1. Cov khoom siv emulsification Cov cuab yeej siv rau kev npaj emulsion feem ntau yog emulsifier, uas yog ib hom khoom siv emulsification uas sib tov roj thiab dej sib npaug. Tam sim no, muaj peb yam tseem ceeb ntawm emulsifiers: emulsification tov khoom, colloid zeb thiab homogenizer. Hom, qauv thiab kev ua tau zoo ntawm emulsifier muaj kev sib raug zoo nrog qhov loj me (dispersibility) ntawm emulsion hais thiab qhov zoo (kev ruaj ntseg) ntawm emulsion. Feem ntau, xws li nplawm emulsifier uas tseem siv dav hauv cov chaw tsim tshuaj pleev ib ce, cov emulsion npaj tau tsis zoo dispersibility. Cov khoom yog loj thiab ntxhib, tsis ruaj khov, thiab yooj yim rau kev sib kis. Txawm li cas los xij, nws cov khoom siv yog qhov yooj yim thiab tus nqi pheej yig. Tsuav koj xaiv cov qauv tsim nyog ntawm lub tshuab thiab siv nws kom zoo, nws tuaj yeem tsim cov tshuaj pleev ib ce nrov nrog cov kev xav tau zoo sib xws. Nyob rau hauv xyoo tas los no, Nqus Tov Khoom Homogenizer tsim tau ua tau zoo, thiab emulsion npaj los ntawm Nqus Tov Khoom Homogenizer tsim tau zoo heev dispersibility thiab stability.
2. Kub Kub Lub emulsification kub muaj qhov cuam tshuam zoo rau qhov zoo ntawm emulsification, tab sis tsis muaj kev txwv nruj rau qhov kub thiab txias. Yog tias cov roj thiab dej yog ob qho tib si ua kua, emulsification tuaj yeem ua tiav los ntawm kev nplawm ntawm chav tsev kub. Feem ntau, qhov kub ntawm emulsification nyob ntawm lub melting point ntawm high-melting tshuaj muaj nyob rau hauv ob theem, thiab kuj txiav txim siab yam xws li hom emulsifier thiab solubility ntawm cov roj theem thiab cov dej theem. Tsis tas li ntawd, qhov kub ntawm ob theem yuav tsum tau khaws cia ze li qub, tshwj xeeb tshaj yog rau cov wax thiab roj theem Cheebtsam nrog cov ntsiab lus melting ntau dua (siab dua 70 ° C), thaum emulsification, qhov kub tsis tshua muaj dej theem tsis tuaj yeem ntxiv los tiv thaiv cov wax, Fat crystallizes tawm, ua rau lumpy los yog ntxhib, tsis sib xws emulsions. Feem ntau hais lus, thaum lub sij hawm emulsification, qhov kub ntawm cov roj thiab dej theem tuaj yeem tswj tau ntawm 75 ° C thiab 85 ° C. Yog hais tias cov roj theem muaj cov melting point wax thiab lwm yam khoom, lub emulsification kub yuav siab dua nyob rau lub sij hawm no. Tsis tas li ntawd, yog tias cov viscosity nce siab heev thaum lub sij hawm emulsification txheej txheem, qhov thiaj li hu ua tuab heev thiab cuam tshuam rau kev nplawm, qhov kub ntawm emulsification tuaj yeem tsim nyog. Yog hais tias lub emulsifier siv muaj qee theem inversion kub, emulsification kub kuj zoo dua xaiv nyob ib ncig ntawm theem inversion kub. Lub emulsification kub kuj qee zaum muaj kev cuam tshuam rau qhov loj me me ntawm emulsion. Piv txwv li, thaum lub fatty acid xab npum anionic emulsifier yog siv rau emulsification los ntawm cov thawj xab npum txoj kev, thaum lub emulsification kub yog tswj ntawm 80 ° C, particle loj ntawm emulsion yog hais txog 1.8-2.0 μm. Yog tias emulsification tau ua tiav ntawm 60 ° C, qhov loj me yog li 6 μm. Thaum emulsified nrog nonionic emulsifiers, cov nyhuv ntawm emulsification kub ntawm particle loj yog qaug zog.
3. Emulsification lub sij hawm ntawmLub tshuab nqus tsev tov khoom Homogenizertsim Lub sij hawm emulsification pom tseeb muaj kev cuam tshuam rau qhov zoo ntawm emulsion, thiab kev txiav txim siab ntawm lub sij hawm emulsification yog raws li qhov ntim piv ntawm cov roj theem thiab cov dej theem, viscosity ntawm ob theem thiab viscosity ntawm cov emulsion tshwm sim. , hom thiab tus nqi ntawm cov emulsifier, Kuj tseem muaj emulsification kub, tab sis lub sij hawm emulsification yog ua kom lub cev tag nrho. emulsified, uas yog ze ze rau kev ua haujlwm ntawm cov khoom siv emulsification. Lub sijhawm emulsification tuaj yeem txiav txim siab raws li kev paub thiab kev sim. Yog tias homogenizer (3000 rpm) siv rau emulsification, nws tsuas siv 3-10 feeb.
4. Stirring speed Emulsification khoom muaj kev cuam tshuam zoo rau emulsification, ib qho ntawm cov nyhuv ntawm stirring ceev ntawm emulsification. Lub stirring ceev yog nruab nrab kom cov roj theem thiab cov dej theem sib tov tag nrho, thiab lub stirring ceev yog siab dhau.
5. stirring ceev ntawmLub tshuab nqus tsev tov khoom Homogenizer tsim muaj kev cuam tshuam zoo ntawm emulsification, ib qho ntawm cov kev cuam tshuam ntawm stirring ceev ntawm emulsification. Qhov nruab nrab stirring ceev yog ua kom cov roj theem thiab cov dej theem sib tov tag nrho. Yog hais tias lub stirring ceev yog tsawg heev, lub hom phiaj ntawm tag nrho nws yuav pom tseeb tsis tiav. Txawm li cas los xij, yog tias qhov sib tov ceev heev, huab cua npuas yuav raug coj mus rau hauv qhov system, ua rau nws muaj peb-theem system. Ua rau emulsions tsis ruaj khov. Yog li ntawd, qhov nkag ntawm huab cua yuav tsum tau zam thaum lub sij hawm stirring, thiab lub tshuab nqus tsev emulsifier muaj kev ua tau zoo heev.
Ntse Zhitong muaj ntau xyoo dhau los ntawm kev txhim kho, tsim Nqus Tov Khoom HomogenizerNqus Homogenizer tov khoomthiab lub tshuab muaj peev xwm ntawm 5L txog 18000L
Yog koj muaj kev txhawj xeeb thov hu rau
Post lub sij hawm: Nov-01-2022
