HPMC gel kub

Ntau tus neeg siv tsis tshua them sai sai rau cov teeb meem ntawm hydroxypropyl cellulose hpmc gel kub. Tam sim no, HydroxyPropyf methyl cellulose hpmc feem ntau yog qhov txawv ntawm viscosity, tab sis rau qee qhov chaw tshwj xeeb, tsuas yog cov khoom siv viscosity, tsuas yog cov khoom lag luam yog xav. Tsis txaus, cov lus qhia luv luv qhia txog hydroxypropyl methylcellose hpmc gel kub.

Cov ntsiab lus ntawm methoxy pab pawg yog hais txog kev kawm ntawv qib siab ntawm lub koom tes ntawm cellulose ether. Cov ntsiab lus ntawm mexoxy pab pawg tuaj yeem hloov kho los ntawm kev tswj cov mis, cov tshuaj tiv thaiv kub thiab cov khoom siv ntawm lub sijhawm. Nyob rau tib lub sijhawm, theem degretification cuam tshuam rau cov degree ntawm hydroxyethyl lossis hydroxypropyl. Yog li ntawd, cov dej khaws cia ntawm cellulose ether nrog siab gel kub yog feem ntau me ntsis zuj zus. Cov txheej txheem ntau lawm tau tshawb nrhiav, yog li nws tsis yog vim metroxy cov ntsiab lus yog tsawg, tus nqi ntawm cellulose ether yog tsawg, ntawm qhov tsis tooj, tus nqi yuav siab dua.

Qhov tsim nyog ntawm hydroxypropyl cellulose hpmc hydroxypropyyl cov ntsiab lus yog 25%. Lub gel kub yog qhov tseem ceeb tshaj plaws rau kev thov ntawm cellulose ether. Thaum lub teb kub siab tshaj qhov kub thiab txias tshaj, lub cellulose ether yuav precaiss tawm hauv dej thiab poob nws cov dej khaws cia. Tsim nyog lub cellulose ether kub yog 65 degrees, uas tuaj yeem ua tau txoj kev xav tau ntawm cov tshuaj khib thiab tsuas yog rau ib puag ncig tshwj xeeb). Yog tias koj yuav Lub Zog HPMC, thov qhia ua ntej yog tias koj muaj cov kev xav tau tshwj xeeb.