Peb cov khoom tseem ceeb: block silicone, hydroxilic silicone, carbon monoxent (fluorone, Uzbekistan, thiab lwm yam, ntau yam ntxiv thov hu rau: Mandy +86 19856618619 (WhatsApp)

 

Cov teeb meem ua npuas ncauj hauv kev kho dej tau ua rau muaj ntau tus neeg. Nyob rau ntawm thawj theem ntawm commissioning, ua npuas ncauj, surfactant ua npuas dej, ua npuas ncauj, yog li siv ntawm defosamer hauv kev kho dej yog sib xws. Cov lus qhia no nkag siab txog lub hauv paus ntsiab lus no, kev faib tawm, xaiv thiab muab tshuaj defoamer!

★ Tshem tawm ntawm npuas ua npuas ncauj

1. Kev Siv Lub Cev

Los ntawm lub cev pom, cov hau kev los tshem tawm cov npaus lossis cov cua sov, cov pa hluav taws xob, ntsuas hluav taws xob siab, nrawm thiab ultrasonic (acoustic tswj kev tswj). Cov hau kev no txhua txhawb nqa cov nyiaj sib kis hauv ob qho tib si ntawm cov yeeb yaj kiab kua thiab ua kua rau ntawm cov ua npuas dej tsawg dua qhov ua kom ua npuas ncauj txo qis. Txawm li cas los xij, qhov tsis zoo ntawm cov hau kev no yog lawv tau txwv tsis pub los ntawm ib puag ncig cov khoom thiab muaj tus nqi qis. Qhov zoo yog kev tiv thaiv ib puag ncig thiab siv tus nqi rov siv dua.

2. Tshuaj lom neeg

Cov qauv siv tshuaj los tshem cov npuas dej tsuas yog suav nrog kev siv tshuaj lom neeg thiab ntxiv defosamer.

Cov tshuaj tiv thaiv kev siv tshuaj yog hais txog kev siv tshuaj lom neeg los ntawm kev ua npuas dej los ntawm kev ua npuas ncauj los ntawm cov kua txiv tsis muaj kua thiab txhawb kom ua npuas ncauj. Txawm li cas los xij, hom no muaj qee qhov tsis txaus ntseeg, xws li qhov tsis paub txog cov neeg sawv cev ua npuas ncauj thiab cov teeb meem ntawm insoluble cov khoom mus rau cov khoom siv. Qhov feem ntau dav siv defoaming txoj kev nyob rau hauv ntau yam kev lag luam tam sim no yog txoj kev ntawm kev ntxiv defoamers. Qhov txiaj ntsig loj tshaj plaws ntawm cov qauv no yog nws qhov kev tiv thaiv kev ua haujlwm siab thiab yooj yim ntawm kev siv. Txawm li cas los xij, nrhiav qhov haum thiab ua tau zoo defoamer yog tus yuam sij.

Txoj cai ntawm defoober

Defoamers, tseem hu ua defoamers, muaj cov ntsiab cai hauv qab no:

1. Lub tshuab ua npuas ncauj ntawm cov roj ua npuas ncauj yog tias haus dej haus kom ntau dua yog cov roj ua npuas dej, thiab thaum muaj cov roj ntsha ua npuas dej, thiab ua npuas ncauj npoo yuav raug txo qis. Vim tias cov tshuaj no feem ntau muaj solubility uas tsis muaj dej, txo qis ntawm cov chaw ua npuas dej yog txwv rau lub zos ua npuas ncauj, thaum lub zos nro ib ncig ntawm ua npuas ncauj yuav luag tsis muaj kev hloov pauv. Qhov nrog txo thaj chaw nruj yog cov kev rub tawm thiab txuas ntxiv rau txhua cov lus qhia, thiab thaum kawg tawg.

2. Kev rhuav tshem ntawm daim nyias nyias muaj kev phom sij ua rau cov khoom siv npuas, ua rau cov khoom siv ua npuas dej, ua rau lub zog ua npuas ncauj

3. Txhawb nqa cov yeeb yaj kiab ua kua dej tuaj yeem txhawb nqa cov txiv plig yeeb yaj kiab, yog li ua rau cov npuas ua kom tawg. Cov npuas dej ntws tawm tuaj yeem cuam tshuam qhov ruaj khov ntawm ua npuas ncauj. Ntxiv cov tshuaj uas ua kom nrawm ua npuas dej ntws tuaj yeem ua lub luag haujlwm hauv kev defoaming.

