Yuav ua li cas siv hydroxyethyl cellulose hauv looj xim
1. Hydroxyethyl cellulose yog siv los ua porridge: vim tias hydroxyethyl cellulose tsis yog yooj yim rau cov organic cov kuab tshuaj tuaj yeem siv los npaj porridge. Dej khov dej kuj yog cov kuab tshuaj tsis zoo, yog li cov dej khov feem ntau siv ua ke nrog cov organic kua los npaj porridge. Porridge-zoo li hydroxyethyl cellulose tuaj yeem txuas ncaj qha rau cov xim looj. Hydroxyethyl cellulose tau ua kom tiav hauv porridge. Thaum ntxiv rau cov xim, nws yaj tau sai thiab ua raws li cov tuab. Tom qab ntxiv, khaws stirring kom txog thaum hydroxyethyl cellulose yog tag nrho dispersed thiab yaj. Feem ntau, porridge yog ua los ntawm kev sib xyaw rau feem ntawm cov organic huab cua lossis dej khov nrog ib feem ntawm hydroxyethyl cellulose. Tom qab txog 5-30 feeb, cov hydroxyethyl cellulose yuav muaj hydrolyzed thiab dej txi ob leeg. (Ceeb toom tias cov av noo ntawm cov dej dav dav yog qhov siab dhau rau lub caij ntuj sov, yog li nws yuav tsum tsis txhob siv los ua cov porridge.)
2. Ntxiv hydroxyethyl cellulose ncaj qha thaum sib tsoo cov xim xim: Cov qauv no yooj yim thiab siv sijhawm luv. Cov txheej txheem ntxaws ntxaws yog raws li hauv qab no:
(1) Ntxiv cov dej uas muaj kev lim dej kom haum rau hauv lub thoob loj shear tov (feem ntau, ua yeeb yaj kiab ua yeeb yam ntxiv rau lub sijhawm no)
(2) Pib nplawm tsis tu ncua ntawm qhov nrawm nrawm thiab maj mam thiab tusyees hydroxyethyl cellulose
(3) Txuas ntxiv mus kom txog thaum txhua qhov me me tawg thiab soaked
(4) Ntxiv los tiv thaiv cov mildew additives los kho tus nqi PH
(5) Do kom txog thaum txhua lub hydroxyethyl cellulose yog tag nrho cov kev daws teeb meem (lub viscosity ntawm cov kev daws teeb meem hauv cov mis, thiab zom kom txog thaum cov xim tau tsim.
3. Npaj hydroxyethyl cellulose nrog niam cawv rau kev siv rau tom qab: Cov kab lus no yog npaj rau kev pleev xim ntau dua ua ntej, thiab tom qab ntawd ntxiv nws rau looj xim. Qhov zoo dua ntawm txoj kev no yog tias nws yoog tau yooj yim thiab tuaj yeem hloov ncaj qha ntxiv rau cov xim ua tiav, tab sis nws yuav tsum khaws cia kom zoo. Cov. Xav tau cov kauj ruam (1) - (4)) Cov. Txuas ntxiv mus do txuas ntxiv mus kom txog thaum yaj tag mus rau hauv kev daws teeb meem viscous. Nws yuav tsum raug sau tseg tias tus neeg sawv cev tiv thaiv kab mob yuav tsum tau ntxiv rau cov Nees Niam Nator sai li sai tau.
4 Cov Teeb Meem Xav Tau Mloog Thaum npaj hydroxyethyl cellulose niam cawv
Txij li hydroxyethyl cellulose yog cov hmoov ua tiav, nws yooj yim los tswj thiab yaj nws hauv dej tsuav yog cov khoom hauv qab no.
(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 yog maj mam li sifted rau hauv lub tank sib xyaw, thiab tsis txhob cais cov qog ntawm hydroxyethyl uas tau tsim cov lumps lossis npas mus rau hauv lub tank sib xyaw.
(3) Cov dej kub thiab tus lej hauv 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 tawm cov ids dids.
(5) kom deb li deb tau, ntxiv tshuaj tiv thaiv fungal thaum ntxov.
(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.
Yam cuam tshuam rau cov viscosity ntawm cov xim huv:
(1) Vim tias muaj kev sib daj sib txawv, cov av noo yog overheated thaum lub sij hawm dispersion.
(2) Tus nqi ntawm lwm tus neeg cov ntoo uas cov ntoo hauv cov xim tsim thiab qhov sib piv ntawm cov nyiaj mus rau hydroxyethyl cellulose.
(3) seb tus nqi ntawm surfactant thiab cov dej siv nyob rau hauv cov xim pleev xim yog qhov tsim nyog.
(4) Thaum synthesizing yas, tus nqi ntawm cov ntsiab lus oxide xws li cov khoom seem.
(5) corrosion ntawm thickener los ntawm cov kab mob me.
(6) Hauv kev ua cov xim pleev xim, seb cov kauj ruam ntawm cov tuab tuab yuav tsim nyog.
7 Cov npuas huab cua ntxiv nyob hauv cov xim, cov viscosity siab dua
Lub Sijhawm Post: Mar-04-2023