Ib. Dab tsi yog defoamer
Defoaming tus neeg saib xyuas yog ib hom ua npuas ncauj tus neeg sawv cev uas tuaj yeem tiv thaiv lossis tshem tawm cov npuas yas los ntawm cov yas ua npuas dej. Tam sim no, defoamers twb tau siv rau ntau yam, suav nrog ntau yam khoom noj, txawm hais tias tam sim no kev txhim kho thev naus laus zis tau nrawm heev, defoaming pab tsim thiab siv cov tshuaj tua kab tau ntev tau xav txog kev tiv thaiv ib puag ncig.
Ob. Dab tsi yog qhov ua haujlwm ntawm defoamer
Defoamer yog ib yam khoom siv tshwj xeeb los txo lossis tshem tawm npuas hauv cov kua. Nws lub luag haujlwm tseem ceeb yog cuam tshuam nrog cov hauv qab no:
1. Kev tswj ua npuas dej: Hauv cov txheej txheem tsim khoom, xws li tshuaj lom neeg, tshuaj, khoom noj khoom haus thiab lwm yam kev lag luam, ua npuas ncauj ntau dhau yuav cuam tshuam rau kev tsim khoom, cov khoom zoo thiab kev nyab xeeb. Defoamers tuaj yeem txo qhov nro ntawm cov kua, ua kom cov npuas ruaj khov, thiab yog li tswj cov khoom ua npuas ncauj.
2. Kev tshem tawm ua npuas ncauj: thaum muaj ntau cov npuas dej hauv cov kua, cov defoamer tuaj yeem sai sai diffuse mus rau saum npoo ntawm npuas, hloov lub cev thiab tshuaj lom neeg ntawm cov npuas, ua kom lub rupture thiab dissipation ntawm cov npuas dej, pab tau. restore lub qub xeev ntawm cov kua, thiab txhim kho stability thiab efficiency ntawm cov txheej txheem.
3. Kev hloov kho qhov nro: Defoamers tuaj yeem kho qhov nro ntawm cov kua kom ua tau raws li cov txheej txheem tshwj xeeb, txhim kho cov kua dej, thiab hloov mus rau cov xwm txheej sib txawv.
4. Tiv thaiv kom tsis txhob muaj roj ntau dhau: Qee zaum, npuas lossis npuas dej hauv cov kua yuav ua rau muaj roj ntau dhau. Defoamers tuaj yeem tiv thaiv cov roj ntau dhau, tswj cov kua dej ruaj khov, txo cov pa tso tawm, zam cov dej khib nyiab thiab cov txheej txheem cuam tshuam.
Peb. Lub hauv paus ntsiab lus ntawm defoamer
1. Lub hauv paus nto nro ntawm cov npuas dej txo qis, ua rau cov npuas dej tawg
Lub hauv paus chiv keeb ntawm cov txheej txheem no yog tias thaum haus dej cawv lossis zaub roj yog txau rau ntawm lub npuas dej, thaum nws yaj hauv cov dej ua npuas dej, qhov nro ntawm qhov chaw yuav txo qis. Vim yog qhov tsis tshua muaj solubility ntawm cov tshuaj no hauv dej, qhov txo qis ntawm qhov nro yog txwv rau ib feem ntawm cov npuas dej, thaum nyob ib puag ncig ua npuas ncauj qhov nro saum npoo tseem yuav luag tsis hloov. Ib feem nrog txo qhov nro yog quab yuam rub thiab txuas mus rau txhua qhov kev qhia, thiab tom qab ntawd tawg.
2. Defoamers tuaj yeem ua rau lub elasticity ntawm daim nyias nyias, ua rau npuas tawg
Thaum defoamer ntxiv rau hauv lub tshuab ua npuas dej, nws yuav diffuse rau cov roj-kua interface, ua rau nws nyuaj rau surfactant nrog npuas stabilizing nyhuv kom rov qab tau cov mos mos ntawm daim nyias nyias.
3. Defoamers tuaj yeem txhawb nqa cov yeeb yaj kiab ua kua, ua rau npuas tawg
Qhov pom tus nqi ntawm cov npuas dej tuaj yeem cuam tshuam qhov kev ruaj ntseg ntawm cov npuas dej, thiab qhov sib ntxiv ntawm cov khoom siv kom nrawm nrawm ntawm cov npuas dej kuj tuaj yeem ua lub luag haujlwm hauv defoaming siv nws.
4. Ntxiv cov khoom hydrophobic tuaj yeem ua rau npuas tawg
Cov khoom siv hydrophobic nyob rau saum npoo ntawm cov npuas nyiam qhov kawg ntawm cov surfactant, ua rau cov hydrophobic hais hydrophilic thiab nkag mus rau theem aqueous, yog li tshem tawm.
Hauv cov ntsiab lus, defoamers ua lub luag haujlwm tseem ceeb hauv kev tsim khoom lag luam. Lawv tsis tsuas yog txhim kho kev tsim khoom thiab ua kom cov khoom zoo, tab sis kuj ua kom muaj kev ruaj ntseg thiab kev nyab xeeb ntawm cov txheej txheem. Txawm li cas los xij, kev lag luam sib txawv thiab daim ntawv thov scenarios xav tau kev xaiv cov defoamers tsim nyog los siv lawv cov txiaj ntsig zoo.
