Hydroxypropyl methylcellulose yog sivyog cov khoom siv dav siv. Tshwj xeeb tshaj yog nyob rau hauv kev siv cov hmoov putty. Muaj ntau yam khoom siv xws li: ntsev tsis kam, kev ua haujlwm saum npoo, thermal gelation, PH stability, dej tuav, adhesion, thiab lwm yam. Txawm li cas los xij, hydroxypropyl methylcellulose kuj muaj qee yam teeb meem. Muaj peb qhov laj thawj rau cov teeb meem:
1. Kev siv hydroxypropyl methylcellulose
2, yog tus nqi ntawm cov khoom siv hauv paus
3. Nws yog ib qho tsim nyog ua ke ntawm fillers hauv cov mis
Piv txwv li, cov qauv viscosity ntawm hydroxypropyl methylcellulose yog siv tsis raug, cov khoom siv hauv paus yog ntau dhau, qhov muab tub lim zoo dhau lawm, thiab lwm yam kom txog thaum cov kev tswj xyuas raug coj los siv rau cov laj thawj tshwj xeeb, xws li kev siv cov hydroxypropyl methylcellulose kom raug nrog cov qauv viscosity ntawm 100,000 Cov khoom, qhov ntau npaum li cas ntawm 3 kg yuav tsum tsis pub tshaj 5. hmoov polyvinyl cawv yuav tsum tsis txhob loj heev, tsis siab tshaj 6%. Cov muab tub lim fineness feem ntau siv 325 mesh pa muab tub lim, thiab thaum nws tshaj 600 mesh, kev tsim kho yuav raug cuam tshuam. Nco ntsoov tias qhov xwm txheej saum toj no yuav tsum daws qhov teeb meem ntawm cov khoom tsis zoo ntawm cov khoom siv khib nyiab.
Post lub sij hawm: Oct-20-2022