Focus on Cellulose ethers

Yuav ua li cas yaj hydroxyethyl cellulose hauv dej?

Hydroxyethyl cellulose (HEC) yog cov dej-soluble polymer uas feem ntau siv rau hauv ntau daim ntawv thov xws li cov nplaum, txheej, thiab cov khoom tu tus kheej. Dissolving HEC hauv dej yog txheej txheem yooj yim uas tuaj yeem ua tiav siv cov kauj ruam hauv qab no:

Xaiv cov qib zoo ntawm HEC: HEC muaj nyob rau hauv ntau qib nrog qhov sib txawv molecular hnyav thiab qib hloov pauv. Qhov kev xaiv ntawm qib yuav nyob ntawm daim ntawv thov tshwj xeeb thiab cov khoom xav tau ntawm cov khoom kawg.

Npaj cov dej: Thawj kauj ruam yog npaj cov dej los ntawm kev ntsuas qhov xav tau ntawm cov dej thiab ua kom sov rau qhov kub ntawm 70-80 ° C. Cov cua kub ntawm cov dej yuav pab ua kom cov txheej txheem sib cais thiab xyuas kom meej tias HEC muaj dej txaus.

Ntxiv HEC rau dej: Thaum cov dej tau mus txog qhov ntsuas kub uas xav tau, maj mam ntxiv HEC rau hauv dej thaum nplawm tas li. Nws yog ib qho tseem ceeb kom ntxiv HEC maj mam thiab maj mam kom tsis txhob clumping thiab xyuas kom meej tias nws tau tawg tag nrho hauv dej.

Txuas ntxiv stirring: Tom qab ntxiv HEC rau hauv dej, txuas ntxiv stirring qhov sib tov rau li 30 feeb. Qhov no yuav pab kom paub tseeb tias HEC yog tag nrho yaj thiab hydrated.

Cia cov sib tov kom txias: Tom qab HEC tau yaj tag, cia cov sib tov kom txias rau chav tsev kub. Raws li qhov sib tov txias, nws yuav thicken thiab ncav cuag nws qhov kawg viscosity.

Kho cov pH thiab viscosity: Nyob ntawm daim ntawv thov tshwj xeeb, nws yuav tsim nyog los kho pH thiab viscosity ntawm HEC tov. Qhov no tuaj yeem ua tau los ntawm kev ntxiv cov kua qaub lossis lub hauv paus los kho cov pH thiab los ntawm kev ntxiv dej lossis HEC ntxiv los kho cov viscosity.

Dissolving HEC hauv dej yog txheej txheem yooj yim uas tuaj yeem ua tiav nrog ob peb kauj ruam yooj yim. Los ntawm kev xaiv cov qib zoo ntawm HEC, npaj cov dej kom zoo, thiab nplawm qhov sib tov tsis tu ncua, nws muaj peev xwm kom tau txais cov tshuaj HEC tag nrho uas tuaj yeem siv rau ntau yam kev siv.


Post lub sij hawm: Mar-08-2023
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