Hydroxyethyl cellulose (HEC)Yog dej-soluble ntuj polymer sib sau ua ke siv ua cov txheej txheem, cov ntaub ntawv tsim tsev, cov duab puab thiab lwm thaj chaw, thiab yog siv dav hauv kev tsim cov xim av tiag tiag. Pob zeb tiag xim xim yog cov xim uas nquag siv rau kev kho kom zoo sab nrauv phab ntsa. Nws muaj huab cua zoo tsis kam thiab kho cov khoom zoo nkauj. Ntxiv tus nqi tsim nyog ntawm hydroxyethyl cellulose rau nws cov mis tuaj yeem txhim kho ntau yam khoom muaj thiab ua kom cov xim zoo thiab kev tsim kho ntawm pob zeb tiag tiag.
1. Nce cov viscosity ntawm cov xim
Hydroxyethyl cellulose yog qhov ua tau zoo heev uas tuaj yeem tsim cov qauv network hauv cov dej ua kua thiab nce viscosity ntawm cov kua. Lub viscosity ntawm pob zeb tiag xim ncaj qha cuam tshuam rau kev tsim kho cov xim. Qhov tsim nyog viscosity tuaj yeem txhim kho lub zog ua kom zoo nkauj thiab npog lub zog ntawm cov xim pleev xim, txo qis kev sib cais, thiab txhim kho kev hnav khaub ncaws ntawm cov txheej txheem. Yog tias cov xim paug ntawm cov xim tsawg heev, nws yuav ua rau txheej txheej tsis sib xws los yog txawm tias sagging, cuam tshuam rau cov tsos thiab zoo ntawm txheej. Yog li ntawd, hydroxyethyl cellulose, raws li cov tuab dua, tuaj yeem txhim kho qhov teeb meem no.
2. Txhim kho cov dej noo kev ua si ntawm cov xim
Thaum lub sij hawm tsim cov txheej txheem ntawm cov xim hlau tiag tiag, noo noo kom tsis muaj qhov tseem ceeb. Hydroxyethyl cellulose muaj cov dej ua kom zoo thiab noo noo ncua kev ncua ntawm cov xim pleev xim dej thiab ua kom cov xim nyob rau hauv ib lub xeev uas muaj dej qhuav thaum lub sijhawm ua kom qhuav. Qhov no tsis tsuas pab txhawm rau txhim kho cov nplaum ntawm txheej, tab sis kuj tiv thaiv kev tawg ua los ntawm ziab ua ntej ziab. Tshwj xeeb tshaj yog nyob hauv huab cua kub lossis qhuav, cov xim hlau tiag tiag nrog cov cellulose hydrothethyl cellulose tuaj yeem hloov kho ib puag ncig thiab xyuas kom zoo.
3. Txhim kho cov rheology ntawm cov xim
Cov rheology ntawm pob zeb xim tiag tiag txiav txim siab qhov kev ua haujlwm thiab kev ruaj ntseg ntawm cov xim thaum kev tsim kho. Hydroxyethyl cellulose tuaj yeem kho cov rheology ntawm cov xim kom ntseeg tau tias cov xim muaj peev xwm qhia tau zoo nyob hauv cov txheej txheem sib txawv (txhuam hniav lossis dov). Piv txwv li, cov xim yuav tsum muaj kev mob ntsws me me thiab cov yeeb yaj kiab qis thaum txau, thaum cov xim yuav tsum muaj advhesion thiab kev tiv thaiv thaum txhuam hniav. Los ntawm kho tus nqi ntawm hydroxyethyl cellulose, lub rheology ntawm cov xim yuav tsum tau kho raws li cov kev tsim kho, yog ua kom cov xim tsim ntawm cov xim sib txawv.
4. Txhim kho kev tsim kho thiab ua haujlwm ntawm cov txheej txheem
Hydroxyethyl cellulose tsis tuaj yeem cuam tshuam rau cov rheology thiab viscosity ntawm cov txheej txheem kev tsim kho, tab sis kuj txhim kho kev tsim kho thiab ua haujlwm ntawm cov txheej txheem. Nws tuaj yeem nce cov kev ua kom zoo, ua cov txheej txheem kev tsim kho smoother. Tshwj xeeb tshaj yog thaum tsim kev tsim ib thaj chaw loj, kev hloov pauv ntawm cov txheej txheem tsim kho, txo qis kev siv zog ntawm cov ua haujlwm ntawm cov khoom siv.
5. Txhim kho qhov ruaj khov thiab ruaj khov ntawm txheej
Thaum lub sijhawm khaws cia thiab tsim cov txheej txheem, hydroxyethyl cellulose tuaj yeem txhim kho kev ruaj ntseg lossis ua kom cov khaub ncaws hnav kom zoo nkauj thaum lub sijhawm khaws cia ntev. Tsis tas li ntawd, thaum lub sijhawm kho cov txheej txheem tom qab txheej txheej dries, hydroxyethyl cellulose tuaj yeem tsim cov qauv network los txhim kho cov khoom siv durability thiab tiv thaiv kev laus. Nyob rau hauv txoj kev no, UV tiv taus thiab antioxidant muaj peev xwm ntawm txheej txheej tau txhim kho, yog li txuas cov kev pabcuam lub neej ntawm txheej.
6. Txhim kho kev tiv thaiv ib puag ncig thiab kev nyab xeeb ntawm cov txheej txheem
Raws li lub ntuj dej-soluble polymer compound, hydroxyethyl cellulose muaj kev tiv thaiv zoo ib puag ncig. Nws siv nyob rau hauv cov xim av tiag tiag tsis tsim cov tshuaj muaj teeb meem, thiab muaj kev tiv thaiv loj hlob ntsuab thiab ib puag ncig muaj zog ntawm kev ua txuj ci tshiab. Nyob rau tib lub sijhawm, raws li cov tshuaj tsis muaj tshuaj lom, tsis muaj kev txob tshuaj, kev siv cov neeg ua haujlwm hauv hydrothethyl tseem ua rau muaj peev xwm tsim kev puas tsuaj rau tib neeg lub cev thaum kev tsim kho.
7. Txhim kho cov anti-permeability ntawm cov txheej txheem
Cov xim hlau tiag tiag yog feem ntau siv rau sab nrauv daim tawv ntoo thiab kev yuav tsum muaj cov dej ntws tsis taus los tiv thaiv cov txheej los ntawm cov txheej lossis pwm ntawm phab ntsa. Hydroxyethyl cellulose tuaj yeem txhim kho cov anti-ensability ntawm txheej thiab txhim kho cov dej tsis kam thiab noo noo tsis kam ntawm cov xim av tiag tiag.
Hydroxyethyl celluloseUa si lub luag haujlwm tseem ceeb hauv cov xim av tiag. Nws tsis tuaj yeem txhim kho viscosity, rhineology thiab noo noo khaws cov txheej txheem kev tsim kho, tab sis kuj txhim kho kev ruaj ntseg, durability thiab tiv thaiv cov txheej. Tsis tas li ntawd, raws li ib puag ncig phooj ywg thiab cov khoom siv nyab xeeb, kev sib ntxiv ntawm cov txheej txheem hydrotyl ntawm cov cuab yeej tsim qauv ntawm kev tiv thaiv kev tiv thaiv tam sim no thiab ntau ntxiv. Yog li, daim ntawv thov ntawm hydroxyethyl cellulose hauv cov xim hlau tiag tiag tsis tsuas yog ua kom tau cov xim muaj zog tag nrho rau cov xim av uas muaj kev tsim kho.
Lub Sijhawm Post: Lub sijhawm 25-2025