Indlela elula yokuhlonza ye-hydroxypropyl methylcellulose

I-Cellulose isetshenziswa kakhulu ku-petrochemical, imithi, ukwenza iphepha, izimonyo, izinto zokwakha, njll. Isengezo esisebenza ngezindlela eziningi, futhi ukusetshenziswa okuhlukile kunezidingo zokusebenza ezihlukene zemikhiqizo ye-cellulose.

Lesi sihloko sethula ngokuyinhloko ukusetshenziswa kanye nendlela yokuhlonza ikhwalithi ye-HPMC (i-hydroxypropyl methylcellulose ether), izinhlobonhlobo ze-cellulose ezivame ukusetshenziswa ku-putty powder evamile.

I-HPMC isebenzisa ukotini ocolisisiwe njengempahla eluhlaza eyinhloko. Inokusebenza okuhle, intengo ephezulu kanye nokumelana okuhle kwe-alkali. Ifanele i-putty evamile engangeni emanzini kanye nodaka lwe-polymer olwenziwe ngosimende, i-lime calcium nezinye izinto eziqinile ze-alkaline. Ububanzi be-viscosity yi-40,000-200000S.

Okulandelayo izindlela ezimbalwa zokuhlola ikhwalithi ye-hydroxypropyl methylcellulose efingqiwe i-Xiaobian kuwe. Woza uzofunda nge-Xiaobian~

1. Ubumhlophe:

Vele, into enqumayo ekunqumeni ikhwalithi ye-hydroxypropyl methylcellulose ayikwazi ukuba mhlophe nje. Abanye abakhiqizi bazokwengeza ama-agent amhlophe ohlelweni lokukhiqiza, kulokhu, ikhwalithi ayinakuhlulelwa, kodwa ubumhlophe bekhwalithi ephezulu ye-hydroxypropyl methylcellulose buhle ngempela.

2. Ukulunga:

IHydroxypropyl methylcellulose ivamise ukuba nobunono obungamameshi angama-80, anezikhala eziyi-100 kanye nezikhala eziyi-120. Ukucoleka kwezinhlayiya kuhle kakhulu, futhi ukuncibilika nokugcinwa kwamanzi nakho kuhle. Lena i-hydroxypropyl methylcellulose yekhwalithi ephezulu.

3. Ukudlulisa ukukhanya:

Faka i-hydroxypropyl methylcellulose emanzini bese uwancibilikisa emanzini isikhathi esithile ukuze uhlole i-viscosity kanye nokungafihli lutho. Ngemva kokwakhiwa kwejeli, hlola ukudluliswa kwayo kokukhanya, ngcono ukudluliswa kokukhanya, iyanda indaba engenakuncibilika nobumsulwa.

4. Amandla adonsela phansi athile:

Ubukhulu obuthile obudonsela phansi, kuba ngcono, ngoba ubukhulu besisindo esithile buba bukhulu, kuyanda okuqukethwe kwe-hydroxypropyl methyl kuwo, ukugcinwa kwamanzi kangcono.