Industrial Defoaming - Tcc

Defoaming Applications thiab Defoamer Classification​

1. Kev Taw Qhia

Ua Npuas Ncauj yog ib qho kev sib cais uas muaj cov pa roj- puv npuas sib cais los ntawm cov kua nplaum nyias nyias. Thaum ua npuas ncauj tuaj yeem tsim nyog rau qee qhov kev siv xws li khoom noj thiab tshuaj pleev ib ce rau nws cov kev ntxhib los mos - txhim kho cov khoom, hauv ntau cov txheej txheem kev lag luam thiab hauv tsev, cov npuas dej ntau dhau tuaj yeem ua rau muaj teeb meem loj. Defoaming, txheej txheem ntawm kev txo lossis tshem tawm ua npuas ncauj, yog qhov tseem ceeb hauv cov xwm txheej no. Defoamers, tseem hu ua cov tshuaj tiv thaiv foaming, ua lub luag haujlwm tseem ceeb hauv kev ua kom tau zoo defoaming. Kab lus no tshawb txog ntau hom kev siv uas yuav tsum tau defoaming thiab kev faib tawm ntawm defoamers

2. Kev siv ntawm Defoaming

2.2 Cov ntawv thov hauv tsev

• Khaub Ncaws: Ua npuas ncauj tuaj yeem ua teeb meem hauv cov ntxhua khaub ncaws, tshwj xeeb tshaj yog nyob rau hauv cov tshuab ntxhua khaub ncaws ua haujlwm siab. Ua npuas ncauj ntau dhau tuaj yeem txo qhov kev ua haujlwm ntawm kev ntxhua khaub ncaws thiab ua rau muaj teeb meem hauv lub tshuab ntxhua khaub ncaws. Defoamers tau ntxiv rau cov ntxhua khaub ncaws ntxhua khaub ncaws kom tswj tau ua npuas ncauj, ua kom muaj kev tu kom zoo thiab tiv thaiv ua npuas dej - cov teeb meem cuam tshuam.
• Dishwashing: Zoo ib yam li kev ntxhua khaub ncaws, ua npuas ncauj ntau dhau hauv cov dej ntxuav tais diav tuaj yeem ua tsis yooj yim. Nws tuaj yeem dhau los ntawm lub dab dej thiab ua rau cov txheej txheem ntxuav. Defoamers tau muab tso rau hauv cov khoom siv ntxuav tais diav kom txwv tsis pub ua npuas ncauj, ua rau kev ntxuav tais diav ntau dua thiab tsis muaj dab tsi.

 

3. Kev faib tawm ntawm Defoamers

 

3.1 Raws li Chemical Composition

• Silicone-based Defoamers: Silicone defoamers tau dav siv vim lawv cov kev ua haujlwm zoo heev. Lawv feem ntau yog tsim los ntawm polydimethylsiloxane (PDMS) thiab nws cov derivatives. PDMS muaj qhov nro qis nro, uas tso cai rau nws kom nrawm nrawm rau saum npoo ntawm npuas npuas, ua rau cov npuas kom tawg ntom. Silicone defoamers muaj txiaj ntsig zoo hauv ntau yam kev siv, suav nrog cov txheej txheem kev lag luam, kev tsim khoom noj thiab dej haus, thiab kev kho dej. Lawv kuj yog cua sov - resistant thiab chemically ruaj khov, ua rau lawv haum rau siv nyob rau hauv high - kub thiab hnyav tshuaj ib puag ncig. Txawm li cas los xij, hauv qee daim ntawv thov uas cov kev cai nruj ntawm cov khoom siv silicone muaj nyob, xws li hauv qee yam khoom noj - hu rau daim ntawv thov, lawv siv yuav raug txwv.
• Mineral Roj - raws li Defoamers: Mineral oil defoamers muaj cov roj ntxhia nrog cov khoom ntxiv. Cov roj ntxhia ua raws li lub ntsiab defoaming tivthaiv los ntawm kev sib kis ntawm cov npuas npuas thiab cuam tshuam cov kua zaj duab xis. Cov defoamers no kuj pheej yig thiab feem ntau siv rau hauv cov ntawv thov uas tus nqi yog qhov tseem ceeb, xws li hauv qee qhov kev lag luam. Lawv kuj muaj txiaj ntsig zoo hauv kev tswj cov npuas dej hauv cov tshuab aqueous. Txawm li cas los xij, lawv qhov kev ua tau zoo tuaj yeem cuam tshuam los ntawm qhov muaj cov surfactants nyob rau hauv qhov nruab nrab foaming, thiab lawv yuav muaj luv luv - nyob defoaming nyhuv piv rau lwm hom defoamers.
• Polyether-based Defoamers: Polyether defoamers yog tsim los ntawm polyether polymers. Lawv ua hauj lwm los ntawm adsorbing mus rau lub npuas npuas nto thiab hloov cov khoom nto ntawm npuas, ua rau defoaming. Polyether defoamers yog tshwj xeeb tshaj yog haum rau daim ntaub ntawv uas compatibility nrog foaming nruab nrab yog ib qho tseem ceeb, xws li nyob rau hauv ib co zaub mov thiab dej haus daim ntaub ntawv. Lawv kuj yog biodegradable nyob rau hauv qee kis, ua rau lawv ntau tus phooj ywg ib puag ncig piv rau lwm hom defoamer. Txawm li cas los xij, lawv cov defoaming efficiency yuav txawv nyob ntawm seb cov qauv tshuaj tshwj xeeb ntawm polyether thiab qhov xwm txheej ntawm foaming system.

