawm high-temperature pipelines thiab cov khoom siv nyob rau hauv thermal hwj chim teb, txias rwb thaiv tsev ntawm cov kav dej thiab cov khoom siv nyob rau hauv sib sib zog nqus teb xws li LNG, thiab lwm yam.

Lub hydrophobicity ntawm airgel tuaj yeem ua rau cov txheej txheem rwb thaiv tsev ntawm cov raj xa dej tsis zoo thiab tiv thaiv cov tshuaj tiv thaiv condensation los ntawm qhov kub thiab txias. Txhawm rau ua tiav cov nyhuv thermal rwb thaiv tsev, lub thickness ntawm cov khoom siv airgel yog me dua (tsuas yog 1/3 ntawm pob zeb ntaub plaub thiab 1/5 ntawm cov perlite nthuav), uas ua kom cov raj xa dej kom zoo dua, txo cov av ua haujlwm kom muaj nuj nqis thiab ntev, thiab txo qis ntxiv. tus nqi them.

Nrog rau kev ua tau zoo hauv ntau yam, iav fiber ntau airgel muaj qhov cuam tshuam zoo hauv thermal rwb thaiv tsev daim ntaub ntawv ntawm cov roj hnyav ntau cov kav dej, roj refining pipelines, roj teb chav boilers, distillation yees, tshuaj tiv thaiv pipelines, cia tso tsheb hlau luam, twj, li qub, ntuj gas thiab LNG liquefied gas pipelines, cov kav dej hiav txwv tob thiab lwm yam khoom siv. Tam sim no, refineries ntawm lub ntiaj teb no loj-scale petrochemical tuam txhab uas muag, xws li ExxonMobil, Plhaub, Chevron, PetroChina, Huachang Chemical, thiab lwm yam., feem ntau siv silica fiber airgel zoo li thermal rwb thaiv tsev khoom.