Qhov sib txawv tseem ceeb ntawm cov tshuaj tiv thaiv thiab defoamer yog cov tshuaj tiv thaiv kab mob tuaj yeem tiv thaiv ua npuas ncauj los ntawm kev sib sau, whereas defoamers tuaj yeem tswj cov npuas uas twb muaj lawm.
Antifoam thiab defoamer yog ob qho tshuaj tua kab mob uas muaj cov ntawv thov sib txawv nyob ntawm lawv hom kev ua thiab sijhawm. Muaj ntau ntau hom tshuaj tiv thaiv kab mob, xws li silicone compounds, cawv compounds, organic compounds, thiab lwm yam.
Antifoam yog dab tsi?
Antifoam yog ib qho tshuaj ntxiv uas tuaj yeem tiv thaiv kev tsim ua npuas ncauj. Feem ntau, cov neeg tsim khoom siv cov tshuaj tua kab mob hauv lawv cov qauv yog tias lawv cia siab tias yuav tsim cov npuas dej thaum siv. Antifoams feem ntau yog me ntsis soluble hauv cov tshuaj foaming, thiab lawv tuaj yeem ua rau txo qis qhov nro.
Daim duab 01: Polydimethylsiloxane, siv dav siv tshuaj tiv thaiv kab mob
Cov tshuaj tua kab mob uas siv ntau tshaj plaws suav nrog cov tshuaj silicone thiab cov dej kub npau npau, suav nrog oleyl cawv thiab octylphenoxyethanol. Feem ntau, cov tshuaj no tau ntxiv batch-wise thaum xav tau. batch ntau npaum li cas ntawm 5 mus rau 20 ppm. Ntxiv mus, cov additives no ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj txiaj ntsig ntawm kev ntxuav. Qhov no tshwm sim los ntawm kev nkag mus rau huab cua los ntawm kev tsim hauv cov kab ke uas tuaj yeem tso cai yooj yim dua thiab tsis txwv kev ntws tawm ntawm cov ntxaij vab tshaus thiab ntxhua khaub ncaws.
Dab tsi yog Defoamer?
Defoamer yog tus neeg saib xyuas kev ua npuas ncauj uas tuaj yeem tswj cov npuas dej uas twb muaj lawm hauv cov kua dej uas muaj txiaj ntsig zoo hauv kev lag luam sib txawv. Cov defoamers tuaj yeem tshem tawm cov npuas dej uas twb muaj lawm hauv cov kua, tab sis lawv tsis tuaj yeem tiv thaiv kev tsim cov npuas dej tshiab. Feem ntau cov piv txwv ntawm defoamers muaj xws li cov roj insoluble, polydimethylsiloxanes thiab lwm yam silicone compounds, cawv, stearates thiab glycols. Peb tuaj yeem hu ua defoamer ua cov tshuaj ntxiv. Cov tshuaj ntxiv no siv tau thaum peb xav tau ua npuas dej uas twb tsim lawm.
Daim duab 02: Kev Ua ntawm Defoamer
Feem ntau, cov tshuaj no yog insoluble nyob rau hauv lub foaming nruab nrab thiab muaj nto-active zog. Raws li ib qho tshwj xeeb ntawm defoamers, peb tuaj yeem txheeb xyuas lawv cov viscosity tsawg thiab muaj peev xwm kis tau sai rau ntawm qhov chaw foamy. Tsis tas li ntawd, cov defoamers muaj kev sib haum xeeb rau huab cua-kua deg. Lawv destabilize cov npuas lamellas. Qhov no destabilization ua rau rupture ntawm huab cua npuas, thiab nws tuaj yeem ua rau tawg ntawm cov npuas dej.
Muaj ntau hom defoamers, xws li roj-raws li defoamers, hmoov defoamers, dej-raws li defoamers, silicone-raws li defoamers, alkyl polyacrylates, thiab EO / PO raws li defoamers. Ntawm lawv, roj-raws li defoamers yog hom additive tshaj plaws.
Qhov txawv ntawm Antifoam thiab Defoamer yog dab tsi?
Antifoams thiab defoamers yog cov tshuaj tua kab mob uas peb tuaj yeem siv ua tshuaj ntxiv hauv kev lag luam. Qhov sib txawv tseem ceeb ntawm antifoam thiab defoamer yog tias cov tshuaj tua kab mob tuaj yeem tiv thaiv ua npuas ncauj los ntawm kev sib sau, thaum defoamers tuaj yeem tswj tau cov npuas dej uas twb muaj lawm. Yog li ntawd, antifoams txo cov npuas tsim thaum defoamers txo cov npuas dej uas twb muaj lawm. Tsis tas li ntawd, cov khoom siv silicone thiab cov dej kub npau npau suav nrog oleyl cawv thiab octylphenoxyethanol yog cov piv txwv ntawm cov tshuaj tiv thaiv thaum cov roj defoamers, hmoov defoamers, dej-raws li defoamers, silicone-based defoamers, alkyl polyacrylates, thiab EO / PO raws li defoamers yog cov piv txwv ntawm defoamers.
Cov infographic hauv qab no qhia txog qhov sib txawv ntawm cov tshuaj tiv thaiv thiab defoamer hauv daim ntawv teev npe.
Summary – Antifoam vs Defoamer
Antifoams thiab defoamers yog cov tshuaj tua kab mob uas peb tuaj yeem siv ua tshuaj ntxiv hauv kev lag luam. Qhov sib txawv tseem ceeb ntawm antifoam thiab defoamer yog tias cov tshuaj tua kab mob tuaj yeem tiv thaiv ua npuas ncauj los ntawm kev sib sau, qhov defoamers tuaj yeem tswj tau cov npuas dej uas twb muaj lawm.
