Xim qib HEC
Xim qib HEC Hydroxyethyl cellulose yog ib yam uas tsis yog-ionic dej-soluble polymer, dawb los yog daj hmoov, yooj yim ntws, tsw thiab tasteless, muaj peev xwm yaj nyob rau hauv ob qho tib si dej txias thiab kub, thiab cov dissolution tus nqi nce nrog kub, feem ntau insoluble nyob rau hauv feem ntau cov organic solvents.Nws muaj PH zoo stability thiab me ntsis viscosity hloov nyob rau hauv thaj tsam ntawm ph2-12.HEC muaj cov ntsev ua haujlwm siab thiab muaj peev xwm hygroscopic, thiab muaj zog hydrophilic dej tuav.Nws cov tshuaj aqueous muaj qhov ua haujlwm saum npoo thiab cov khoom muaj viscosity siab muaj pseudoplasticity siab.Nws tuaj yeem ua rau hauv cov yeeb yaj kiab tsis muaj dej tsis muaj zog nrog lub zog nruab nrab, tsis yooj yim kis los ntawm cov roj, tsis cuam tshuam los ntawm lub teeb, tseem muaj HEC dej-soluble zaj duab xis.Tom qab kev kho saum npoo, HEC disperses thiab tsis sib sau ua ke hauv dej, tab sis dissolves maj mam.PH tuaj yeem hloov kho rau 8-10 thiab sai sai yaj.
Cov khoom tseem ceeb
Hydroxyethyl cellulose (HEC) yog tias nws tuaj yeem yaj hauv dej txias thiab dej kub, thiab tsis muaj cov yam ntxwv gel.Nws muaj ntau yam kev hloov pauv, solubility thiab viscosity.Nws muaj qhov zoo thermal stability (qis dua 140 ° C) thiab tsis tsim nyob rau hauv acidic tej yam kev mob.nag lossis daus.Cov tshuaj hydroxyethyl cellulose (HEC) tuaj yeem tsim cov duab pob tshab, uas muaj cov yam ntxwv uas tsis yog-ionic uas tsis cuam tshuam nrog ions thiab muaj kev sib raug zoo.
Raws li kev tiv thaiv colloid, Xim qib HEC tuaj yeem siv rau vinyl acetate emulsion polymerization los txhim kho kev ruaj ntseg ntawm cov txheej txheem polymerization hauv ntau PH ntau.Hauv kev tsim cov khoom tiav los ua cov xim, muab tub lim thiab lwm yam khoom ntxiv kom sib npaug, ruaj khov thiab muab cov nyhuv thickening.Nws kuj tseem siv tau rau styrene, acrylic, acrylic thiab lwm yam polymers tshem tawm raws li dispersants, siv latex xim tuaj yeem txhim kho cov thickening, txhim kho qib kev ua tau zoo.
Tshuaj Specification
| Qhov tshwm sim | Dawb mus rau dawb hmoov |
| Particle loj | 98% dhau 100 mesh |
| Molar hloov ntawm degree (MS) | 1.8 ~ 2.5 hli |
| Residue ntawm ignition (%) | ≤0.5 |
| tus nqi pH | 5.0 ~ 8.0 |
| Moisture (%) | ≤5.0 |
Cov khoom Qib
| HECqib | viscosity (NDJ, mPa.s, 2%) | viscosity (Brookfield, mPa.s, 1%) |
| HEC HS 300 | 240-360 : kuv | 240-360 : kuv |
| HEC HS 6000 | 4800-7200 Nws | |
| HEC HS 30000 | 24 000-36 000 Nws | 1500-2500 Nws |
| HEC HS 60000 | 48000-72000 Nws | 2400-3600 Nws |
| HEC HS 100000 | 80000-120000 | 4000-6000 |
| HEC HS 150000 | 120000-180000 Nws | 7000 min |
Daim ntawv thov txheej txheem ntawm hydroxyethyl cellulose HEC hauv dejpleev 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 tus 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, txuas ntxiv 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 ntawm 5-30 feeb, cov xim qib HEC hydrolyzes thiab pom tshwm.Nyob rau lub caij ntuj sov, cov av noo ntawm cov dej yog siab dhau los siv rau porridge.
4 .Qhov tseem ceeb uas yuav tsum tau ua tib zoo saib thaum nruab hydroxyethyl cellulose niam cawv:
Pceeb toom
1 Ua ntej thiab tom qab ntxiv xim qib HEC, yuav tsum tau nplawm tsis tu ncua kom txog thaum cov tshuaj yog pob tshab thiab meej.
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 xim qib HEC.
3 dej kub thiab pH tus nqi ntawm cov dej muaj kev sib raug zoo rau kev sib cais ntawm xim qib HEC hydroxyethyl cellulose, yog li yuav tsum tau them tshwj xeeb rau nws.
Tsis txhob ntxiv qee yam khoom siv rau hauv qhov sib tov ua ntej xim qib HEC hydroxyethyl cellulose hmoov yog soaked nrog dej.Nce pH tom qab soaking pab yaj.
5 .Raws li qhov ua tau, thaum ntxov ntxiv ntawm mildew inhibitor.
6 Thaum siv cov viscosity siab xim xim qib HEC, qhov concentration ntawm niam cawv yuav tsum tsis txhob siab tshaj 2.5-3% (los ntawm qhov hnyav), txwv tsis pub niam cawv yuav nyuaj rau kev khiav lag luam.
Cov yam ntxwv cuam tshuam rau viscosity ntawm latex xim
1.Qhov ntau seem cua npuas 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 xim thiab qhov sib piv ntawm cov xim xim HEC.)
5.nyob rau hauv cov 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 tawg.
7.Microbial yaig ntawm thickener.
Ntim:
25kg ntawv hnab sab hauv nrog PE hnab.
20'FCL load 12 tuj nrog pallet
40'FCL load 24 tuj nrog pallet
Post lub sij hawm: Nov-26-2023