Usuku lwePosi:3,Ujuli,2023

Hydroxypropyl methyl cellulose(HPMC)Isetshenziswa ngokuvamile ku-putty powder ngokubonakala kuka-100000, ngenkathi udaka zinezidingo eziphakeme kakhulu zokuvuleka futhi kufanele zikhethwe ngokubonakala kuka-150000 ukuze kusetshenziswe kangcono. Umsebenzi obaluleke kakhulu wehydroxypropyl methyl celluloseukugcina amanzi, kulandelwe ukuqina. Ngakho-ke, ku-putty powder, inqobo nje uma ukugcinwa kwamanzi kufinyelelwa futhi i-viscosity iphansi, kungenzeka futhi. Ngokuvamile, kuphakama i-viscosity, kungcono ukugcinwa kwamanzi. Kodwa-ke, lapho i-viscoty yeqa i-100000, umphumela wokuvuthwa kwamanzi akubalulekile.

Ibanga Lokwakha leJufuHydroxypropyl methyl celluloseUkwehlukaniswa nge-viscosity, ngokuvamile kuhlukaniswe ngezinhlobo ezilandelayo:

1. I-Viscosity ephansi: I-400 viscosity cellule Ukubonakaliswa okuphansi, ukugeleza okuhle, nangemva kwalokho, kuzolawula ukugcinwa kwamanzi komhlaba. Ukopha akubonakali, i-shrinkage incane, futhi ukuqhekeka kuyancishiswa. Kungamelana nokwenza i-sediment, kuthuthukise ukugeleza nokuphazamiseka.
2. I-Medium tow Moculity: 20000 kuya ku-50000 i-viscosity cellule Ukubonakala okuphansi, ukugcinwa kwamanzi okuhle, ukusebenziseka okuhle, kanye nokwengezwa kwamanzi aphansi,
I-3. I-Medium Viscosity: 75000-100000 I-Viscosity Cellulose, Isetshenziselwa Kakhulu Ingaphakathi Nangaphandle Lidonga Putty. I-Viscosity Elinganiselayo, Ukugcinwa Okuhle Kwamanzi, Nedrape Yokwakhiwa Okuhle.
I-4. Udaka akulula ukuwa futhi ulenga, ukuthuthukisa ukwakhiwa.
Ngokuvamile, kuphakama i-viscosity, kungcono ukugcinwa kwamanzi. Ngakho-ke, amakhasimende amaningi akhetha ukusebenzisa i-audium viveluose cellule
I-viscosity yeI-HPMCilingana kakhulu namazinga okushisa, ngamanye amagama, i-viscosity inyuka ngokwehla kwezinga lokushisa. I-viscosity yalo mkhiqizo isho ukuthi isixazululo sayo esingu-2% sisemazingeni okushisa angama-20 degrees Celsius, futhi imiphumela yokuhlola inembile.
Kuzinhlelo ezithile, ukunakwa kufanele kukhokhwe ezindaweni ezinomehluko omkhulu wokushisa phakathi kwehlobo nobusika, futhi kunconywe ngokuqinile ukusebenzisa ukubonakala okuphansi ebusika. Ngaphandle kwalokho, uma i-viscosity iphansi, ukubonakala kwe-cellulose kuzokwanda futhi ukuklwebheka kuzoba nzima.