HEC rau Paint

HEC luv luv rau hydroxyethyl Cellulose. Hydroxyethyl celluloseHECyog xim dawb los yog daj daj, saj tsis qab, tsis muaj tshuaj lom, fibrous lossis powdery khoom npaj los ntawm etherification ntawm alkaline cellulose thiab ethylene oxide (los yog chloroethanol). Nws yog non-ionic soluble cellulose ether. Raws li ib tug non-ionic surfactant, ntxiv rau thickening, ncua kev kawm ntawv, bonding, floating, zaj duab xis tsim, dispersing, dej tuav thiab kev tiv thaiv.

Tshuaj nta:

1, HEC tuaj yeem yaj hauv dej kub lossis dej txias, qhov kub thiab txias tsis tuaj yeem ua rau dej nag, kom nws muaj ntau yam solubility thiab viscosity, thiab tsis yog thermal gel;

2, nws cov non-ionic tuaj yeem ua ke nrog ntau yam ntawm lwm cov dej-soluble polymers, surfactants, ntsev, yog ib qho zoo heev colloidal thickener uas muaj siab concentration ntawm electrolyte kua;

3, dej tuav lub peev xwm yog ob zaug siab dua methyl cellulose, nrog zoo txaus adjustability,

4. HEC muaj peev xwm dispersion phem tshaj plaws piv nrog rau kev lees paub methyl cellulose thiab hydroxypropyl methyl cellulose, tab sis muaj zog tshaj kev tiv thaiv colloid muaj peev xwm.

Yog li, hydroxyethyl cellulose yog siv dav hauv kev siv roj av, txheej, kev tsim kho, tshuaj thiab zaub mov, textile, ntawv ua thiab cov tshuaj tiv thaiv polymerization thiab lwm yam.

Main khoom ntawmHECrau latex xim

1.Thickening khoom

Hydroxyethyl cellulose (HEC) yog ib qho zoo tagnrho thickener rau coatings thiab tshuaj pleev ib ce. Hauv kev siv tswv yim, kev sib xyaw ua ke ntawm nws cov thickening nrog kev ncua, kev nyab xeeb, kev sib cais thiab kev tuav dej yuav tsim cov txiaj ntsig zoo.

1. pseudo plastics

Pseudoplasticity yog cov cuab yeej uas cov viscosity ntawm cov tshuaj txo nrog qhov nce ntawm kev sib hloov ceev. HEC muaj cov xim latex yog ib qho yooj yim rau siv nrog txhuam los yog cov menyuam thiab tuaj yeem ua kom lub ntsej muag du, uas tuaj yeem ua rau kev ua haujlwm zoo; Hec-muaj tshuaj zawv plaub hau yog kua thiab nplaum, yooj yim diluted thiab yooj yim dispersed.

1. Ntsev tsis kam

HEC ruaj khov nyob rau hauv cov tshuaj ntsev ntsev ntau heev thiab tsis decompose rau hauv ionic xeev. Siv hauv electroplating, tuaj yeem ua rau lub plating nto tiav, ci dua. Qhov tseem ceeb tshaj yog daim ntawv thov ntawm borate, silicate thiab carbonate latex xim, tseem muaj viscosity zoo heev.

4.Ib membranous

Lub membrane tsim cov khoom ntawm HEC tuaj yeem siv rau hauv ntau qhov kev lag luam. Hauv kev ua haujlwm ntawm papermaking, coated nrog HEC glazing tus neeg sawv cev, tuaj yeem tiv thaiv cov roj nkag mus, thiab tuaj yeem siv los npaj lwm yam ntawm cov tshuaj papermaking; HEC nce elasticity ntawm fibers thaum lub sij hawm weaving txheej txheem thiab yog li txo cov neeg kho tshuab kev puas tsuaj rau lawv. HEC ua raws li cov yeeb yaj kiab tiv thaiv ib ntus thaum sizing thiab dyeing ntawm cov ntaub thiab tuaj yeem ntxuav tawm ntawm cov ntaub nrog dej thaum tsis xav tau kev tiv thaiv.

1. Kev tuav dej

HEC pab kom cov dej noo ntawm lub cev nyob rau hauv lub xeev zoo tagnrho. Vim tias ib qho me me ntawm HEC hauv cov kua dej tuaj yeem ua tiav cov dej tuav tau zoo dua, kom lub kaw lus txo qhov kev thov rau dej hauv kev npaj. Yog tsis muaj dej tuav thiab adhesion, cement mortar yuav txo nws lub zog thiab adhesion, thiab av nplaum kuj yuav txo tau cov yas nyob rau hauv tej yam kev nyuaj siab.

Daim ntawv thov ntawm hydroxyethyl cellulose HEChauv latex xim

1. Ntxiv ncaj qha thaum sib tsoo pigment: txoj kev no yog qhov yooj yim tshaj plaws, thiab lub sijhawm siv yog luv. Cov kauj ruam ntxaws yog raws li nram no:

(1) Ntxiv cov dej huv uas tsim nyog rau hauv VAT ntawm lub siab txiav agitator (feem ntau, ethylene glycol, tus neeg sawv cev ntub dej thiab tus neeg ua yeeb yaj kiab raug ntxiv rau lub sijhawm no)

(2) Pib stirring ntawm tsawg ceev thiab maj mam ntxiv hydroxyethyl cellulose

(3) Txuas ntxiv mus kom txog thaum tag nrho cov khoom yog tsau

(4) ntxiv mildew inhibitor, PH regulator, thiab lwm yam

(5) Do kom txog rau thaum tag nrho cov hydroxyethyl cellulose yog yaj tag (lub viscosity ntawm cov tshuaj yog ho nce) ua ntej ntxiv lwm yam Cheebtsam nyob rau hauv lub mis, thiab grind kom txog thaum nws ua xim.

