Classification thiab Application of Defoamers

Hauv ntau qhov kev lag luam thiab niaj hnub - kev ua neej nyob, ua npuas ncauj tuaj yeem ua rau muaj teeb meem ntau yam. Piv txwv li, nyob rau hauv kev lag luam fermentation, ua npuas ncauj ntau dhau yuav ua rau overflow ntawm fermentation broth, cuam tshuam rau kev tsim khoom thiab cov khoom zoo; hauv cov txheej txheem tha xim, ua npuas dej hauv cov xim tuaj yeem ua rau muaj qhov tsis xws luag ntawm cov khoom pleev xim. Defoamers yog cov khoom siv los tshem tawm lossis txo cov npuas dej, thiab lawv ua lub luag haujlwm tseem ceeb hauv ntau thaj chaw.

Kev faib tawm ntawm Defoamers -Organic Silicon Defoamers

Kev sib xyaw thiab cov qauv

Organic silicon defoamers yog tsim los ntawm polysiloxanes, xws li dimethyl polysiloxane. Cov silicon - oxygen daim ntawv cog lus hauv lawv cov qauv muaj lub zog tsis tshua muaj zog, uas ua rau lawv kis tau yooj yim ntawm cov npuas dej.

Lawv feem ntau muaj cov pab pawg hydrophobic zoo li methyl pawg txuas nrog silicon atoms, txhim kho lawv lub peev xwm los cuam tshuam nrog huab cua - kua interface ntawm cov npuas dej.

Cov khoom

Organic silicon defoamers muaj zoo heev defoaming efficiency. Lawv tuaj yeem tawg ua npuas ncauj sai sai thiab tshem tawm ua npuas ncauj

Lawv muaj qhov kub thiab txias - tiv taus, muaj peev xwm tswj tau lawv cov kev ua haujlwm defoaming ntawm qhov kub thiab txias, uas ua rau lawv tsim nyog rau kev siv hauv cov txheej txheem kub xws li roj refining thiab qee cov tshuaj tiv thaiv.

Lawv kuj muaj tshuaj lom neeg ruaj khov thiab tsis yooj yim cuam tshuam los ntawm cov tshuaj lom neeg ntawm lub cev, yog li lawv tuaj yeem siv ntau yam acidic, alkaline, thiab nruab nrab media.

Polyether Defoamers

Kev sib xyaw thiab cov qauv

Polyether defoamers yog tsim los ntawm polyether polymers, uas feem ntau yog tsim los ntawm ethylene oxide (EO), propylene oxide (PO), thiab lwm yam monomers. Qhov sib txawv ntawm EO thiab PO tuaj yeem kho cov khoom ntawm polyether defoamer

Piv txwv li, yog tias cov ntsiab lus ntawm EO yog qhov siab, polyether defoamer tuaj yeem muaj qhov zoo dua hydrophilicity, thaum cov ntsiab lus PO ntau dua tuaj yeem ua rau nws cov hydrophobicity.

Cov khoom

Polyether defoamers muaj solubility zoo nyob rau hauv ntau cov organic solvents thiab aqueous daws. Qhov no solubility tso cai rau lawv mus disperse tusyees nyob rau hauv lub foaming system, txhim kho lawv cov nyhuv defoaming.

Lawv kuj pheej yig dua piv rau lwm hom defoamers, uas ua rau lawv nrov hauv kev lag luam loj.

Lawv tuaj yeem hloov kho kom muaj qhov sib txawv ntawm kev ua npuas ncauj thiab kev ua haujlwm antifoaming raws li cov kev cai tshwj xeeb ntawm daim ntawv thov, ua rau lawv muaj ntau yam.

Mineral Roj - Raws li Defoamers

Kev sib xyaw thiab cov qauv

Mineral roj - raws li defoamers yog tsim los ntawm cov roj ntxhia, uas yog hydrocarbons muab los ntawm roj av. Lawv kuj tseem yuav muaj qee cov khoom ntxiv xws li surfactants thiab hydrophobic silica hais

Cov surfactants nyob rau hauv cov roj ntxhia - raws li defoamers pab txo qhov nro ntawm cov roj ntxhia, ua kom nws kis tau ntawm cov npuas dej zoo dua, thaum cov khoom siv hydrophobic silica tuaj yeem cuam tshuam rau cov yeeb yaj kiab ua npuas ncauj.

Cov khoom

Mineral roj - raws li defoamers yog cov mos mos hauv kev ua haujlwm thiab tsim nyog rau cov ntawv thov uas lub cev muaj zog - ua yeeb yam defoamers.

Lawv feem ntau siv rau hauv cov khoom noj - ntsig txog kev lag luam vim tias lawv feem ntau suav tias muaj kev nyab xeeb rau kev sib cuag nrog cov khoom noj.

Txawm li cas los xij, lawv cov defoaming efficiency yuav qis dua piv rau cov organic silicon thiab qee cov polyether defoamers hauv qee kis.

Ntuj - Khoom - Raws li Defoamers

Kev sib xyaw thiab cov qauv

Ntuj - khoom - raws li defoamers yog muab los ntawm tej qhov chaw xws li cov nroj tsuag rho tawm (xws li, zaub roj) thiab tsiaj rog. Piv txwv li, qee qhov defoamers yog tsim los ntawm cov taum roj los yog cov roj castor.

Cov khoom ntuj no muaj fatty acids thiab esters, uas tuaj yeem cuam tshuam nrog ua npuas ncauj kom ua tiav cov teebmeem defoaming.

Cov khoom

Lawv yog biodegradable, uas yog qhov zoo dua hauv cov ntawv thov uas ib puag ncig tus phooj ywg muaj kev txhawj xeeb, xws li hauv qee qhov kev kho dej khib nyiab.

