HydroxyPropyyl methylculose muaj thickening, sib dhos, ua yeeb yam, ua yeeb yaj kiab, tso cai, kev ua kom zoo nkauj thiab tiv thaiv kev tiv thaiv thiab tiv thaiv kev tiv thaiv thiab tiv thaiv kev tiv thaiv thiab tiv thaiv kev tiv thaiv kev tiv thaiv thiab tiv thaiv kev tiv thaiv thiab tiv thaiv kev tiv thaiv thiab tiv thaiv kev tiv thaiv thiab tiv thaiv kev tiv thaiv kab mob. Qhov ntau ntawm cov ntawv thov yog qhov dav heev.
Ua ke
Lub txiaj ntsig ntawm hydroxypropyl methylcellose feem ntau muaj 80 mesh thiab 100 mesh. Tus finer qhov zoo kawg nkaus, kev rov ua nrawm dua, feem ntau hais lus, zoo dua. Feem ntau, ntsug reactors tsim cov khoom siv thinner ntau dua li cov tshuaj rov qab reactors.
Kev hloov pauv
Dissolve hydroxypropal methylcellulose (HPMC) hauv dej los ua cov kua hauv cov pob tshab. Saib nws txoj kev pauv teeb meem. Qhov ntau dua qhov kev hloov tsheb loj dua, qhov zoo dua, qhia tias muaj tsawg dua insolubles hauv nws.
ib qho
Qhov loj me yog qhov zoo dua. Yog tias qhov kev nqus tshwj xeeb yog qhov loj dhau los yog me me, nws yuav yog qhov txiaj ntsig ntawm kev tswj hwm thaum lub sijhawm ua haujlwm.
Sab nraum
Ntshiab HydroxyPropyl methylulose yog visually fluffy thiab muaj qhov tsawg bultity, xws li 0.3-0.4g / ml; Adulterated HPMC muaj cov fluidity zoo dua thiab muaj qhov hnyav dua, uas yog obviously sib txawv ntawm cov khoom muaj tseeb hauv tsos. Cov tsos ntawm qee cov cellulose tshwj xeeb kuj tseem txawv heev ntawm cov kev tshwj xeeb, thiab cov khoom tshwj xeeb tau txheeb xyuas hauv kev nthuav dav.
Cov tshuaj aqueous
Ntshiab HPMC aqueous aqueousous, muaj teeb meem kev hloov pauv, dej khaws nyiaj khaws cia ≥ 90%; Kev Txom Nyem HPMC aqueous daws yog turkid, thiab dej rov qab tswj hwm yog qhov nyuaj kom ncav cuag 70%
Tus swb
Txawm hais tias dawb tsis tuaj yeem txiav txim siab seb HPMC yooj yim siv, thiab yog cov neeg sawv cev kom huv, nws yuav cuam tshuam nws cov kev zoo. Txawm li cas los xij, feem ntau ntawm cov khoom lag luam zoo muaj zoo dawb.
Lub Sijhawm Post: Apr-01-2023