Hydroxypropyl Methyl Cellulose (HPMC) yog cov khoom siv polymer siv hauv ntau yam lag luam, suav nrog tshuaj, khoom noj, thiab kev tsim kho.Thaum siv HPMC, nws yog ib qho tseem ceeb kom yaj nws kom raug los xyuas kom meej tias nws sib tov sib npaug thiab tsis tsim clumps.Nov yog qee txoj hauv kev los rhuav tshem HPMC:
Npaj Txoj Kev daws: Thawj kauj ruam yog los npaj kev daws teeb meem ntawm HPMC.Qhov concentration ntawm cov tshuaj yuav nyob ntawm daim ntawv thov, tab sis feem ntau yog li ntawm 0.5% mus rau 5%.Pib los ntawm kev ntxiv qhov xav tau ntawm HPMC mus rau lub thawv tsim nyog.
Ntxiv Dej: Cov kauj ruam tom ntej yog ntxiv dej rau hauv lub thawv.Nws yog ib qho tseem ceeb uas yuav tsum tau siv cov dej distilled los yog deionized kom ntseeg tau tias tsis muaj impurities uas yuav cuam tshuam rau cov khoom ntawm HPMC.Cov dej yuav tsum tau ntxiv maj mam thaum stirring cov sib tov kom paub meej tias HPMC dissolves tusyees.
Sib tov cov tshuaj: Thaum cov dej thiab HPMC ntxiv, cov sib tov yuav tsum tau nplawm los yog agitated tsis tu ncua kom txog rau thaum HPMC yaj tag.Nws raug nquahu kom siv lub tshuab tov khoom lossis homogenizer kom ua tiav tiav.
Tso cai rau Kev Soj Ntsuam: Thaum HPMC tau yaj tag, nws raug nquahu kom tso cov tshuaj so rau ob peb teev.Lub sijhawm so no tso cai rau cov npuas huab cua kom khiav tawm thiab xyuas kom meej tias cov tshuaj yog homogeneous.
Lim cov tshuaj: Cov kauj ruam kawg yog lim cov tshuaj kom tshem tawm cov impurities lossis undissolved hais.Cov kauj ruam no yog qhov tseem ceeb tshwj xeeb hauv kev siv tshuaj thiab zaub mov, qhov twg purity yog qhov tseem ceeb.Ib lub lim dej nrog lub pore loj ntawm 0.45 μm lossis me dua feem ntau yog siv.
Hauv cov ntsiab lus, kom yaj HPMC kom raug, koj yuav tsum tau npaj cov tshuaj, ntxiv dej maj mam thaum nplawm, sib tov cov tshuaj kom txog thaum HPMC yaj tag, cia cov tshuaj so, thiab lim cov tshuaj kom tshem tawm cov impurities lossis undissolved hais.
Post lub sij hawm: Apr-01-2023