Hydroxyethyl cellulose

Hydroxyethyl cellulose (HEC) yog daj lossis lub teeb daj, tsis muaj ntxhiab tsw zoo los ntawm lub cellulous lossis powlene ntawm cellulose thiab ethylene oxide (lossis chlorohydrin). Noism 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. Hydroxyethyl cellulose tsis ruaj khov ntawm qhov kub thiab cua sov, tiv thaiv cov av noo, thiab muaj qhov kub thiab txias, thiab muaj ntsev zoo rau kev da dej. Nws cov kua aqueous tau tso cai kom muaj cov ntsev siab ntau thiab ruaj khov.

Cov lus qhia
Koom nrog ncaj qha hauv kev tsim khoom

1. Ntxiv cov dej huv rau ib lub thoob loj nruab nrog lub siab-shear blender.

2. Pib nplawm tsis tu ncua ntawm kev nrawm nrawm thiab maj mam sieve lub hydroxyethyl cellulose rau hauv kev daws qhov tsis meej.

3. Txuas ntxiv nplawm kom txog thaum txhua qhov sib xyaw ua kom dhau los.

4. Tom qab ntawd ntxiv cov tshuaj tiv thaiv kab mob antifungal, alkaline additives xws li pigments, dispersing AIDS, ammonia dej.

5. Do kom txog thaum tag nrho cov hydroxyethyl cellulose yog tag nrho cov kev daws teeb meem (lub viscosity ntawm kev ntxiv lwm cov khoom, thiab zom kom txog thaum cov khoom tiav.

Nruab nrog niam cawv

Hom no yog thawj zaug npaj ib niam cawv nrog kev xav tau ntau dua, thiab tom qab ntawd ntxiv nws rau cov xim pleev xim. Qhov zoo dua ntawm hom qauv no yog tias nws tuaj yeem txuas ntxiv ntxiv rau cov xim ua tiav, tab sis nws yuav tsum khaws cia kom zoo. Cov kauj ruam yog zoo ib yam li cov kauj ruam 1-4 hauv txoj kev 1, tshwj tsis yog tias qhov kev npau taws ntawd tsis tas yuav ua kom tiav kev daws teeb meem.

Siv ceev faj
Txij li thaum lub ntsej muag zoo hydroxyethyl cellulose yog hmoov los yog cellulose khoom, nws yog qhov yooj yim los tuav thiab yaj hauv dej ntev li ntev tau sau tseg.

1. Ua ntej thiab tom qab ntxiv hydroxyethyl cellulose, nws yuav tsum txuas ntxiv kom txog thaum cov tshuaj yog tshab tshab thiab meej.

2. Nws yuav tsum yog sieved rau hauv kev sib xyaw qeeb. Tsis txhob ncaj qha ntxiv rau hydroxyethyl cellulose uas tau tsim rau hauv cov lumps lossis pob rau hauv cov kev sib xyaw ua ke lossis ncaj qha.

3. Cov dej kub thiab lub py 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.

4. Tsis txhob ntxiv qee cov tshuaj alkaline rau cov sib tov ua ntej hydroxyethyl cellulose hmoov yog ua kom sov los ntawm dej. Tsa tus nqi PH tom qab ua kom sov yog pab tau rau kev sib txawv.

5. Raws li deb tau, ntxiv cov antifungal tus neeg sawv cev ntxov li ntxov tau.

6. Thaum siv siab-viscosity hydrotyl cellulose, kev xav ntawm niam cov cawv yuav tsum tsis txhob siab dua 2.5-3%, txwv tsis pub tus niam cawv yog qhov nyuaj ua haujlwm. Cov post-kho hydrothethyl cellulose feem ntau tsis yooj yim los ua cov lumps lossis spheres, thiab nws yuav tsis tsim insoluble kheej kheej kheej tom qab ntxiv dej.