4. Ntxiv hydrophobic cov khoom muaj tuaj yeem ua npuas kom tawg rau saum npoo ntawm npuas. Hydrophobic cov khoom ua kom nyiam lub hydrophobic kawg ntawm surfactant, ua rau hydrophobic statles hydrophilic thiab nkag mus rau theem dej, yog li ua lub luag haujlwm hauv defoaming.

5. Solubilizing thiab foaming surfactants tuaj yeem ua rau cov npuas tawg. Qee cov tshuaj hnyav me me uas tuaj yeem sib xyaw nrog cov tshuaj muaj peev xwm solfolilize surfactant thiab txo nws cov kev xav tau zoo. Tsawg cov tshuaj molecular nrog cov nyhuv qis nrog cov nyhuv tsawg, ethanol, propanol thiab lwm yam kev sib xyaw ntawm surfactant molecules, yog li tsis muaj zog qhov kev ruaj khov ntawm ua npuas ncauj.

6.electrolyte sursactant ob npaug hluav taws xob txheej ua ke lub luag haujlwm ntawm surfactant ob npaug hluav taws xob txheej nrog ua npuas dej los tsim cov khoom ua npuas ncauj ruaj khov. Ntxiv electrolyte tuaj yeem ua rau lub surfactant ob npaug hluav taws xob txheej.

★ Kev Sib Tham ntawm Defoamers

Cov nquag siv defoamers tuaj yeem faib ua silicone (cobqab), surfactant, alkane, thiab ntxhia, thiab cov ntxhia roj raws li lawv muaj pes tsawg leeg.

1. Silicone (Resin) Defoamers, tseem hu ua emulsion defoamers, yog siv los ntawm emulsifiers (surfactants) hauv dej ua ntej ntxiv nws kom dej khib nyiab. Silicon Dioxide nplua hmoov yog lwm hom silicon-based defoamer nrog cov nyhuv zoo dua.

2. Tse selfactants xws li emulsifiers yog qhov tseeb emulsifiers, uas yog, lawv siv cov disammorts hauv lub xeev ruaj khov hauv dej, thiaj li kom zam dhau kev tsim ua npuas ncauj.

3. Alkane raws defoamers yog defoamers ua los ntawm emulsifying thiab dispersing paraffin ciab lossis nws cov derivatives siv emulsifiers. Lawv siv yog zoo ib yam li surfactant raws emulsifying defoamers.

4.Mineral Roj yog lub tseem ceeb defoaming tivthaiv. Txhawm rau txhim kho cov nyhuv, qee zaum cov xab npum hlau, silicone roj, silica thiab lwm yam tshuaj uas tau sib xyaw ua ke rau kev siv. Ib qho ntxiv, ntau yam surfactants tuaj yeem qee zaum ntxiv rau pab txhawb cov kev daws teeb meem ntawm cov npuas dej los yog rau cov ntaub sofane dua hlau thiab lwm yam tshuaj hauv cov roj ntxhia.
★ Qhov zoo thiab qhov tsis zoo ntawm ntau hom ntawm defoamers

Cov kev tshawb fawb thiab kev thov ntawm cov organic tiv thaiv xws li cov roj av ntxhia, cov roj ntsha, cov roj ntsha, cov roj ntsha thiab cov roj ntsha esters, thiab lwm yam rau thawj tiam ntawm kev tiv thaiv kev tiv thaiv. Lawv muaj cov txiaj ntsig ntawm kev yooj yim muaj ntawm cov khoom raw, cov nqi ib puag ncig ib puag ncig, thiab cov nqi ntau lawm; Qhov tsis zoo yog qhov tsawg defoaming efficiency, muaj zog tshwj xeeb, thiab kev siv hnyav.

Polyether Defoamers yog thib ob-tiam defoamers, tsuas yog suav nrog cov polyethers ncaj, polyeters pib dej cawv lossis ammether derivatives nrog pab pawg Esterification. Qhov txiaj ntsig loj tshaj plaws ntawm polyether defoamers yog lawv cov zog tiv thaiv foaming muaj peev xwm. Tsis tas li ntawd, qee qhov kev tiv thaiv polyets kuj muaj cov khoom zoo xws li kub siab tiv taus, cov kua qaub muaj zog acid thiab alkali tsis kam; Qhov tsis zoo yog txwv los ntawm qhov ntsuas kub, nqaim daim ntawv thov, tsis zoo defoaming muaj peev xwm, thiab tus cawv bubble tsawg.

