I-Cellulose Ether Viscosity Test

I-viscosity yeI-Cellulose Afers, njenge-hydroxypropyll methylcellulose (HPMC) noma i-carboxymethyl cellulose (CMC), iyipharamitha ebalulekile engathinta ukusebenza kwawo ezinhlelweni ezahlukahlukene. I-Viscosity iyisihlobo sokumelana noketshezi ukugeleza, futhi ingathonywa yizinto ezifana nokuhlushwa, izinga lokushisa kanye nezinga lokufaka esikhundleni se-cellulose ether.

Nasi umhlahlandlela jikelele ekutheni izivivinyo ze-viscosity zingenziwa kanjani izithambiso ze-cellulose.

Indlela ye-Brookfield Viscometer:

I-Brookfield Viscometer iyithuluzi elijwayelekile elisetshenziselwa ukukala ukubonakala koketshezi. Izinyathelo ezilandelayo zinikeza uhlaka oluyisisekelo lokwenza ukuhlolwa kwe-viscosity:

1. Ukulungiswa kwesampula:
   • Lungiselela ukufinyeleleka okwaziwayo kwekhambi le-ether ye-cellulose. Okukhethiwe okukhethiwe kuzoncika kwizidingo ezithile zohlelo lokusebenza.
2. Ukulingana lokushisa:
   • Qinisekisa ukuthi isampula ilingana nokushisa okufunwa kokuhlola. I-Viscosity ingaba nokuncika kokushisa, ngakho-ke ukuhlolwa ekushiseni okulawulwayo kubalulekile ukuze izilinganiso ezinembile.
3. Ukulinganisa:
   • Linganisa i-Brookfield Visecometer usebenzisa uketshezi olujwayelekile lokulinganisa ukuqinisekisa ukufundwa okunembile.
4. Kulayishwa isampula:
   • Layisha inani elanele lesisombululo se-cellulose ether ku-Viscometer Chamber.
5. Ukukhetha kwe-SPINLE:
   • Khetha i-spindle efanelekile ngokususelwa kuhla olulindelekile lwesampula. Izikhonkwane ezahlukene zitholakala kumabanga aphansi, aphakathi nendawo, futhi aphezulu aphezulu.
6. Ukukalwa:
   • Gxila i-spindle kwisampula, bese uqala i-visecometer. I-spindle ijikeleza ngejubane elingakapheli, futhi ukumelana nokujikeleza kulinganiswa.
7. Ukurekhoda Idatha:
   • Qopha ukufundwa kwe-viscosity kusuka ekubonisweni kwe-viscometer. Iyunithi lokulinganisa imvamisa ku-centipoise (CP) noma imizuzwana (ama-MPA).
8. Phinda izilinganiso:
   • Yenza izilinganiso eziningi zokuqinisekisa ukuvela kabusha. Uma i-viscosity iyahlukahluka ngokuhamba kwesikhathi, izilinganiso ezengeziwe zingadingeka.
9. Ukuhlaziywa kwedatha:
   • Hlaziya idatha yokubona kwento kumongo wezidingo zohlelo lokusebenza. Izicelo ezahlukahlukene zingaba nezimbangi ezithile ze-viscosity.

Izici ezithinta i-viscosity:

1. Ukugxila:
   • Ukugxila okuphezulu kwezixazululo ze-cellulose ether kuvame ukubaholela ezinhlelweni eziphakeme.
2. Lokushisa:
   • I-Viscosity ingazwela izinga lokushisa. Ukushisa okuphezulu kunganciphisa ukubonakala.
3. Degree of inhlanganisela:
   • Izinga lokufaka esikhundleni se-cellulose ether lingathinta ukuqina kwalo futhi, ngenxa yalokho, ukubonakala kwalo.
4. Isilinganiso se-Shear:
   • I-Viscosity ingahluka ngezinga le-Shear, futhi ama-vispetor ahlukile angasebenza ngamanani ahlukene we-shear.

Njalo landela imihlahlandlela ethile enikezwe ngumenzi we-cellulose ether ukuthola ukuhlolwa kwe-viscosity, njengoba izinqubo zingahluka ngokuya ngohlobo lwe-cellulose ether kanye nohlelo lwayo oluhlosiwe.