3.2 Raws li Hom Kev Ua Haujlwm

• Antifoaming Agents: Antifoaming agents yog defoamers uas tiv thaiv kev tsim ua npuas ncauj. Lawv ua haujlwm los ntawm kev cuam tshuam rau saum npoo - cov neeg ua haujlwm nquag hauv qhov nruab nrab foaming. Piv txwv li, ib co antifoaming agents tuaj yeem adsorb rau saum npoo - cov khoom siv molecules, txo lawv lub peev xwm los tsim cov yeeb yaj kiab ruaj khov. Antifoaming cov neeg ua haujlwm feem ntau tau ntxiv rau cov tshuab thaum pib ntawm cov txheej txheem los tiv thaiv npuas los ntawm kev tsim thawj qhov chaw.
• De-foaming Agents: De - foaming agents, ntawm qhov tod tes, yog siv los rhuav tshem cov npuas dej uas twb muaj lawm. Lawv ua los ntawm kev sib kis sai sai ntawm cov npuas npuas, ua rau cov kua zaj duab xis tawg. De - foaming agents feem ntau yog siv thaum ua npuas ncauj tau tsim thiab yuav tsum tau tshem tawm sai sai. Qee zaum, kev sib xyaw ua ke ntawm cov tshuaj tua kab mob thiab de - foaming agents yuav raug siv rau kev tswj ua npuas ncauj hauv ib txheej txheem.

3.3 Raws li Daim Ntawv Qhia Txog Lub Cev

• Ua kua Defoamers: Liquid defoamers yog cov ntawv tshaj plaws. Lawv yooj yim los lis thiab tuaj yeem yooj yim ntxiv rau qhov nruab nrab foaming. Liquid defoamers tuaj yeem tsim ua emulsions, kev daws teeb meem, lossis kev ncua, nyob ntawm seb cov ntawv thov tshwj xeeb. Lawv tsim nyog rau ntau yam kev siv, los ntawm cov txheej txheem kev lag luam loj mus rau cov khoom siv hauv tsev ..
• Khoom Defoamers: Cov khoom defoamers tsis tshua muaj tab sis muaj txiaj ntsig zoo hauv qee cov ntawv thov tshwj xeeb. Lawv feem ntau nyob rau hauv daim ntawv ntawm hmoov los yog granules. Cov khoom defoamers tuaj yeem raug ntxiv ncaj qha rau hauv lub tshuab ua npuas dej, thiab lawv maj mam tso cov khoom defoaming thaum lawv yaj lossis tawg mus rau hauv nruab nrab. Lawv tshwj xeeb tshaj yog haum rau cov ntawv thov uas qeeb - tso tawm ntawm tus neeg saib xyuas defoaming yog xav tau, xws li hauv qee lub sijhawm khaws cia lossis txuas ntxiv - txheej txheem kev thov.

4. Xaus

Defoaming yog txheej txheem tseem ceeb hauv ntau yam kev lag luam thiab kev siv hauv tsev los daws cov teeb meem tshwm sim los ntawm kev ua npuas dej ntau dhau. Kev faib tawm ntawm defoamers raws li tshuaj muaj pes tsawg leeg, hom kev ua, thiab daim ntawv lub cev muab ntau yam kev xaiv rau kev siv sib txawv. Kev xaiv ntawm qhov tsim nyog defoamer nyob ntawm cov yam ntxwv xws li qhov xwm txheej ntawm qhov nruab nrab foaming, daim ntawv thov yuav tsum tau, thiab txhua yam kev txwv. Los ntawm kev nkag siab txog cov ntawv thov ntawm defoaming thiab kev faib tawm ntawm defoamers, kev lag luam thiab cov neeg siv khoom tuaj yeem tswj tau ua npuas ncauj zoo thiab txhim kho kev ua tau zoo thiab zoo ntawm lawv cov txheej txheem thiab cov khoom.