Cellulose Ether Viscosity Test

The viscosity eali-cellulose ethers, joalo ka Hydroxypropyl Methylcellulose (HPMC) kapa Carboxymethyl Cellulose (CMC), ke parameter ea bohlokoa e ka amang ts'ebetso ea bona lits'ebetsong tse fapaneng. Viscosity ke tekanyo ea hore mokelikeli o hana ho phalla, 'me o ka susumetsoa ke lintho tse kang ho tsepamisa mohopolo, mocheso le tekanyo ea ho nkela cellulose ether sebakeng sa eona.

Mona ke tataiso e akaretsang mabapi le hore na liteko tsa viscosity bakeng sa cellulose ether li ka etsoa joang:

Mokhoa oa Viscometer oa Brookfield:

Brookfield viscometer ke sesebelisoa se tloaelehileng se sebelisetsoang ho lekanya viscosity ea maro. Mehato e latelang e fana ka kemiso ea mantlha ea ho etsa tlhahlobo ea viscosity:

1. Tokiso ea Mohlala:
   • Lokisetsa motsoako o tsejoang oa tharollo ea cellulose ether. Tlhokomelo e khethiloeng e tla itšetleha ka litlhoko tse khethehileng tsa kopo.
2. Tekano ea Mocheso:
   • Netefatsa hore sampole e lekantsoe le mocheso o lakatsehang oa teko. Viscosity e ka itšetleha ka mocheso, kahoo ho hlahloba mocheso o laoloang ke habohlokoa bakeng sa litekanyo tse nepahetseng.
3. Calibration:
   • Beakanya viscometer ea Brookfield u sebelisa maro a tloaelehileng a calibration ho netefatsa ho baloa ho nepahetseng.
4. Ho kenya Mohlala:
   • Laela palo e lekaneng ea tharollo ea cellulose ether ka kamoreng ea viscometer.
5. Khetho ea Spindle:
   • Khetha spindle e loketseng ho latela mefuta e lebelletsoeng ea viscosity ea sampole. Li-spindles tse fapaneng li fumaneha bakeng sa mefuta e tlaase, e bohareng le e phahameng ea viscosity.
6. Tekanyo:
   • Kenya seluloana ka har'a sampole, 'me u qale viscometer. The spindle e potoloha ka lebelo le sa khaotseng, 'me ho hanyetsa ho potoloha ho lekanngoa.
7. Lintlha tsa ho Rekota:
   • Rekota 'malo oa viscosity ho tsoa ponts'o ea viscometer. Tekanyo ea tekanyo hangata e ka centipoise (cP) kapa millipascal-seconds (mPa·s).
8. Pheta Litekanyo:
   • Etsa litekanyo tse ngata ho etsa bonnete ba ho ikatisa. Haeba viscosity e fapana ho ea ka nako, ho ka 'na ha hlokahala litekanyo tse eketsehileng.
9. Tlhahlobo ea Lintlha:
   • Sekaseka lintlha tsa viscosity maemong a litlhoko tsa kopo. Lisebelisoa tse fapaneng li ka ba le sepheo se ikhethileng sa viscosity.

Lintlha tse Amang Viscosity:

1. Tsepamiso ea maikutlo:
   • Metsoako e phahameng ea tharollo ea cellulose ether hangata e baka li-viscosity tse phahameng.
2. Mocheso:
   • Viscosity e ka ba e sa rateheng mocheso. Lithempereichara tse phahameng li ka fokotsa viscosity.
3. Degree ea Phapanyetsano:
   • Tekanyo ea ho nkela sebaka sa cellulose ether e ka ama ho tiea ha eona, ka lebaka leo, le viscosity ea eona.
4. Sekhahla sa Shear:
   • Viscosity e ka fapana ho ea ka sekhahla sa ho kuta, 'me li-viscometer tse fapaneng li ka sebetsa ka litekanyetso tse fapaneng tsa ho kuta.

Kamehla latela litataiso tse fanoeng ke moetsi oa cellulose ether bakeng sa tlhahlobo ea viscosity, kaha mekhoa e ka fapana ho latela mofuta oa cellulose ether le ts'ebeliso ea eona e reriloeng.