Yuav siv li cas hydroxypropyl methylcellulose:
Ntxiv ncaj qha rau kev tsim khoom, txoj kev no yog qhov yooj yim tshaj plaws thiab siv sijhawm luv tshaj plaws, cov kauj ruam tshwj xeeb yog raws li hauv qab no:
1. Ntxiv ib qho dej kub npau npau (cov khoom siv hydroxyethyl cellulose yog soluble hauv dej txias, yog li koj tuaj yeem ntxiv dej txias) rau lub siab shear stress stirring thawv;
2. Tig lub nplawm thiab kev ua haujlwm qis, thiab maj mam sieve cov khoom rau hauv lub thawv nplawm;
3. Txuas ntxiv mus kom txog thaum tag nrho cov khoom yog moistened;
4. Ntxiv dej txias txaus thiab txuas ntxiv mus kom txog rau thaum tag nrho cov khoom yog yaj tag (lub pob tshab ntawm cov kev daws tau zoo dua)
5. Tom qab ntawd ntxiv lwm cov khoom xyaw rau hauv cov mis
Tej yam uas yuav tsum nco ntsoov thaum npaj cov kev daws teeb meem
(1) Cov khoom tsis muaj kev kho deg (tshwj tsis yoghydroxyethyl cellulose) yuav tsum tsis txhob ncaj qha yaj hauv dej txias
(2) Nws yuav tsum tau sifted maj mam rau hauv lub thawv sib tov, tsis txhob ntxiv cov khoom lag luam ncaj qha rau hauv lub thawv sib tov
(3) Qhov kub thiab pH tus nqi ntawm cov dej muaj kev sib raug zoo nrog cov khoom tawg, yog li yuav tsum tau them nyiaj tshwj xeeb.
(4) Ua ntej cov khoom hmoov ntub dej, tsis txhob ntxiv qee cov tshuaj alkaline rau qhov sib tov, tsuas yog tom qab cov khoom hmoov ntub dej tuaj yeem ua kom tus nqi ph tau nce ntxiv, uas yuav pab tau qhov kev sib cais.
(5) Ua ntej ntxiv cov tshuaj tiv thaiv kab mob kom ntau li ntau tau
(6) Thaum siv cov khoom muaj viscosity siab, qhov hnyav ntawm niam cawv yuav tsum tsis pub tshaj 2.5% -3%, txwv tsis pub leej niam haus cawv yog qhov nyuaj rau kev khiav lag luam.
(7) Cov khoom uas tau kho tam sim ntawd yuav tsum tsis txhob siv rau zaub mov lossis tshuaj
Post lub sij hawm: Dec-27-2022