Dab tsi ntawm thickener yog siv nyob rau hauv cov xim?

Lub thickener siv nyob rau hauv cov xim feem ntau yog ib yam khoom uas ua rau kom cov viscosity los yog thickness ntawm cov xim tsis cuam tshuam rau nws lwm yam khoom xws li xim los yog ziab lub sij hawm. Ib qho ntawm feem ntau hom thickener siv nyob rau hauv cov xim yog ib tug rheology modifier. Cov kev hloov pauv no ua haujlwm los ntawm kev hloov pauv tus cwj pwm ntws ntawm cov xim, ua rau nws thicker thiab ruaj khov.

Muaj ntau ntau hom rheology modifiers siv nyob rau hauv cov xim formulations, txhua tus muaj nws tus kheej lub zog thiab zoo. Qee qhov feem ntau siv rheology hloov kho muaj xws li:

Cellulose Derivatives:
Hydroxyethyl cellulose (HEC)
Hydroxypropyl cellulose (HPC)
Methyl Cellulose (MC)
Ethyl hydroxyethyl cellulose (EHEC)
Associative Thickeners:
Hydrophobically hloov kho ethoxylated urethane (HEUR)
Hydrophobically hloov kho alkali-soluble emulsion (HASE)
Hydrophobically hloov kho hydroxyethyl cellulose (HMHEC)
Polyacrylic Acid Derivatives:
Carbomer
Acrylic acid copolymer
Bentonite av nplaum:
Bentonite av nplaum yog ib tug natural thickener muab los ntawm volcanic tshauv. Nws ua haujlwm los ntawm kev tsim ib lub network ntawm cov khoom uas ntxiab dej molecules, yog li thickening cov xim.
Silica Gel:
Silica gel yog cov khoom siv hluavtaws uas ua haujlwm los ntawm kev nqus thiab nqus cov kua hauv nws cov qauv ntxeem tau, yog li thickening cov xim.
Polyurethane Thickeners:
Polyurethane thickeners yog cov khoom siv hluav taws xob uas tuaj yeem tsim kho los muab cov khoom tshwj xeeb rau cov xim.
Xanthan Gum:
Xanthan cov pos hniav yog ib qho ntuj thickener tau los ntawm fermentation ntawm cov suab thaj. Nws tsim cov gel zoo li sib xws thaum tov nrog dej, ua rau nws haum rau cov xim tuab.
Cov kev hloov kho rheology no feem ntau ntxiv rau cov xim pleev xim thaum lub sij hawm tsim cov txheej txheem kom muaj nuj nqis kom ua tiav qhov xav tau viscosity thiab cov khoom ntws. Kev xaiv ntawm thickener nyob ntawm ntau yam xws li hom xim (xws li, dej-raws li los yog hnyav-raws li), xav tau viscosity, daim ntawv thov txheej txheem, thiab kev xav txog ib puag ncig.

Ntxiv nrog rau kev ua kom cov xim tuab, rheology modifiers tseem ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv sagging, txhim kho kev txhuam hniav, txhim kho qib, thiab tswj kev tawg thaum lub sij hawm thov. kev xaiv ntawm thickener yog qhov tseem ceeb hauv kev txiav txim siab tag nrho kev ua tau zoo thiab kev siv cov yam ntxwv ntawm cov xim.