I-Cellulose Ether Viscosity Test

I-viscosity yei-cellulose ethers, njenge-Hydroxypropyl Methylcellulose (HPMC) noma i-Carboxymethyl Cellulose (CMC), iyipharamitha ebalulekile engaba nomthelela ekusebenzeni kwazo ezinhlelweni ezihlukene. I-viscosity isilinganiso sokumelana koketshezi nokugeleza, futhi ingathonywa izici ezifana nokugxilisa ingqondo, izinga lokushisa, nezinga lokushintshaniswa kwe-cellulose ether.

Nansi inkomba ejwayelekile yokuthi ukuhlolwa kwe-viscosity kwe-cellulose ether kungenziwa kanjani:

Indlela ye-Viscometer yaseBrookfield:

I-Brookfield viscometer iyithuluzi elivamile elisetshenziselwa ukukala i-viscosity yoketshezi. Izinyathelo ezilandelayo zinikeza uhlaka oluyisisekelo lokuhlola i-viscosity:

1. Ukulungiselela Isampula:
   • Lungiselela ukugxila okwaziwayo kwesixazululo se-cellulose ether. Ukugxila okukhethiwe kuzoncika ezidingweni ezithile zesicelo.
2. Ukulinganisa Izinga lokushisa:
   • Qinisekisa ukuthi isampula lilingana nezinga lokushisa olifunayo. I-viscosity ingancika kumazinga okushisa, ngakho ukuhlola ezingeni lokushisa elilawulwayo kubalulekile ukuze kulinganiswe okunembile.
3. Ukulinganisa:
   • Linganisa i-viscometer yase-Brookfield usebenzisa uketshezi lokulinganisa olujwayelekile ukuze uqinisekise ukufundwa okunembile.
4. Ilayisha Isampula:
   • Layisha inani elanele lesisombululo se-cellulose ether ekamelweni le-viscometer.
5. Ukukhetha i-Spindle:
   • Khetha i-spindle efanelekile ngokusekelwe ebangeni le-viscosity elilindelekile lesampula. Ama-spindle ahlukene ayatholakala kumabanga aphansi, aphakathi nendawo naphezulu e-viscosity.
6. Isilinganiso:
   • Gxilisa i-spindle kusampula, bese uqala i-viscometer. I-spindle ijikeleza ngesivinini esingaguquki, futhi ukumelana nokujikeleza kuyalinganiswa.
7. Idatha Yokurekhoda:
   • Qopha ukufundwa kwe-viscosity kusuka kusibonisi se-viscometer. Iyunithi yokulinganisa imvamisa iku-centipoise (cP) noma imizuzwana emillipascal (mPa·s).
8. Phinda Izilinganiso:
   • Yenza izilinganiso eziningi ukuze uqinisekise ukuzala kabusha. Uma i-viscosity ishintsha ngokuhamba kwesikhathi, kungase kudingeke izilinganiso ezengeziwe.
9. Ukuhlaziywa Kwedatha:
   • Hlaziya idatha ye-viscosity kumongo wezidingo zohlelo lokusebenza. Izinhlelo zokusebenza ezahlukene zingase zibe nezinhloso ezithile ze-viscosity.

Izinto Ezithinta I-Viscosity:

1. Ukugxila:
   • Ukugxila okuphezulu kwezixazululo ze-cellulose ether kuvame ukuholela ekubonakaleni okuphezulu.
2. Izinga lokushisa:
   • I-viscosity ingazwela ukushisa. Amazinga okushisa aphezulu anganciphisa i-viscosity.
3. Izinga Lokushintsha:
   • Izinga lokushintshwa kwe-cellulose ether lingaba nomthelela ekuqineni kwayo futhi, ngenxa yalokho, i-viscosity yayo.
4. Isilinganiso se-Shear:
   • I-viscosity ingase ihluke ngesilinganiso sokugunda, futhi ama-viscometer ahlukene angase asebenze ngamanani ahlukene okugunda.

Ngaso sonke isikhathi landela imihlahlandlela ethile enikezwe umenzi we-cellulose ether ukuze kuhlolwe i-viscosity, njengoba izinqubo zingase zihluke ngokusekelwe ohlotsheni lwe-cellulose ether kanye nokusebenza okuhlosiwe.