Instant type hydroxypropyl methylcellulose

1. Cov ntsiab lus dej siab dhau lawm, ua rau cov ntsiab lus tsawg dhau, uas yog sib npaug los txo cov concentration ntawm cov tshuaj.
2. Lub viscosity tsawg, thiab qee qhov cim viscosity tsis sib xws rau qhov tseeb viscosity.
3. Do txawm tias tom qab ntxiv cov khoom xyaw, txwv tsis pub nws yuav yog txheej txheej, nyias rau saum thiab tuab hauv qab.
4. PH tus nqi ntawm cov dej: Yog tias PH tus nqi ntawm cov dej ntau dua 8, txawm tias nws ntxiv rau hauv kev nplawm, nws yuav tsis tsim cov kua nplaum sai. (Tab sis nws yuav tsis qeeb li 20 teev). Yog tias tus nqi pH ntawm cov dej tsawg dua 6.5, nws tuaj yeem nplawm txawm tias tom qab ntxiv cov khoom. Tab sis nws kuj yuav tsum tau muaj ib lub sij hawm rau dissolving. Lub sijhawm no tseem cuam tshuam nrog tus nqi pH. Qhov pH qis dua, lub sijhawm ntev dua. Nws raug nquahu kom ntxiv nws hauv dej nruab nrab, thiab tom qab ntawd kho tus nqi pH rau alkaline, thiab nws yuav ua kom nrawm nrawm. Tau kawg, feem ntau tsis tas yuav muaj kev hloov kho tshwj xeeb hauv kev siv tiag tiag, thiab feem ntau lwm cov ntaub ntawv yuav cia li nce tus nqi pH.