Pleev xim, ib txwm hu xim hauv Suav teb. Cov xim uas tau pleev xim yog coated nyob rau saum npoo ntawm cov khoom kom muaj kev tiv thaiv lossis dai kom zoo nkauj, thiab tuaj yeem tsim zaj duab xis txuas ntxiv txuas rau tus kwv ua kom sib.
Dab tsi yog hydroxyethyl cellulose?
Hydroxyethyl cellulose (HEC), dawb lossis lub teeb daj, npaj los ntawm lub etherine cellulo thiab powlene oxide (lossis chlorohydrin), belongs rau notionic cellulose cellulose cellulose cellulose cellulose cellulose cellulose cellulose cellulose cellulose cellulos Txij li thaum Hi muaj cov khoom zoo ntawm thickening, kev sib raug zoo, kev tiv thaiv, textures, cov khoom noj, ntawv sau, ntawv tso cai, ntawv tso cai, ntawv sau thiab polymer polymerization thiab lwm daim teb.
Yuav muaj dab tsi tshwm sim thaum hydroxyethyl cellulose tau raws li cov xim pleev xim dej?
Raws li cov tsis yog-ionic surfactant, hydroxyethyl cellulose muaj cov khoom siv ua kom tuab ntxiv, ua yeeb yaj kiab, dej tuav, dej tuav thiab muab kev tiv thaiv kev tiv thaiv kab mob:
HEC yog soluble hauv dej kub lossis dej txias, kub yam tsis muaj nag lossis daus, thiab cov yam ntxwv tsis yog-thermal gelation;
Lub peev xwm kav dej ua haujlwm yog ob zaug kom siab npaum li ntawm methyl cellulose, thiab nws tau ntws zoo dua ntws cov cai;
Piv nrog lees paub methyl cellulose thiab hydroxypropyl 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 daws teeb meem elevelfolyte;
Yuav ua li cas siv hydroxyethyl cellulose? Yuav ua li cas ntxiv nws?
Ntxiv qha ncaj qha thaum tsim khoom - hom no yog qhov yooj yim thiab yuav siv sijhawm luv tshaj plaws.
Ntxiv cov dej huv rau ib lub thoob loj nruab nrog lub siab shear tov. Pib txhib tsis tu ncua ntawm kev nrawm nrawm thiab maj mam sieve lub hydroxyethyl cellulose rau hauv kev daws qhov uayees. Txuas ntxiv mus rau kom txog thaum txhua qhov me me tau tsau. Tom qab ntawd ntxiv cov tshuaj tiv thaiv thiab ntau yam ntxiv. Xws li pigments, dispersing dej, ammonia dej, thiab lwm yam ntawm cov kev daws teeb meem tag nrho (lub viscosity celluled
Nruab nrog niam cawv
Nws yog los npaj cov cawv niam nrog ntau dua kev lees paub 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 tus neeg tsis taus los khaws cov tshuaj hydroxyethyl qhia kom txog thaum yaj tag. Txawm li cas los xij, nws yuav tsum raug sau tseg tias cov funergicide yuav tsum tau ntxiv rau niam cawv niam hmo kom sai li sai tau.
Txij li cov npoo npoo hydroxyethyl cellulose yog powdery lossis fibrous khoom, nco ntsoov ua kom nco ntsoov tias cov ntsiab lus hauv qab no thaum npaj hydroxyethyl cellulose niam cawv:
(1) Ua ntej thiab tom qab ntxiv hydroxyethyl cellulose, nws yuav tsum tau ua kom tiav kom mus kom txog thaum cov tshuaj tau muab cov pob tshab thiab meej.
(2) Nws yuav tsum maj mam siled rau hauv lub tank sib xyaw, thiab tsis txhob muab cov nyiaj ntau lossis ncaj qha rau hauv hydroxyethyl cellulose rau hauv lub tank sib xyaw.
(3) Dej kub thiab cov nqi PH hauv cov dej muaj kev sib raug zoo tseem ceeb nrog kev sib txawv ntawm hydroxyethyl cellulose, yog li tshwj xeeb saib yuav tsum tau them.
(4) Tsis ntxiv ib qho tshuaj alkaline rau cov tshuaj sib xyaw ua ntej cov hmoov hydroxyethyl hmoov yog tsau nrog dej. Tsa phua tom qab ntub pab kom yaj.
(5) kom deb li deb tau, ntxiv antifungal tus neeg sawv cev ua ntej
(6) Thaum siv holloposity hydroxyethyl cellulose, lub concentration ntawm niam cawv yuav tsum tsis txhob siab dua 2.5-3% (los ntawm qhov hnyav), txwv tsis pub tus niam cawv yuav nyuaj rau lis.
Lub sij hawm ncua: Mar-02-2023