HydroxyPropyylencellulose ((HPMC), muaj peev xwm kho tau cov duab liab ua ntej siv ua ntej cov tshuaj tiv thaiv kab mob Cov pab pawg dab dej zoo nkauj ntawm lub cellulose macromolecule.
HydroxyPropyyl methylcellose (HPMC) yog siv los ua cov khoom noj ntawm cov roj nyoos, uas tuaj yeem ua kom pom cov roj raw hauv fermentation broth, thiab txo tus nqi ntawm kev kho kom zoo. Qhov no hydroxyprropyluleculose cov yam ntxwv ntawm methylcellulose, zam kev ua kom zoo dua ntawm cov teeb meem xws li kev tswj hwm cov muaj pes tsawg leeg xws li kev sib xyaw ntawm nruab nrab thiab cov dilution; Nws tseem muaj kev pab rau txoj cai ntawm cov txheej txheem fermentation. Txij li thaum ua haujlwm ntawm hydroxypropylencellulose (HPMC) yog cov khoom siv dej huv, thiab lwm yam khoom siv hluav taws xob, thiab cov khoom sib xyaw ua ke rau cov kua qaub thiab alkali, thiab sib xyaw rau nws yog xim hlau pigments.
HydroxyPropyyl methylcellueculose (HPMC) muaj cov txiaj ntsig zoo raws li cov 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.
Txawm hais tias etheremation synthipis txoj cai ntawm hydroxypropyl cellulose (HPMC) tsis nyuaj, nws yuav tsum tau ua alkalized, cov ntaub ntawv raw pulliized, thiab alkalized. Txhua lub chaw ib puag ncig ntawm lub sij hawm ntawm lub sij hawm ntawm lub sij hawm, qog rov qab, tshuab ntxhua khaub ncaws, ntxuav thiab kom qhuav ntawm cov thev naus laus zis tseem ceeb thiab kev paub nplua nuj.
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.
Lub Sijhawm Post: Feb-14-2025