Hydroxyethyl cellulose yog dab tsi?

Hydroxyethyl cellulose (HEC) yog xim dawb los yog lub teeb daj, tsis muaj ntxhiab, tsis muaj tshuaj lom fiber ntau lossis hmoov, npaj los ntawm etherification cov tshuaj tiv thaiv ntawm alkaline cellulose thiab ethylene oxide (los yog chlorohydrin).
1. Cov lus qhia
1.1 ntxiv ncaj qha rau lub sijhawm tsim khoom

1. Ntxiv dej huv rau lub thoob loj uas nruab nrog lub tshuab shear siab.

2. Pib do tsis tu ncua ntawm qhov ceev thiab maj mam sieve cov hydroxyethyl cellulose rau hauv cov tshuaj sib npaug.

3. Ntxiv stirring kom txog thaum tag nrho cov khoom yog tsau.

4. Tom qab ntawd ntxiv cov tshuaj tua kab mob, alkaline additives xws li pigments, dispersing aids, dej ammonia.

5. Sib tov kom txog thaum tag nrho cov hydroxyethyl cellulose yog yaj tag (lub viscosity ntawm cov tshuaj nce ntau heev) ua ntej ntxiv lwm yam nyob rau hauv cov mis, thiab grind kom txog thaum cov khoom tiav.

1.2 Npaj nrog niam cawv

Txoj kev no yog npaj cov cawv niam nrog ntau dua concentration ua ntej, thiab tom qab ntawd ntxiv rau cov xim latex. Qhov kom zoo dua ntawm txoj kev no yog tias nws muaj qhov yooj yim dua thiab tuaj yeem ncaj qha ntxiv rau cov xim tiav, tab sis nws yuav tsum khaws cia kom zoo. Cov kauj ruam zoo ib yam li Kauj Ruam 1-4 hauv Txoj Kev 1, qhov sib txawv yog tias tsis tas yuav do kom txog thaum nws tau yaj tag rau hauv cov kua nplaum.

Txoj kev no yog npaj cov cawv niam nrog ntau dua concentration ua ntej, thiab tom qab ntawd ntxiv rau cov xim latex. Qhov kom zoo dua ntawm txoj kev no yog tias nws muaj qhov yooj yim dua thiab tuaj yeem ncaj qha ntxiv rau cov xim tiav, tab sis nws yuav tsum khaws cia kom zoo. Cov kauj ruam zoo ib yam li Kauj Ruam 1-4 hauv Txoj Kev 1, qhov sib txawv yog tias tsis tas yuav do kom txog thaum nws tau yaj tag rau hauv cov kua nplaum.

2.Porridge rau phenology
Txij li cov kuab tshuaj organic yog cov kuab tshuaj tsis zoo rauhydroxyethyl cellulose, cov kuab tshuaj organic no tuaj yeem siv los npaj cov porridge. Feem ntau siv cov kuab tshuaj organic yog cov kua organic xws li ethylene glycol, propylene glycol thiab zaj duab xis qub (xws li ethylene glycol los yog diethylene glycol butyl acetate) hauv cov xim pleev xim. Cov dej khov kuj yog cov kuab tshuaj tsis zoo, yog li dej khov feem ntau siv ua ke nrog cov kua dej organic los npaj porridge. Lub hydroxyethyl cellulose ntawm porridge tuaj yeem ncaj qha ntxiv rau cov xim, thiab hydroxyethyl cellulose tau muab faib thiab swelled hauv porridge. Thaum ntxiv rau cov xim, nws dissolves tam sim ntawd thiab ua raws li ib tug thickener. Tom qab ntxiv, stirring tas li kom txog thaum hydroxyethyl cellulose yog yaj tag thiab uniform. Feem ntau, porridge yog tsim los ntawm kev sib xyaw rau 6 feem ntawm cov kuab tshuaj organic lossis dej khov nrog ib feem ntawm hydroxyethyl cellulose. Tom qab li 6-30 feeb, hydroxyethyl cellulose yuav hydrolyzed thiab o pom tseeb. Nyob rau lub caij ntuj sov, dej kub feem ntau yog siab dhau, yog li nws tsis tsim nyog siv porridge.
3. Daim ntawv thov teb

Hydroxyethyl cellulose Siv los ua cov nplaum, surfactants, colloidal tiv thaiv cov neeg ua haujlwm, dispersants, thiab lwm yam.
Nws muaj ntau yam kev siv hauv cov xim, xim, fiber ntau, dyeing, papermaking, tshuaj pleev ib ce, tshuaj tua kab, ntxhia ua, roj rov ua haujlwm, thiab tshuaj.

