Molecular sieve hmoovtau dhau los ua ib qho tseem ceeb hauv kev tsim cov txheej txheem polyurethane, nplaum, sealants, thiab elastomers. Cov hmoov zoo li no, tseem hu ua zeolite hmoov, tuaj nyob rau hauv ntau qhov ntau thiab tsawg hu ua 3a, 4a, 5a, thiab 13x. Lawv lub peev xwm muaj peev xwm xaiv tau adsorb molecules ua rau lawv zoo tagnrho rau kev tshem tawm cov dej thiab lwm yam impurities los ntawm cov khoom no.
Ib qho tseem ceeb cuam tshuam rau qhov zoo ntawm cov khoom polyurethane yog cov dej noo, uas tuaj yeem cuam tshuam rau cov khoom viscosity, lub zog, lub sijhawm kho, thiab lub zog ntawm lub cev. Txhua qhov kev hloov pauv ntawm cov dej noo tuaj yeem ua rau kev ua haujlwm tsis zoo, ua rau cov khoom qis dua lossis siv tsis tau. Txawm li cas los xij, kev siv cov hmoov nplej molecular sieve hauv kev tsim khoom pab tswj cov dej noo los ntawm kev xaiv cov dej molecules thaum tawm hauv lwm cov khoom ntawm lub cev tsis muaj kev cuam tshuam.
Qhov kev xaiv ntawm qhov tsim nyogzeolite hmoovnyob ntawm qhov kev thov tshwj xeeb. Piv txwv li, 3a molecular sieve hmoov muaj txiaj ntsig zoo rau kev tshem tawm cov dej hauv cov tshuab uas muaj cov cua kub qis, thaum 4a thiab 5a hom tuaj yeem tshem tawm cov dej noo los ntawm cov kua thiab cov pa nrog qhov kub siab dua. Hom 13x yog tsim rau kev tshem tawm cov organic molecules loj, tsw, thiab carbon dioxide.
Molecular sieve hmoov muaj ntau cov txiaj ntsig hauv polyurethane coatings, adhesives, sealants, thiab elastomers manufacturing. Piv txwv li, lawv tshem tawm qhov xav tau rau cov txheej txheem ziab khaub ncaws kim. Tsis tas li ntawd, lawv muab cov txiaj ntsig kom qhuav uas txhim khu kev qha thiab zoo ib yam, yog li txhim kho qhov zoo ntawm cov khoom kawg. Kev siv cov hmoov no tseem txuas ntxiv lub txee lub neej ntawm cov khoom thiab txo qis kev pheej hmoo corrosion thaum khaws cia.
Hauv kev xaus, molecular sieve hmoov, los yog zeolite hmoov, tseem yog ib feem tseem ceeb ntawm polyurethane coatings, adhesives, sealants, thiab elastomers. Qhov kev xaiv ntawm cov hmoov uas tsim nyog, xws li 3a, 4a, 5a, lossis 13x, nyob ntawm cov ntawv thov tshwj xeeb. Los ntawm kev yooj yim tshem tawm cov dej noo thiab tswj impurity, cov hmoov no pab txhim kho cov khoom zoo thiab txo cov nqi tsim khoom.