Organic silicone defoamers (thireve profoamers) tau muaj zog defoaming muaj peev xwm, tsis muaj tshuaj lom rau ib puag ncig, thiab muaj kev siv ntau yam. Yog li ntawd, lawv muaj qhov dav thov cov zeem muag thiab kev ua lag luam loj loj, tab sis lawv defoaming kev ua tau zoo.

Polyether hloov polysiloxane tiv thaiv qhov zoo ntawm ob leeg selcoamers thiab orgysilic defoamers, thiab yog txoj kev loj hlob ntawm defoamers. Qee lub sij hawm nws tuaj yeem siv tau raws li nws rov qab ua solubility, tab sis tam sim no muaj qee cov kev tshawb fawb thiab lawv tseem nyob rau theem kev tsim kho, ua rau muaj cov nqi tsim khoom siab.

★ Xaiv Defoamers

Kev xaiv ntawm defoamers yuav tsum ua kom tau raws li cov qauv hauv qab no:

1. Yog tias nws yog insoluble lossis insoluble hauv kev ua npuas dej, nws yuav tsoo lub npaus. Tus defoamer yuav tsum muaj cov yeeb yaj kiab ua npuas ncauj. Rau kev tiv thaiv, lawv yuav tsum muaj cov pwm thiab muaj lub ntsej muag ua ntej, thaum lawv tau khaws cia hauv lub xeev tsis tu ncua. Yog li defoamers nyob rau hauv lub xeev supersaturated hauv foaming kua, thiab tsuas yog insoluble lossis tsis zoo soluble sawv daws yuav nquag mus txog supersaturation. Insoluble lossis nyuaj rau yaj, nws yog ib qho yooj yim los ua kev sib sau ua ke ntawm cov kua roj ua kua, yooj yim kom ua haujlwm ntawm cov khoom qis dua. Tus defosamer siv nyob rau hauv cov dej tshuab, yuav tsum muaj zog hydrophobic thiab qaug zog hydrophilic, nrog tus nqi HLB, nrog tus nqi HLB hauv thaj tsam 1.5-3 rau qhov zoo tshaj plaws.

2. Lub npoo sab nro yog qis dua li ntawm cov ua npuas dej, thiab tsuas yog ua kom muaj cov npuas dej, thiab cov khoom siv tsis zoo yog qhov nkag mus thiab nthuav dav ntawm cov yeeb yaj kiab ua npuas ncauj. Nws yog tsim nyog sau cia tias qhov nro muaj kev ntxhov siab tsis yog qhov kev ntxhov siab ntawm txoj kev daws teeb meem, tab sis cov npoo nro ntawm cov tshuaj foaming.

3. Muaj ib qho degree ntawm kev sib txawv nrog cov ua npuas dej. Raws li cov txheej txheem defoaming yog qhov kev sib tw yog qhov sib tw ntawm cov ua npuas ncauj sib tsoo thiab ua npuas ncauj yuav tsum tau nrawm nrawm mus ua cov khoom siv dav dav. Txhawm rau ua kom cov defoamer diffuse sai sai, cov nquag muaj cov tshuaj tiv thaiv ntawm defosamer yuav tsum muaj qee qib ntawm kev ua npuas ncauj. Cov khoom xyaw nquag ntawm defoamers yog ib yam nkaus thiab ze rau cov kua dej ua npuas thiab yuav yaj; Dhau kev sib xws thiab tsis yooj yim rau disperse. Tsuas yog thaum muaj kev sib raug zoo yog qhov tsim nyog tuaj yeem ua tau zoo yog qhov zoo.

4. Tiv Thaiv Tsis Taug Kev Tsis Txaus Siab nrog cov kua ua npuas dej. Thaum defoamers hnov ​​cov ua npuas dej, lawv poob cov txiaj ntsig thiab yuav tsim cov tshuaj muaj teeb meem uas cuam tshuam rau microbial kev loj hlob.

5.Lov volatility thiab ntev ntev ntawm kev txiav txim. Firstly, nws yog qhov yuav tsum tau txiav txim siab seb lub kaw lus uas yuav tsum tau siv cov tshuaj tiv thaiv yog dej los yog roj. Hauv kev lag luam fermentation kev lag luam, cov roj defoamers xws li polyether hloov pauv silicone lossis polyether raws li yuav siv. Kev lag luam dej raws li dej yuav tsum muaj cov dej tsis kam ua haujlwm thiab cov organic silicon defoamers. Xaiv cov defoamer, piv tus nqi ntxiv, thiab raws li tus nqi siv, txiav txim siab cov khoom lag luam txaus siab thiab kev lag luam tsis zoo tshaj plaws thiab kev lag luam txaus siab tshaj plaws.