1. Hydroxyethyl cellulose feem ntau yog siv los ua thickener, tiv thaiv tus neeg sawv cev, nplaum, stabilizer thiab additive rau kev npaj ntawm emulsion, jelly, tshuaj pleev, tshuaj pleev ib ce, qhov muag cleanser, suppository thiab ntsiav tshuaj, thiab kuj siv raws li hydrophilic gel thiab skeleton ntaub ntawv, kev npaj ntawm matrix-type sustained-release npaj, thiab tseem tuaj yeem siv los ua kom ruaj khov hauv cov khoom noj.

2. Hydroxyethyl cellulose Siv los ua tus neeg sawv cev sizing hauv kev lag luam textile, thiab ua tus neeg sawv cev pabcuam rau kev sib txuas, thickening, emulsifying, thiab stabilizing hauv electronics thiab light industry sectors.

3. Nws yog siv los ua thickener thiab kua poob reducer rau dej-raws li drilling kua thiab tiav kua, thiab cov thickening nyhuv yog pom tseeb nyob rau hauv brine drilling kua. Nws kuj tseem siv tau los ua cov kua dej poob qis rau cov roj zoo cement. Nws tuaj yeem txuas nrog polyvalent hlau ions los ua ib lub gel.

4. Hydroxyethyl cellulose khoom yog siv los ua dispersant rau polymerization ntawm roj av-raws li gel fracturing kua, polystyrene thiab polyvinyl chloride, thiab lwm yam los ntawm fracturing. Nws kuj tseem tuaj yeem siv los ua emulsion thickener hauv kev lag luam xim, hygrostat hauv kev lag luam hluav taws xob, cov cement anticoagulant thiab cov neeg saib xyuas cov dej noo hauv kev tsim kho. Ceramic kev lag luam glazing thiab tshuaj txhuam hniav binder. Nws kuj yog siv dav hauv kev luam ntawv thiab dyeing, textiles, papermaking, tshuaj, tu cev, zaub mov, luam yeeb, tshuaj tua kab thiab tua hluav taws.

5. Raws li surfactant, colloidal tiv thaiv tus neeg saib xyuas, emulsification stabilizer rau vinyl chloride, vinyl acetate thiab lwm yam emulsions, nrog rau latex tackifier, dispersant, dispersion stabilizer, thiab lwm yam. Dav siv nyob rau hauv coatings, fibers, dyeing, tshuaj pleev ib ce, tshuaj tua kab, tshuaj tua kab. , thiab lwm yam Nws kuj muaj ntau yam siv hauv kev tshawb nrhiav roj thiab kev lag luam machinery.

6. Hydroxyethyl cellulose muaj nto active, thickening, suspending, binding, emulsifying, zaj duab xis-forming, dispersing, dej-retaining thiab tiv thaiv functions nyob rau hauv cov tshuaj cov khoom thiab ua kua.

7. Nws yog siv los ua polymeric dispersant rau kev siv roj av-raws li gel fracturing kua, polyvinyl chloride thiab polystyrene. Nws kuj tseem tuaj yeem siv los ua emulsion thickener hauv kev lag luam xim, cement anticoagulant thiab noo noo tuav tus neeg sawv cev hauv kev tsim kho, tus neeg saib xyuas glazing thiab tshuaj txhuam hniav nplaum hauv kev lag luam ceramic. Nws kuj yog siv dav hauv kev lag luam xws li luam ntawv thiab dyeing, textiles, papermaking, tshuaj, tu cev, zaub mov, luam yeeb thiab tshuaj tua kab.