Hydroxyethyl cellulose (HEC), lub teeb daj lossis lub teeb tsis zoo, npaj los ntawm lub cev nqaij daim tawv nqaij lossis cov genus tsis muaj kev hais txog cellulose soluble cellulose neeg hais txog. Vim tias HEC muaj cov yam ntxwv zoo ntawm thickening, kev sib cais, kev tsim kho hauv cov roj av, kev tsim kho thiab khoom noj, cov ntawv nyeem, cov ntawv nyeem, papermaking thiab polymers. Polymerization thiab lwm thaj teb.
Tom qab hydroxyethyl cellulose raws li cov xim pleev xim dej?
Raws li cov tsis yog-ionic surfactant, hydroxyethyl cellulose muaj cov khoom siv hauv qab no ntxiv rau, kev sib tw, cov dej ua ke thiab muab cov tshuaj tiv thaiv kab mob:
HEC yog soluble nyob rau hauv dej kub lossis dej txias, thiab tsis precipitate ntawm qhov kub lossis rhaub, ua nws muaj ntau yam ntawm solubility thiab viscosity birming;
Lub peev xwm kav dej ua haujlwm yog ob zaug ntawm methyl cellulose, thiab nws tau ntws zoo dua ntws cov cai;
Piv nrog lees paub methyl cellulose thiab hydroxypropal methylropy cellulose, lub zog impersing ntawm HEC yog qhov phem tshaj, tab sis kev tiv thaiv kev tiv thaiv kev muaj peev xwm yog qhov muaj zog tshaj;
Nws tsis yog-ionic thiab tuaj yeem ua ke nrog ntau yam ntawm lwm cov dej-soluble polymers, solfactants, thiab ntsev. Nws yog ib qho zoo tshaj plaws colloidal thickener rau cov kev txhim kho hluav taws xob hluav taws xob.
Yuav ua li cas siv hydroxyethyl cellulose?
Ntxiv ncaj qha rau lub sijhawm ntau lawm - hom no yog qhov yooj yim thiab siv sijhawm tsawg dua:
Pib nplawm tsis tu ncua thiab maj mam sieve lub hydroxyethyl cellulose tusyees rau hauv kev daws thiab txuas ntxiv nplawm kom txog thaum txhua qhov sib xyaw ua kom dhau los. Tom qab ntawd ntxiv cov tshuaj tiv thaiv thiab ntau yam ntxiv. Xws li pigments, dispersing AIDS, Ammonia, thiab lwm yam ntawm cov kev daws teeb meem tau ua ntej dhau los ntawm cov mis los ua cov tshuaj tiv thaiv.
Nruab nrog niam cawv
Nws yog npaj ib tus niam haus cawv uas muaj ntau dua siab ua ntej, thiab tom qab ntawd ntxiv rau cov khoom. Qhov zoo dua ntawm hom no yog tias nws muaj peev xwm ntxiv tau ncaj qha ntxiv rau cov khoom tiav, tab sis nws yuav tsum khaws cia kom zoo. Cov kauj ruam ntawm hom no zoo ib yam li feem ntau ntawm cov theem hauv txoj kev 1; Qhov sib txawv yog tias tsis tas yuav muaj lub siab-shear agitator, thiab tsuas yog qee cov neeg tsis taus los khaws cov tshuaj hydroxyethyl celluled celluled celluled celluled kom txog thaum yaj mus rau hauv kev daws teeb meem. Txawm li cas los xij, nws yuav tsum raug sau tseg tias tus neeg sawv cev tiv thaiv kab mob yuav tsum tau ntxiv rau niam cawv niam thaum sai li sai tau.
Cov Lus Qhia:
Txij li thaum nto-kho hydrothethyl cellulose yog powdery lossis filloxyethyl cellulose niam cawv, nco koj kom koj mloog cov ntsiab lus hauv qab no:
Ua ntej thiab tom qab ntxiv hydroxyethyl cellulose, nws yuav tsum cia ua stirulose, nws yuav tsum cia ua kom nruj kom txog thaum cov kev daws teeb meem tau meej thiab meej;
Nws yuav tsum yog sieved rau hauv kev sib xyaw me ntsis maj mam, thiab tsis ncaj qha txuas cov lumps lossis spheroids thiab hydroxyethyl cellulose rau hauv kev sib tw;
Cov dej kub thiab tus nqi ntawm cov dej muaj kev sib raug zoo tseem ceeb nrog kev sib txawv ntawm hydroxyethyl cellulose, yog li kev tshwj xeeb yuav tsum them rau nws;
Tsis txhob ntxiv qee cov tshuaj alkaline rau cov sib tov ua ntej cov hmoov hydroxyethyl cellulose hmoov yog soaked nrog dej. Kev nce tus nqi rau tom qab soaking yuav pab yaj;
Raws li deb tau, ntxiv cov antifungal neeg sawv cev ua ntej;
Thaum siv high-viscosity hydrotyl cellulose, lub concentration ntawm niam cawv yuav tsum tsis txhob siab dua 2.5-3% (los ntawm qhov hnyav), txwv tsis pub tus niam dej cawv yog qhov nyuaj rau lis.
Lub Sijhawm Post: Feb-20-2025