Kuv ntseeg tias txhua tus neeg paub zoo txog silica gel desiccant, seb nws yog ob peb grams rau kaum ob grams ntawm cov pob khoom me rau ob peb puas grams rau ob peb puas ntawm cov pob loj thiab lwm yam txawv ntim tshwj xeeb. Tsis tsuas yog muaj ntau yam ntim tshwj xeeb, tab sis lawv kuj pheej ywg. Tab sis vim li cas muaj coob tus neeg tsis txaus siab rau ya raws cov nyhuv ntawm kev siv silica gel desiccant? Cia' s ntsib silica gel desiccant. Thiab vim li cas nws tsis haum rau cov khoom pov thawj-noo.
Silica gel yog iav zoo li, silicon dioxide nrog coob tus microporous qauv. Hais txog, inorganic silica gel yog siv raws li desiccant. Qhov loj ntawm lub qhov hws uas qhib hauv sab hauv silica gel txog qib nanometer. Cov micropores no ua qhov tshwj xeeb ib cheeb tsam cheeb tsam muaj peev xwm ntawm cov dej adsorbing hla saum npoo ntawm capillary.
Qhov zoo ntawm silica gel desiccant tseem yuav sib txawv raws li hom thiab muaj cov yam ntxwv sib txawv adsorption. Raws li qhov loj ntawm nws cov pore loj, silica gel tau muab faib ua: loj-pore silica gel, coarse-pore silica gel, B-hom silica gel, thiab zoo-pore silica gel. Vim tias qhov txawv pore qauv, lawv cov khoom adsorption zoo li qub. Cov ntxig-pored silica cov gels muaj ntau dua qhov tso tawm dua nyob rau hauv qhov chaw muaj huab cua sov, thaum nplua-pored silica cov gels muaj ntau dua adsorption muaj peev xwm ntau dua li cov ntxhib-pored silica gels nrog qis txheeb ze cov av noo, thaum hom B silica gels muaj pore qauv ntawm ntxhib thiab zoo Lub peev xwm adsorption tseem nyob nruab nrab ntawm ntxhib thiab cov pores zoo. Txawm li cas los xij, nyob rau hauv ib txwm muaj xwm txheej, lub peev xwm nqus dej noo ntawm silica gel desiccant feem ntau nyob nruab nrab ntawm 10-15%, uas yog qis dua li ntawm cov calcium calcium chloric desiccant uas muaj ultra-siab 300% noo muaj peev xwm nqus tau. Qhov laj thawj tseem ceeb tshaj plaws rau noo noo thiab dehumidification ntawm cov khoom lag luam uas muaj cov dej noo siab.
Tsis tas li ntawd, thaum qhov kub dhau 40 degrees Celsius, cov dej noo uas tau nqus los ntawm cov kua roj silic gel desiccant yuav yaj dua, uas ua rau lub silica gel desiccant tsis tsim nyog rau qhov chaw cia nrog qhov kub tshaj ntawm {{0 }} degrees, xws li ya raws cov thawv ntim.
Ntawm no peb pom zoo cov hygroscopic calcium chloride desiccant, uas yog tsim los ntawm kev siv tshuaj dawb calcium chloride. Hygroscopic calcium chloride siv tag nrho cov qauv thoob ntiaj teb export, ua tau raws cov cai ntawm EU thiab lwm lub tebchaws tsis muaj DMF, thiab yog 100% muaj kev nyab xeeb thiab ua haujlwm zoo. Cov. Tom qab kuaj, tag nrho cov calcium chloride desiccants muaj peev xwm dhau ntawm 300% noo noo nqus, thiab tuaj yeem txuas ntxiv nqus noo noo txog li 90 hnub yam tsis muaj cuam tshuam. Nws yog tus pabcuam pabcuam zoo rau ya raws thiab dehumidification ntawm cov khoom muaj cov ntsiab lus noo siab.