HydroxyPropy muag methylcellulose yog siv los ua cov khoom siv raw los tsim cov roj, kom tau txais kev siv cov roj nyoos, txo tau los ntawm kev siv cov roj nyoos hauv cov fermentation broth, thiab txo tus nqi ntawm kev kho kom zoo. Qhov no hydroxyprropylulose tus thawj coj tus yam ntxwv yog pab rau cov txheej txheem ua kom zoo, zam kev tswj hwm cov teeb meem nruab nrab thiab cov dilution tus nqi; Nws tseem muaj kev pab rau txoj cai ntawm cov txheej txheem fermentation.
HydroxyPropyyl methylcellulose, raw cov ntaub ntawv cov khoom siv cellulose, tuaj yeem kho cov paj rwb lossis ntoo pulp. Nws yog ib qho tsim nyog heev los tsoo nws ua ntej kev ua tiav lossis thaum lub sij hawm ua tiav. Lub crushing yog kom rhuav tshem lub cellulose raw khoom los ntawm cov tshuab hluav taws xob. Cov kev sib sau ua ke lub xeev cov qauv ntawm lub cellulose macromolecules tuaj yeem txo qis cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv dej ntawm cov cellulose macromolleu.
Txawm hais tias cov txheej txheem synthesis ntawm etherification ntawm hydroxypropylulose, ntxuav cov khoom sib cais, cov khoom siv hluav taws xob ntau thiab kev paub cov ntsiab lus tseem ceeb. Txog cov khoom sib txawv, txhua ib puag ncig muaj cov xwm txheej tswj zaum kawg, xws li kub, sijhawm, siab thiab cov khoom siv ntws. Ntu cov khoom siv thiab kev ntsuas cov twj paj nruag tau lav rau cov khoom siv ruaj khov thiab txhim khu kev qha txhim khu kev qha.
Since the performance of hydroxypropyl methylcellulose is similar to other water-soluble ethers, it can be used in latex paint and water-soluble resin paint components as a film-forming agent, thickener, emulsifier and stabilizer.
Ua cov txheej txheem ua yeeb yaj kiab muaj cov coj zoo, qib siab, thiab txhim kho cov sab nro, ruaj khov rau cov kua qaub thiab alkali, thiab sib xyaw rau cov xim hlau. HydroxyPropyyl methylulose muaj cov txiaj ntsig zoo yog qhov tuab rau cov dej dawb-ua kom dawb polyvinyl acetatic xim. Cov degree ntawm kev hloov pauv ntawm cellulose ether yog nce, thiab tawm tsam rau cov kab mob tab sis kuj yog txhim kho.
Lub Sijhawm Post: Dec-22-2022