Cov kev sib ntsib ntawm hydroxyethyl cellulose thiab cov txheej txheej dej ua haujlwm

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 Since HEC has good properties of thickening, suspending, dispersing, emulsifying, bonding, film-forming, protecting moisture and providing protective colloid, it has been widely used in oil exploration, coatings, construction, medicine, food, textile, papermaking and polymer Polymerization and other fields.

Hydroxyethyl cellulose yog dav siv nyob rau hauv lub txheej kev lag luam, cia peb saib nws ua haujlwm li cas ua haujlwm hauv cov yees qha:

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;

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;

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.

Txij li thaum lub ntsej muag zoo hydroxyethyl cellulose yog ib qho khoom siv powdery lossis fibrous khoom, cov ntsiab lus hauv qab no yuav tsum tau ua raws li thaum npaj cov khoom siv hydroxyethyl ntawm cov cawv txiv hmab

(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 cov antifungal 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.