★ yam cuam tshuam rau kev ua haujlwm ntawm defosamer siv

1. Qhov Dispersibility thiab cov khoom ntawm defoamers hauv kev daws teeb meem tseem ceeb rau lwm cov khoom tiv thaiv. Defoamers yuav tsum muaj cov degree tsim nyog ntawm kev dispersion, thiab hais tias yog loj dhau los yog me me nyob rau hauv loj me tuaj yeem cuam tshuam lawv defoaming kev ua si.

2. Kev sib xyaw ntawm Defoamer hauv cov txheej txheem ua npuas ncauj thaum lub surfactant yog tag nrho cov tshuaj cuam tshuam rau cov roj-ua npuas ncauj kom ua npuas ncauj. Thaum lub surfactant yog nyob rau hauv insoluble los yog supersaturated xeev, sau ua npuas ncauj, thiab ua npuas ncauj ua raws li defosamer.

3. Qhov kub thiab txias ntawm cov foaming system thiab ntsuas kub ntawm cov ua npuas dej kuj tseem tuaj yeem cuam tshuam kev ua haujlwm ntawm defosamer. Thaum qhov kub ntawm cov foaming kua nws tus kheej yog qhov zoo tshaj plaws, vim tias yog tias cuam tshuam kub tshwj xeeb yuav tsum tau txo qis, thiab defosamer yuav cuam tshuam ncaj qha rau lotion.

4. Lub ntim, cia, thiab tsheb thauj mus los ntawm Defloamers yog qhov tsim nyog rau kev cia khoom ntawm 5-35 ℃, thiab lub txee lub neej feem ntau yog 6 lub hlis. Tsis txhob tso nws nyob ze rau ntawm qhov chaw kub lossis ua rau nws ua tshav ntuj. Raws li cov txheej txheem siv tshuaj lom neeg siv, xyuas kom muaj kev sib khi tom qab siv kom tsis txhob ua kom tsis txhob muaj zog.

6.Qhov kev sib ntxiv ntawm defoamers rau cov kev daws teeb meem thiab diluted daws tau qee qhov kev sib txawv rau qee yam, thiab tus piv tsis sib npaug. Vim tias qhov qis dua ntawm surfactant, qhov diluted defoamer appion yog tsis ruaj khov thiab yuav tsis delegate sai sai. Qhov defoaming kev ua tau zoo kuj tsis yog neeg pluag, uas tsis haum rau lub sijhawm ntev cia. Nws raug nquahu kom siv tam sim ntawd tom qab dilution. Qhov kev faib ua feem ntawm defoamer tau txais txiaj ntsig los ntawm kev kuaj ntawm qhov chaw ntawm sab hauv tsev kom ntsuas nws cov hauj lwm zoo, thiab yuav tsum tsis txhob muaj ntau dhau.

★ Qhov ntau npaum li cas ntawm defoamer

Muaj ntau hom kev tiv thaiv, thiab cov tshuaj yuav tsum tau rau ntau hom ntawm defoamers sib txawv. Hauv qab no, peb yuav qhia ntau npaum li cas ntawm 6 hom ntawm defoamers:

1. Thaum siv dej cawv: Thaum siv cawv quav cawv, qhov ntau npaum li cas feem ntau tsis pub dhau 0.01-0.10%.

2. Cov roj raws li defoamers: tus nqi ntawm cov roj raws li kev tiv thaiv tau ntxiv ntawm 0.05-2%, thiab tus nqi ntawm cov roj fatty acid istoamers ntxiv yog ntawm 0.002-0.2%.

3. AMIDE Defoamers: Amide defoamers muaj cov nyhuv zoo dua, thiab qhov kev sib ntxiv feem ntau tsis pub dhau 0.002-0.005%.

4. Phosphoric acid defoamer: phosphoric acid defoamers yog feem ntau siv hauv fibers thiab lubricating roj, nrog ib tus nqi ntxiv ntawm 0.0.25%.

5. Amine defoamer: Amine defoamers yog siv hauv fiber ntau, nrog ib tus nqi ntxiv ntawm 0.02-2%.

7.ETHETE FENCENDERS: ether raws refloamers yog feem ntau siv rau hauv ntawv luam ntawv, zas thiab ntxuav, nrog ib qho koob tshuaj ntawm 0.0.25%.