Lawv kuj feem ntau tsis muaj tshuaj lom thiab tuaj yeem siv rau hauv cov ntawv thov kev sib cuag nrog cov kab mob nyob lossis ib puag ncig koom nrog. Tab sis lawv qhov kev ua tau zoo tuaj yeem cuam tshuam los ntawm yam xws li qhov zoo thiab keeb kwm ntawm cov khoom siv raw.

Kev siv ntawm Defoamers

Hauv Kev Lag Luam Khoom Noj

Haus dej ntau lawm

Hauv kev tsim cov dej haus carbonated, ua npuas dej tuaj yeem ua rau muaj teeb meem thaum lub raj mis thiab ntim khoom. Defoamers tau ntxiv los tswj cov npuas dej, ua kom cov txheej txheem du. Piv txwv li, polyether defoamers los yog ntxhia roj - raws li defoamers feem ntau siv raws li lawv muaj kev nyab xeeb rau kev sib cuag zaub mov.

Hauv kev lag luam brewing, kev tswj ua npuas dej kuj tseem ceeb heev. Thaum lub sij hawm fermentation txheej txheem ntawm npias, ntau ua npuas ncauj yuav ua rau poob ntawm raw cov ntaub ntawv thiab cuam tshuam rau fermentation ib puag ncig. Organic silicon defoamers qee zaum siv rau theem tsim nyog los tswj cov npuas dej tsis muaj kev cuam tshuam rau saj thiab zoo ntawm npias.

Kev ua zaub mov

Hauv kev tsim cov khoom siv mis nyuj xws li mis hmoov, ua npuas dej tuaj yeem tshwm sim thaum lub sij hawm evaporation thiab tshuaj tsuag - ziab txheej txheem. Defoamers pab txhim kho kev ua haujlwm ntawm cov txheej txheem no thiab xyuas kom meej qhov zoo ntawm cov khoom kawg. Ntuj - khoom - raws li defoamers yog nyiam nyob rau hauv ib co khoom siv mis nyuj vim lawv tej yam ntuj tso thiab tsis muaj tshuaj lom zog.

Hauv Chemical Industry

Xim thiab Txheej Manufacturing

Ua npuas ncauj hauv cov xim tuaj yeem ua rau muaj qhov tsis xws li pinholes thiab craters ntawm cov xim pleev xim. Organic silicon defoamers tau dav siv hauv cov xim pleev xim vim lawv tuaj yeem tshem tawm cov npuas dej zoo thaum sib tov, khaws cia, thiab siv cov xim. Lawv qhov kub thiab txias kuj tseem muaj txiaj ntsig zoo thaum cov xim raug kho ntawm qhov kub thiab txias

Hauv kev tsim cov nplaum, cov defoamers tau ntxiv los tiv thaiv kev ua npuas ncauj, uas tuaj yeem cuam tshuam rau kev sib txuas ntawm lub zog thiab qhov zoo ntawm cov nplaum. Polyether defoamers feem ntau yog siv los ua cov nplaum nplaum vim lawv cov solubility zoo thiab tus nqi - kev ua tau zoo.

Cov txheej txheem Petrochemical

Hauv cov roj refining, ua npuas ncauj tuaj yeem tsim thaum lub sijhawm ua haujlwm xws li distillation thiab tawg. Organic silicon defoamers yog siv los tswj ua npuas ncauj, raws li lawv tuaj yeem tiv taus qhov kub thiab txias thiab hnyav hnyav nyob rau hauv lub refinery. Lawv pab txhim kho kev ua haujlwm ntawm cov txheej txheem sib cais thiab tiv thaiv cov khoom siv fouling los ntawm ua npuas ncauj

Hauv Kev Lag Luam Textile

Dyeing thiab Finishing

Thaum lub sij hawm dyeing txheej txheem ntawm textiles, ua npuas ncauj tuaj yeem tiv thaiv kev nkag mus ntawm cov xim tsis sib xws, ua rau cov xim tsis sib xws. Defoamers tau ntxiv rau hauv da dej zas kom tshem tawm ua npuas ncauj. Mineral roj - raws li defoamers feem ntau yog siv raws li lawv tuaj yeem ua haujlwm zoo hauv cov tshuaj dyeing aqueous thiab tsis cuam tshuam cov xim ntawm cov dyed textiles.

Hauv cov txheej txheem textile tiav, xws li daim ntawv thov ntawm softeners thiab dej - repellent kev kho mob, ua npuas ncauj tswj kuj tseem ceeb heev. Polyether defoamers tuaj yeem siv los xyuas kom meej daim ntawv thov du ntawm cov neeg ua haujlwm tiav

Hauv Kev Kho Dej Khov Kev Lag Luam

Activated Sludge txheej txheem

Hauv cov chaw kho dej khib nyiab uas siv cov txheej txheem activated sludge, ua npuas dej feem ntau tshwm sim vim muaj cov surfactants thiab cov organic teeb meem hauv cov dej khib nyiab. Ntuj - khoom - raws li defoamers los yog polyether defoamers yog siv los tswj ua npuas ncauj. Ntuj - khoom - raws li defoamers yog nyiam vim hais tias ntawm lawv biodegradability, uas yog nyob rau hauv txoj kab nrog ib puag ncig - tus phooj ywg yuav tsum tau ntawm kev kho dej khib nyiab.

Cov defoamers pab tswj kev ua haujlwm zoo ntawm cov txheej txheem kho, tiv thaiv cov dej ntws tawm ntawm cov tso tsheb hlau luam, thiab txhim kho kev kho cov dej khib nyiab.