Qhov sib txawv tseem ceeb ntawm oxygen absorber thiab silica gel yog cov pa oxygen absorbers nqus pa tab sis tsis ya raws, whereas silica gel tuaj yeem nqus dej noo.
Oxygen absorbers thiab silica gel yog cov khoom tseem ceeb siv hauv cov ntawv ntim khoom noj. Cov pa oxygen absorber lossis oxygen scavenger yog ib yam khoom uas peb siv los tshem tawm lossis txo cov pa oxygen hauv ib pob. Silica gel yog hom molecular sieve uas muaj cov qauv tsis sib xws ntawm silicon thiab oxygen atoms nrog cov pores tsis sib xws.
Oxygen Absorber yog dab tsi?
Ib lub pa oxygen absorber lossis oxygen scavenger yog ib yam khoom uas pab tshem tawm lossis txo cov pa oxygen hauv ib pob. Cov pa oxygen absorbers kuj tseem pab tau kom muaj kev nyab xeeb ntawm cov khoom lag luam thiab txuas ntxiv lub neej txee. Lawv feem ntau tuaj raws li me me, ntim cov hnab lossis hnab ntim khoom (raws li qhia hauv daim duab hauv qab no). Cov pa oxygen absorbers tuaj yeem yog cov khoom sib cais lossis ib feem ntawm cov ntim zaj duab xis lossis cov qauv.
Daim duab 01: Oxygen Absorber
Cov khoom xyaw ntawm cov pa oxygen absorber sib txawv nyob ntawm qhov kev npaj siv, dej ua haujlwm ntawm cov khoom uas nws tau npaj tseg, thiab qee yam lwm yam. Feem ntau, niaj hnub oxygen absorber packets siv cov hmoov hlau thiab sodium chloride sib tov. Txawm li cas los xij, nws feem ntau suav nrog cov pa roj carbon activated vim nws tuaj yeem nqus tau qee cov pa roj thiab cov organic molecules. Qhov no pab khaws cov zaub mov ntxiv thiab tshem tawm cov ntxhiab tsw. Thawj cov pa oxygen absorber siv yog cov tshuaj alkaline ntawm pyrogallic acid nyob rau hauv lub nkoj cua nruj.
Muaj ntau yam txiaj ntsig ntawm kev siv cov pa oxygen absorbers: pab khaws cov tshiab-roasted tsw ntawm kas fes thiab txiv ntseej, tiv thaiv oxidation ntawm txuj lom oleoresins, tiv thaiv oxidation ntawm vitamin A, C, thiab E, ncua lub neej ntawm kws tshuaj, etc.
Silica Gel yog dab tsi?
Silica gel yog hom molecular sieve uas muaj cov qauv tsis sib xws ntawm silicon thiab oxygen atoms nrog cov pores tsis sib xws. Nws yog amorphous daim ntawv ntawm silicon dioxide. Ntxiv mus, nws muaj nanometer-scale voids thiab pores. Cov voids no yuav muaj dej los yog lwm yam kua uas siv los npaj cov silica gel. Piv txwv li, roj, lub tshuab nqus tsev, lwm cov kuab tshuaj, thiab lwm yam. Vim tias qhov pore qhov ntau thiab tsawg yog tsis sib xws, peb tuaj yeem hais tias qhov no molecular sieve muaj qhov pore qhov nruab nrab ntawm 2.4 nm.
Daim duab 02: Silica Gel
Silica gel muaj kev sib raug zoo rau dej, yog li peb tuaj yeem siv nws ua cov khoom siv desiccant. Cov khoom no yog ib qho nyuaj heev thiab translucent. Txawm li cas los xij, nws yog qhov muaj txiaj ntsig zoo dua li silica iav lossis quartz. Thaum silica gel saturated nrog dej, nws tseem nyob rau hauv ib qho nyuaj.
Hauv qib kev lag luam, peb tuaj yeem pom silica gel hauv daim ntawv granules lossis hlaws. Cov hlaws no muaj txoj kab uas hla ntawm ob peb millimeters. Qee lub sij hawm, cov hlaws dai no kuj muaj qee qhov ntawm qhov ntsuas reagent uas tuaj yeem hloov xim ntawm cov hlaws thaum dej nqus. Raws li cov khoom siv desiccant, cov hlaws dai no suav nrog hauv cov pob khoom noj ua cov pob me me kom nqus dej vapor hauv pob.
Qhov txawv ntawm Oxygen Absorber thiab Silica Gel yog dab tsi?
Qhov sib txawv tseem ceeb ntawm oxygen absorber thiab silica gel yog cov pa oxygen absorbers nqus pa tab sis tsis ya raws, qhov silica gel tuaj yeem nqus dej noo. Ntxiv mus, oxygen absorbers feem ntau yog ua los ntawm hlau hmoov thiab ntsev, whereas silica gels yog ua los ntawm ib tug amorphous thiab ntxeem tau daim ntawv ntawm silicon dioxide.
Cov hauv qab no qhia txog qhov sib txawv ntawm cov pa oxygen absorber thiab silica gel hauv daim ntawv tabular rau kev sib piv ntawm ib sab.
Summary – Oxygen Absorber vs Silica Gel
Tus pa oxygen absorber lossis oxygen scavenger yog ib yam khoom uas pab tshem tawm lossis txo cov pa oxygen hauv ib pob. Silica gel yog ib hom molecular sieve uas muaj cov qauv tsis sib xws ntawm silicon thiab oxygen atoms nrog cov pores tsis sib xws. Qhov sib txawv tseem ceeb ntawm oxygen absorber thiab silica gel yog lawv lub peev xwm nqus dej noo, piv txwv li, oxygen absorbers tsis tuaj yeem nqus dej noo, thaum silica gel tuaj yeem nqus dej noo.
