1. Pib
Hydroxyethyl cellulose (HEC) yog cov dej tsis-ionic-soluble polymer compound, uas yog siv dav, textiles, papermaking thiab lwm yam kev lag luam. Nws muaj cov thickening zoo heev, emulsification, zaj duab xis-ua, dispersion, ruaj khov thiab ua si lub luag haujlwm tseem ceeb hauv cov xim looj.
2. Cov yam ntxwv ntawm hydroxyethyl cellulose
Thickening: HEC muaj lub peev xwm zoo heev, uas tuaj yeem ua rau viscosity ntawm looj cov xim looj, li kev txhim kho nws cov kev tsim kho.
Rheology: HEC tuaj yeem hloov kho cov rheology ntawm looj xim, muab cov tshuaj tiv thaiv zoo heev thiab txhuam hniav.
Kev Ncua Ntawv: Nws tuaj yeem tiv thaiv cov pigments thiab fillers los ntawm kev tswm thaum lub sijhawm cia thiab tsim kho.
Zaj duab xis-tsim: HEC tuaj yeem tsim cov pob tshab thiab hloov tau yooj yim thaum lub sijhawm ua kom qhuav ntawm cov xim pleev xim.
Stability: HEC muaj cov tshuaj ruaj khov zoo thiab muaj peev xwm ruaj khov, thiab muaj peev xwm tswj tau ruaj khov ua tau zoo nyob rau hauv huab cua ib puag ncig.
3. Yuav ua li cas siv hydroxyethyl cellulose hauv looj xim
Cov Qauv Piav Qhia
Hec yuav tsum tau yaj hauv dej ua ntej siv los ua cov tshuaj sib xyaw ua ke. Cov kauj ruam piav txog kev sib cais yog raws li hauv qab no:
Kev hnyav: hnyav cov kev xav tau HEC raws li cov tshuaj uas xav tau.
Premixing: Maj mam ntxiv Hec rau dej txias thiab ua ntej ua ntej los tiv thaiv agglomeration.
Clorring: do nrog lub siab-ceev stirrer rau 30 feeb rau 1 teev kom ntseeg tau tias HEC yog yaj tag.
Soaking: Cia cov tshuaj sawv rau ob peb teev rau 24 teev kom txog thaum HEC yog tag nrho o tuaj ua ib qho kev daws teeb meem kua txiv.
Npaj cov xim pleev xim looj
Hauv cov txheej txheem ntau lawm ntawm cov xim pleev xim rau looj, HEC feem ntau ntxiv rau theem pib. Cov txheej txheem dav dav yog raws li hauv qab no:
Cov Posperse thiab cov tub lim dej: hauv cov xim dispersion, faib cov nqi ntawm dispersant, thiab tawg ntawm qhov kev kub ceev kom txog thaum cov pigments thiab fillers tau tawg tag nrho.
Ntxiv HEC kev daws teeb meem: Maj mam ntxiv qhov ua ntej npaj HEC
Ntxiv emulsion: maj mam ntxiv cov emulsion nyob rau hauv stirring thiab txuas ntxiv nplawm kom ntseeg kom ntseeg tau tias muaj kev sib cais ua ke.
Kho viscosity: ntxiv cov nqi uas tsim nyog ntawm cov thickener lossis dej raws li xav tau los kho qhov kawg viscosity ntawm cov xim paug.
Ntxiv cov tshuaj ntxiv: Ntxiv lwm yam kev sib ntxiv xws li Defoamer, tshuaj tiv thaiv, kev ua yeeb yaj kiab ua yeeb yaj kiab, thiab lwm yam raws li cov qauv tshuaj.
Do kom zoo heev: txuas ntxiv nplawm kom ntseeg tau tias txhua yam yog tusyees sib xyaw kom tau txais cov khaub noom zoo nkauj thiab ruaj khov.
Cov kev ceev faj
Thaum siv HEC, cov ntsiab lus hauv qab no yuav tsum tau sau tseg hauv qab no:
Kev nthuav tawm kub: HEC yog yooj yim rau yaj hauv dej txias, tab sis kev kub heev yuav ua rau kev sib cais dhau lawm, tsim agglomerates, cuam tshuam rau cov nyhuv siv.
Stirring ceev: thaum lub sijhawm ua ntej ua kua thiab nplawm, qhov nrawm yuav tsis nrawm rau kev tiv thaiv npuas ntau dhau.
Kev Cia Siab: Hec daws teeb meem yuav tsum tau npaj ua ntej siv kom tsis txhob muaj ntev cia kom tiv thaiv biodegradation thiab viscosity txo.
Falula Haum lus: Raws li kev xav tau ntawm cov xim zoo nkauj, tsim nyog kho tus nqi ntawm HEC kom ntseeg tau tias txoj kev tsim kho kev ua tau zoo thiab ua tau zoo ntawm cov xim pleev xim.
Raws li cov tuab tuab tuab thiab rheology kho tshuab, hydroxyethyl cellulose plays ib tug irreX xim. Los ntawm kev ua kom muaj kev sib cais tsim nyog thiab ntxiv cov txheej txheem, kev ua tau zoo ntawm cov xim yas tau tuaj yeem txhim kho, muab kev tsim kho kom zoo thiab xim zaj duab xis zoo. Hauv kev tsim khoom tiag tiag, kev siv HEC yuav tsum tau hloov kho raws li cov mis thiab cov txheej txheem ua tiav kom ua tiav cov nyhuv zoo tshaj plaws.
Lub Sijhawm Post: Feb-17-2025