HEC RAU COV XIM

Hydroxyethyl cellulose (HEC) yog ib tus neeg siv dav ntxiv rau hauv kev lag luam pleev xim, muaj nuj nqis rau nws cov khoom siv ntau yam, thov thiab ua yeeb yam ntawm ntau hom xim. Ntawm no yog ib qho kev qhia ntawm cov ntawv thov, cov haujlwm, thiab kev txiav txim siab ntawm HEC hauv cov ntsiab lus ntawm cov xim tsim:

1. Taw qhia rau hydroxyethyl cellulose (HEC) hauv cov xim tha xim

1.1 txhais tau thiab qhov chaw

Hydroxyethyl cellulose yog dej-soluble polymer muab tau los ntawm cellulose los ntawm cov tshuaj tiv thaiv nrog ethylene oxide. Nws yog feem ntau yog los ntawm ntoo pulp lossis paj rwb thiab ua tiav los tsim cov polymer nrog ntau yam viscosifying thiab zaj duab xis-ua cov khoom.

1.2 lub luag haujlwm nyob rau hauv cov xim pleev xim

Hauv cov xim tsim qauv, HEC pabcuam pabcuam ntau lub hom phiaj, suav nrog cov xim tuab, txhim kho nws qhov kev ruaj khov, thiab txhim kho tag nrho cov ntawv thov thiab kev ua tau zoo.

2. Kev ua haujlwm ntawm hydroxyethyl cellulose hauv cov xim tha xim

2.1 rheology kho tshuab thiab cov tuab tuab

HEC ACTSIONS ua raws li kev kho siab rheology thiab cov tuab tuab hauv cov xim tsim qauv. Nws tswj cov xim pleev xim rau ntawm cov xim pleev xim, tiv thaiv kev nthuav dav ntawm cov pigments, thiab ua kom cov xim muaj qhov sib thooj rau kev thov kom yooj yim.

2.2 stabilizer

Raws li lub stabilizer, HEC pab kom muaj kev ruaj ntseg ntawm cov xim tsim, tiv thaiv theem sib cais thiab kav homogeneity thaum cia.

2.3 Kev Ua Haujlwm

Hec txhim kho cov khoom siv dej ntawm cov xim pleev xim rau ntawm cov xim, tiv thaiv nws los ntawm kom qhuav sai sai. Qhov no tshwj xeeb tshaj plaws hauv cov xim tha xim dej, tso cai rau kev ua haujlwm zoo thiab txo cov teeb meem xws li cov menyuam cim.

2.4 Zaj duab xis-ua cov khoom

Hi pab txhawb rau kev tsim cov kev ua si txuas ntxiv thiab tsis sib xws ntawm cov xim pleev xim. Zaj yeeb yaj kiab no ua rau kav, txhim kho cov khoom zoo nkauj, thiab txhim kho qhov pom zuag qhia tag nrho ntawm cov xim pleev xim.

3. Cov ntawv thov hauv cov xim tha xim

3.1 cov xim looj xim looj

Hec yog feem ntau siv nyob rau hauv cov xim tsev yas lossis cov dej ua kom ruaj khov, txhim kho nws cov xim tha xim, thiab txhim kho nws cov kev ua tau zoo tag nrho thaum daim ntawv thov thiab ziab.

3.2 Emulsion Pleev Xim

Hauv cov xim pleev xim emulsion, uas muaj cov xim dispersed hauv dej, HEC ua raws li lub stabilizer thiab thickener, tiv thaiv kev sib txuam thiab muab qhov xav tau.

3.3 Cov Tas Tsho Tsho

HEC tau siv nyob rau hauv cov ntaub ntawv tso tawm los txhim kho cov qauv thiab xwm yeem ntawm cov khoom siv txheej. Nws pab tsim cov khaub ncaws hnav thiab ntxim nyiam ntawm cov xim pleev xim rau saum npoo.

3.4 Primers thiab cov sib khi

Hauv kev tso cia thiab cov sib khi, cov lej ua ke rau cov qauv ua kom ruaj khov, viscosity tswj, thiab kev npaj ua yeeb yam zoo tshaj plaws.

4. Kev txiav txim siab thiab ceev faj

4.1 kev sib raug

HEC yuav tsum sib xws nrog lwm cov xim cov khoom xyaw kom tsis txhob muaj cov teeb meem xws li kev txo cov txiaj ntsig, flocculation, lossis hloov pauv cov xim cov xim.

4.2 siab

Cov concentration ntawm hac hauv cov xim tsim nyog yuav tsum ua tib zoo tswj kom tau cov yam ntxwv tsis xav txog lwm yam ntawm cov xim pleev xim.

4.3 Ph rhiab

Thaum HEC feem ntau ruaj khov nyob rau hauv ntau qhov dav ntev, nws yog qhov tseem ceeb uas yuav tsum xav txog PH ntawm cov xim tsim kom ntseeg tau kev ua tau zoo.

5. Xaus

Hydroxyethyl cellulose yog ib qho tseem ceeb ntxiv additive nyob rau hauv kev lag luam pleev xim, ua rau muaj kev lag luam, ruaj ntseg, thiab kev siv ntawm ntau hom xim. Nws cov haujlwm ntau yam ua nws haum rau cov xim pleev xim rau cov dej, cov xim pleev xim emulsion, thiab cov txheej txheem pleev xim, ntawm lwm tus. Cov kws sau ua ke yuav tsum ua tib zoo xav txog kev sib haum xeeb, kev xav tau, thiab ua kom paub tseeb tias HEC ua rau nws cov txiaj ntsig ntau ntawm cov xim sib txawv.