Xov Xwm Kub Heev
Feb 23, 2021
Thickener yog ib hom khoom noj ntxiv, feem ntau yog siv los txhim kho thiab nce lub viscosity ntawm cov zaub mov, tswj cov xim, tsw qab, saj thiab ruaj khov ntawm cov zaub mov ua kua thiab khoom noj khoom noj jelly, txhim kho lub cev nqaij daim tawv cov zaub mov, thiab ua kom cov zaub mov lubrication Ib qho zoo nkauj. Tus mob siab dua tuaj yeem ua rau kom cov viscosity ntawm cov zaub mov lossis daim ntawv gels, yog li hloov cov khoom ntawm lub cev ntawm cov khoom noj, muab cov khoom noj lo nplaum, tsim nyog saj, thiab tseem muaj cov nyhuv emulsifying, stabilizing lossis ua rau lawv ncua. Tam sim no pom zoo cov thickeners siv nyob rau hauv Suav Teb Muaj 39 hom thickeners. Thickeners yog txhua qhov sib txuas hydrophilic polymer, tseem hu ua hydrosols. Raws li nws qhov chaw, nws tuaj yeem faib ua ob pawg: ntuj tsim thiab tshuaj lom neeg (suav nrog ib nrab hluavtaws).
Thickener yog ib hom rheological ntxiv, uas tsis tuaj yeem tsis tsuas yog ua kom tuab txheej thiab tiv thaiv kom tsis txhob sagging thaum lub sijhawm tsim kho, tab sis kuj muab cov coatings zoo heev cov cuab yeej zoo nkauj thiab kev ruaj ntseg cia. Nws yog chav kawm tseem ceeb ntawm kev ntxiv rau kev pleev xim dej raws li tsis muaj viscosity.
Muaj dej ntsiab lus thiab oily cov ntsiab lus. Tshwj xeeb tshaj yog daim ntawv thov ntawm theem theem thickener yog ntau ntau. Thickener yog qhov tseem ceeb rheological ntxiv. Tom qab cov thickener ntxiv, lub rheology tuaj yeem kho kom haum rau cov nplaum thiab lub foob, tiv thaiv muab tub lim los nag, muab lub cev zoo thiab lub cev qhov chaw ruaj khov, thiab tswj cov ntws ntawm kev tsim kho. Kev tsis txaus siab (tsis muaj sagging, tsis los yog ya ua kua thaum sizing) kuj tseem tuaj yeem txo nqi.
Nws yog qhov tshwj xeeb tshaj yog rau kev tsim khoom, chaw cia khoom thiab siv cov nplaum thiab cov foob. Nws tuaj yeem txhim kho thiab kho cov viscosity kom tau txais kev ruaj khov, tiv thaiv kev tawm tsam, tawm tsam sab, tawm tsam, tiv thaiv kev tawm tsam, thiab thixotropic zog.
Cov zaub mov-qib thickener-tus neeg tsis noj nqaij cov hmoov yog cov dej-theem thickener, thiab nws kuj yog roj-theem thickener, uas yog hais, nws tuaj yeem nqus tau dej ntau thaum nws ntsib dej, thiab nws tuaj yeem tsim lub ntsej muag gel thaum nws absorbs 30 lub sij hawm ntawm dej. Thaum nws nqus 50-100 zaug dej, nws tuaj yeem dhau los ua tus tshaj. Thaum nws nqus 100-200 zaug dej, nws tuaj yeem ua rau lub cev dej thiab qhov system muaj cov protein thiab roj ua rau lub siab zoo thiab muaj zog zoo nkauj. Cov nqaij tsis noj nqaij hmoov yog muab rho tawm los ntawm marine algae thiab thaj av cog Konjac. Cov algae yuav nqus cov pa roj carbon dioxide nyob rau hauv hiav txwv los ntawm kev sib tw thaum lub caij loj hlob, uas yog qhov zoo rau ib puag ncig. Ntxiv cov nqaij tsis noj nqaij hmoov ua rau cov zaub mov tseem yog ib qho kev tiv thaiv ib puag ncig hauv ntiaj teb thiab ntsuab. Txoj kev ntawm kev muaj sia nyob.