Dab tsi yog qhov silicone defoamer
Silicone defoamer yog dawb viscous emulsion. Nws tau siv ntau yam kev lag luam txij li xyoo 1960, tab sis nws qhov kev loj hlob thiab kev loj hlob sai tau pib thaum xyoo 1980s. Raws li hom silicone defoamer, nws nyiam ntau yam kev siv thiab tau txais kev nyiam los ntawm txhua qhov kev lag luam. Hauv kev lag luam kev lag luam xws li chemical engineering, papermaking, coatings, food, textiles, and pharmaceuticals, silicone defoamer yog ib qho tseem ceeb ntxiv rau hauv cov txheej txheem tsim khoom. Nws tuaj yeem tsis tsuas yog tshem tawm cov npuas dej ntawm cov txheej txheem kev tshaj tawm thaum lub sijhawm tsim khoom, tab sis kuj tseem txhim kho kev sib cais, vaporization, thiab cov kua dej ntws tawm hauv kev pom, ntxuav, tshem tawm, distillation, evaporation, lub cev qhuav dej, ziab, thiab lwm yam txheej txheem, kom ntseeg tau tias lub peev xwm zoo ntawm cov ntim khoom khaws cia thiab kho.
Txij li thaum tau txais cov defoamers, cov tuam ntxhab tau pom sai sai tias qhov ua tau zoo thiab kev ua haujlwm tau zoo tau zoo dua qub piv nrog yav dhau los. Silicone defoamer tuaj yeem tshem tawm cov npuas hauv cov kua tawm sai sai, yog li nws tau nce thiab siv dav hauv ntau qhov kev lag luam hauv xyoo tas los no.
Npuas muaj nyob rau hauv lub neej txhua hnub, tab sis thaum muaj coob tus npuas sib sau ua ke thiab faib tsis tu ncua nyob rau hauv cov kua, lawv tsim ua npuas ncauj. Ua npuas ncauj ntau dhau hauv lub neej niaj hnub thiab kev tsim khoom tsis tsuas yog cuam tshuam kev ua haujlwm ib txwm muaj tab sis kuj ua rau qee qhov kev ua qias tuaj, yog li kev tshem tawm npuas yog qhov tsim nyog heev. Feem ntau, kom ua tiav sai defoaming, feem ntau cov lag luam ntxiv defoamers. Txij li thaum muaj ntau hom defoamers, kuv yuav coj silicone defoamer ua piv txwv los piav qhia nws cov txheej txheem defoaming thiab txoj hauv kev ua haujlwm.
Silicones muaj qhov ntom ntom ntom ntom. Thaum cov defoamers ua los ntawm silicones ntxiv rau lub tshuab ua npuas dej, lawv tuaj yeem tawg tau sai. Surfactant molecules yog taw qhia rau ntawm npuas nto. Thaum cov silicone defoamer nce mus txog ib qho concentration thiab muaj cov molecules txaus surfactant, ib daim ntawv nyias nyias ntawm phab ntsa npuas thiab txo nws qhov nro, yog li ua rau cov roj ntau ntxiv -kua thaj chaw. Yog li ntawd, cov npuas tsim muaj tsawg dua yuav coalesce thiab tawg.
Txij li thaum npuas zaj duab xis raug rau huab cua muaj ib tug bimolecular zaj duab xis qauv, tshem tawm ua npuas ncauj yuav tsum rhuav tshem thiab inhibiting tsim ntawm cov zaj duab xis ntawm roj thiab kua. Yog li ntawd, ntxiv silicone defoamer yuav tsum kis tau sai sai rau ntawm qhov chaw daws teeb meem, nkag mus rau cov yeeb yaj kiab bimolecular ntawm cov npuas dej, thiab rhuav tshem cov khoom sib npaug ntawm cov yeeb yaj kiab kom ua tiav defoaming.
Rau cov organic tebchaw zoo tib yam, qhov sib kis coefficient tsawg heev thiab lawv yog cov tshuaj inert. Yog li, cov roj silicone ntshiab tsis tuaj yeem siv ua defoamer. Txawm li cas los xij, tom qab emulsification los tsim ib lub silicone defoamer, nws tuaj yeem kis tau sai heev ntawm qhov kev daws teeb meem thiab ua tiav qhov kev ua tau zoo defoaming nrog cov tshuaj tsawg.