2 nruab nrog niam cov kua tos: txoj kev no yog thawj zaug nruab nrog ntau dua ntawm cov kua niam cov kua, thiab tom qab ntawd ntxiv cov xim latex, qhov zoo ntawm cov qauv no yog qhov yooj yim dua, tuaj yeem ncaj qha ntxiv rau cov xim tiav, tab sis yuav tsum tsim nyog cia. Cov kauj ruam thiab txoj kev zoo ib yam li cov kauj ruam (1) - (4) hauv Txoj Kev 1, tshwj tsis yog tias lub siab txiav agitator tsis tas yuav tsum tau thiab tsuas yog qee tus agitator nrog lub zog txaus kom cov hydroxyethyl fibers sib npaug sib npaug hauv cov tshuaj txaus. Ntxiv stirring kom txog thaum nws dissolves tag mus rau hauv ib tug tuab tov. Nco ntsoov tias cov kab mob mildew inhibitor yuav tsum tau ntxiv rau niam cawv kom sai li sai tau.

3. Porridge zoo li phenology: Txij li cov kuab tshuaj organic yog cov kuab tshuaj phem rau hydroxyethyl cellulose, cov organic solvents tuaj yeem nruab nrog porridge. Feem ntau siv cov kuab tshuaj organic xws li ethylene glycol, propylene glycol, thiab cov khoom siv ua yeeb yaj kiab (xws li hexadecanol lossis diethylene glycol butyl acetate), dej khov kuj yog cov kuab tshuaj tsis zoo, yog li dej khov feem ntau siv nrog cov organic kua hauv porridge.

Gruel - zoo li hydroxyethyl cellulose tuaj yeem ncaj qha ntxiv rau cov xim. Hydroxyethyl cellulose tau saturated nyob rau hauv daim ntawv porridge. Tom qab ntxiv lacquer, yaj tam sim ntawd thiab muaj cov nyhuv thickening. Tom qab ntxiv, ntxiv rau do kom txog thaum hydroxyethyl cellulose dissolves tag thiab uniform. Ib qho porridge raug 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 5-30 feeb, cov hydroxyethyl cellulose hydrolyzes thiab pom tshwm. Thaum lub caij ntuj sov, cov av noo ntawm cov dej yog siab dhau los siv rau porridge.

4.Cov teeb meem xav tau kev saib xyuas thaum equipping hydroxyethyl cellulose niam cawv

Txij li hydroxyethyl cellulose yog cov hmoov granular kho, nws yooj yim los lis thiab yaj hauv dej nrog kev ceev faj hauv qab no.

Daim ntawv ceeb toom

4.1 Ua ntej thiab tom qab ntxiv hydroxyethyl cellulose, yuav tsum tau nplawm tsis tu ncua kom txog thaum cov tshuaj yog pob tshab thiab meej.

4.2. Sieve cov hydroxyethyl cellulose rau hauv lub tank sib tov maj mam. Tsis txhob ntxiv nws mus rau hauv lub tank sib tov hauv ntau qhov ntau lossis ncaj qha rau hauv cov khoom loj lossis kheej kheej hydroxyethyl cellulose.

4.3 dej kub thiab pH tus nqi ntawm cov dej muaj kev sib raug zoo rau kev sib cais ntawm hydroxyethyl cellulose, yog li tshwj xeeb yuav tsum tau them rau nws.

4.4Tsis txhob ntxiv qee yam khoom siv rau kev sib xyaw ua ntej hydroxyethyl cellulose hmoov yog soaked nrog dej. Nce pH tom qab soaking pab yaj.

4.5 Raws li qhov ua tau, thaum ntxov ntxiv ntawm mildew inhibitor.

4.6 Thaum siv high viscosity hydroxyethyl cellulose, qhov concentration ntawm niam cawv yuav tsum tsis txhob siab tshaj 2.5-3% (los ntawm qhov hnyav), txwv tsis pub leej niam cawv yuav nyuaj rau kev khiav lag luam.

Cov yam ntxwv cuam tshuam rau viscosity ntawm latex xim

1 Qhov ntau cov pa npuas nyob hauv cov xim, qhov viscosity siab dua.

2 Puas yog tus nqi ntawm activator thiab dej hauv cov xim pleev xim zoo ib yam?

3 nyob rau hauv lub synthesis ntawm latex, residual catalyst oxide cov ntsiab lus ntawm tus nqi.

4. Qhov ntau npaum li cas ntawm lwm yam ntuj thickeners nyob rau hauv cov xim ntawm cov mis nyuj thiab qhov ntau npaum li cas piv nrogHEChydroxyethyl cellulose.)

5 nyob rau hauv tus txheej txheem ntawm kev pleev xim, qhov kev txiav txim ntawm cov kauj ruam ntxiv thickener yog tsim nyog.

6 Vim muaj kev ntxhov siab ntau dhau thiab cov av noo ntau dhau thaum lub sijhawm tawg.

7 Microbial erosion ntawm thickener.