HydroxyPropylropy Cellulose (HPMC), cov khoom siv rawCellulose, tuaj yeem yog cov paj rwb lossis ntoo pulp. Nws yog qhov tsim nyog rau pulverize nws ua ntej lossis thaum lub sij hawm alkalization txheej txheem. Lub pulverization yog ua los ntawm cov tshuab ua hluav taws xob. Ua kom puas cov qauv sib xyaw ntawm cov ntaub ntawv raw los txo qis cov roj crystallothinity thiab nce ntxiv nws cov tshuaj lom neeg rau ntawm cov cellulose qabzose fluucolose nplhaib
HydroxyPropylropy Cellulose (HPMC)Yog siv los ua cov khoom siv raw los tsim cov roj, uas tuaj yeem paub txog kev siv cov khoom nyoos, txo cov nqi ntawm kev siv cov khoom noj kom zoo nkauj, thiab txo tus nqi ntawm kev kho kom zoo. Cov yam ntxwv ntawmMethyl Celluloseyog conducive rau qhov kev ua kom zoo ntawm batch, pub-txuas ntxiv cov txheej txheem, zam kev ua kom muaj kev sib xyaw ua ke xws li kev sib xyaw ua ke; Nyob rau tib lub sijhawm, nws tseem muaj kev pab rau txoj cai ntawm cov txheej txheem fermentation. Vim tias cov khoom ntawmHydroxyPropylropy Cellulose (HPMC)zoo ib yam li lwm cov dej-soluble cov neeg ua yeeb yam, nws tuaj yeem siv ua zaj duab xis thiab dej-solomle resining zaj duab xis tau ua kom zoo nkauj ua kom tsis kam, leveling Cov khoom thiab adhesion, thiab tau txhim kho cov npoo av nro, ruaj khov rau cov kua qaub thiab alkali, thiab sib xyaw nrog nws yog xim hlau pigments.
HydroxyPropylropy Cellulose (HPMC)Muaj cov nyhuv zoo raws li cov tuab rau cov dej dawb-raws polyvinyl acetate txheej. Qib ntawm kev hloov chaw ntawmCellulose etheryog nce, thiab cov tsis kam rau cov kab mob thiab kev yaig kuj yog txhim kho.
Txawm hais tias txoj ntsiab cai ntawm cov hluav taws xob setheremes ntawm hydroxypropylulose (HPMC) tsis nyuaj, nws yog cov khoom siv raw, thiab alkalization. Cov chaw ntau ntawm Ethetification, daws rov ua haujlwm rov qab, ntxuav thiab kom qhuav muaj ntau cov thev naus laus zis 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 cov twj paj tswj tau yog ib qho kev ntseeg tau thiab muaj txiaj ntsig zoo rau cov khoom lag luam zoo thiab txhim khu kev qha ntau lawm.
Cov yam ntxwv khoom ntawmHydroxyPropyyl Methyl cellulose:
1. Cov khoom: Cov khoom no yog hmoov dawb, thiab tsis muaj ntxhiab, cov tsis tau thiab tsis muaj tshuaj lom.
2. Cov nyhuv kav dej rov qab: vim cov khoom no tuaj yeem nqus dej ntau zaus hnyav dua nws tus kheej. Saib xyuas dej kom loj hauv cov tshuaj khib, gypsum, pleev xim thiab lwm yam khoom.
3. Cov khoom no tuaj yeem ua rau cov dej txias los ua cov kuab zaub qhib tau.
4. Kev tshem tawm hauv cov kuab tshuaj yeeb yaj kiab: vim tias nws muaj qee qhov ntau ntawm cov kuab tshuaj hydroth, thiab nws kuj tuaj yeem ua rau muaj kuab lom dej sib xyaw thiab cov organic.
5. Ntsev tsis kam: vim tias cov khoom no yog cov khoom tsis-ionic thiab tsis muaj kev sib txuam, nws yog qhov ruaj khov nyob rau hauv aqueous subps lossis organic electrolytes. Nyob rau hauv cov ntaub ntawv ntawm ntau ntau electrolyte, nws yuav ua rau gelation lossis nag lossis daus.
6. Cov kev ua si saum: Cov tshuaj aquees ntawm cov khoom no muaj cov kev ua si nto.
Lub Sijhawm Post: Nov-29-2021
