Hydroxyethyl Cellulose (HEC) yog cov polymer uas yaj tau hauv dej uas feem ntau siv los ua cov khoom siv thickener, emulsifier, stabilizer, thiab lwm yam.
Cov Kauj Ruam Kev Yaj Hydroxyethyl Cellulose
Npaj cov ntaub ntawv thiab khoom siv:
Hydroxyethyl Cellulose hmoov
Cov kuab tshuaj (feem ntau yog dej)
Cov cuab yeej sib tov (xws li lub tshuab sib tov)
Cov cuab yeej ntsuas (lub tog raj kheej ntsuas, lub zog sib npaug, thiab lwm yam)
Thawv
Ua kom sov cov kuab tshuaj:
Yuav kom cov txheej txheem yaj sai dua, cov tshuaj yaj tuaj yeem raug cua sov kom zoo, tab sis feem ntau yuav tsum tsis txhob tshaj 50°C kom tsis txhob muaj kev puas tsuaj los ntawm cua sov. Qhov kub ntawm dej ntawm 30°C thiab 50°C yog qhov zoo tshaj plaws.
Maj mam ntxiv HEC hmoov:
Maj mam muab hmoov HEC nchuav rau hauv dej kub. Yuav kom tsis txhob sib sau ua ke, muab ntxiv los ntawm lub lim dej lossis maj mam muab nchuav rau. Xyuas kom tseeb tias cov hmoov HEC tau sib xyaws sib npaug thaum lub sijhawm do.
Txuas ntxiv mus do:
Thaum lub sijhawm do, maj mam ntxiv cov hmoov HEC kom ntseeg tau tias cov hmoov tau sib npaug hauv dej. Qhov ceev do yuav tsum tsis txhob ceev dhau kom tiv thaiv cov npuas thiab kev sib sau ua ke. Feem ntau pom zoo kom do qhov ceev nruab nrab.
Kev yaj tag: Tom qab kev yaj tag, feem ntau yuav tsum sawv ntsug rau ib lub sijhawm (feem ntau yog ob peb teev lossis ntev dua) kom HEC yaj tag thiab tsim cov tshuaj sib xws. Lub sijhawm sawv ntsug nyob ntawm qhov hnyav molecular ntawm HEC thiab qhov concentration ntawm cov tshuaj.
Kho qhov viscosity: Yog tias qhov viscosity xav tau kho, qhov ntau ntawm HEC tuaj yeem nce lossis txo kom haum. Tsis tas li ntawd, nws kuj tuaj yeem kho tau los ntawm kev ntxiv electrolytes, hloov tus nqi pH, thiab lwm yam.
Cov kev ceev faj thaum yaj cov khoom
Tsis txhob sib sau ua ke: Hydroxyethyl cellulose yooj yim sib sau ua ke, yog li thaum ntxiv hmoov, xyuam xim tshwj xeeb kom muab nws sib npaug. Siv lub lim dej lossis lwm yam khoom siv sib cais los pab sib cais kom sib npaug.
Kev Tswj Kub: Qhov kub ntawm cov kuab tshuaj yuav tsum tsis txhob siab dhau, txwv tsis pub nws yuav ua rau HEC puas tsuaj thiab cuam tshuam rau kev ua haujlwm ntawm cov tshuaj. Feem ntau nws yog qhov tsim nyog dua los tswj nws ntawm 30 ° C thiab 50 ° C.
Tiv thaiv kom tsis txhob muaj cua nkag mus: Tsis txhob do sai dhau kom tiv thaiv kom tsis txhob muaj cua nkag mus rau hauv cov tshuaj kom ua npuas. Cov npuas yuav cuam tshuam rau qhov sib npaug thiab pob tshab ntawm cov tshuaj.
Xaiv cov khoom siv sib tov kom raug: Xaiv cov khoom siv sib tov kom raug raws li qhov viscosity ntawm cov tshuaj. Rau cov tshuaj uas muaj viscosity tsawg, cov stirrers ib txwm siv tau; rau cov tshuaj uas muaj viscosity siab, tej zaum yuav xav tau cov stirrer muaj zog.
Kev khaws cia thiab kev txuag:
Cov tshuaj HEC uas yaj lawm yuav tsum khaws cia rau hauv lub thawv kaw kom tiv thaiv kom tsis txhob muaj dej noo lossis ua rau muaj kuab paug. Thaum khaws cia ntev, tsis txhob cia tshav ntuj ncaj qha thiab qhov chaw kub siab kom ntseeg tau tias cov tshuaj ruaj khov.
Cov teeb meem thiab cov kev daws teeb meem uas tshwm sim ntau
Kev yaj tsis sib npaug:
Yog tias cov hmoov yaj tsis sib npaug, tej zaum yog vim cov hmoov raug nchuav sai dhau lossis do tsis txaus. Kev daws teeb meem yog los txhim kho qhov sib npaug ntawm kev do, nce lub sijhawm do, lossis kho qhov ceev ntawm kev ntxiv hmoov thaum lub sijhawm do.
Kev tsim cov npuas:
Yog tias muaj ntau lub npuas tshwm sim hauv cov tshuaj, cov npuas tuaj yeem txo qis los ntawm kev qeeb qeeb qhov kev sib tov lossis cia nws sawv ntev. Rau cov npuas uas twb tau tsim lawm, siv tus neeg sawv cev degassing lossis kev kho ultrasonic tuaj yeem siv los tshem tawm lawv.
Cov kua viscosity siab dhau los yog qis dhau:
Thaum cov viscosity ntawm cov kua tsis ua tau raws li qhov yuav tsum tau ua, nws tuaj yeem tswj tau los ntawm kev kho qhov ntau ntawm HEC. Tsis tas li ntawd, kev kho qhov pH thiab lub zog ionic ntawm cov kua kuj tseem tuaj yeem cuam tshuam rau viscosity.
Koj tuaj yeem yaj hydroxyethyl cellulose tau zoo thiab tau txais cov tshuaj sib xws thiab ruaj khov. Kev ua tiav cov kauj ruam ua haujlwm thiab kev ceev faj kom raug tuaj yeem ua rau muaj txiaj ntsig zoo tshaj plaws ntawm hydroxyethyl cellulose hauv ntau yam kev siv.
Lub sijhawm tshaj tawm: Lub Yim Hli-08-2024