Indlela elula yokuhlonza i-hydroxypropyl methylcellulose

I-Cellulose isetshenziswa kabanzi kumakhemikhali kaphethiloli, kwezokwelapha, ekwenzeni amaphepha, ezimonyweni, ezintweni zokwakha, njll. Iyisengezo esisebenziseka ngezindlela eziningi, futhi ukusetshenziswa okuhlukile kunezidingo ezahlukene zokusebenza kwemikhiqizo ye-cellulose.

Lesi sihloko sethula kakhulu indlela yokusebenzisa kanye nokuhlonza ikhwalithi ye-HPMC (i-hydroxypropyl methylcellulose ether), uhlobo lwe-cellulose oluvame ukusetshenziswa ku-putty powder evamile.

I-HPMC isebenzisa ukotini ocoliwe njengezinto eziyinhloko zokusetshenziswa. Isebenza kahle, intengo ephezulu kanye nokumelana okuhle kwe-alkali. Ifaneleka kakhulu ku-putty evamile engangeni manzi kanye nodaka lwe-polymer olwenziwe ngesamente, i-calcium yelime kanye nezinye izinto eziqinile ze-alkali. Ububanzi be-viscosity buyi-40,000-200000S.

Nazi izindlela eziningana zokuhlola ikhwalithi ye-hydroxypropyl methylcellulose ezifingqiwe yi-Xiaobian. Woza uzofunda nge-Xiaobian~

1. Ubumhlophe:

Yiqiniso, isici esibalulekile ekunqumeni ikhwalithi ye-hydroxypropyl methylcellulose akumele kube ubumhlophe nje. Abanye abakhiqizi bazofaka izinto zokwenza mhlophe enqubweni yokukhiqiza, kulokhu, ikhwalithi ayinakwahlulelwa, kodwa ubumhlophe be-hydroxypropyl methylcellulose esezingeni eliphezulu buhle kakhulu.

2. Ubunono:

I-hydroxypropyl methylcellulose ivame ukuba nobukhulu obungama-mesh angu-80, ama-mesh angu-100 kanye nama-mesh angu-120. Ubukhulu bezinhlayiya buncane kakhulu, futhi ukuncibilika kanye nokugcinwa kwamanzi nakho kuhle. Lena yi-hydroxypropyl methylcellulose esezingeni eliphezulu.

3. Ukudlulisa ukukhanya:

Faka i-hydroxypropyl methylcellulose emanzini bese uyincibilikisa emanzini isikhathi esithile ukuze uhlole i-viscosity kanye nokucaca. Ngemva kokuba ijeli seyakhiwe, hlola ukuhanjiswa kwayo kokukhanya, lapho ukuhanjiswa kokukhanya kungcono, kulapho izinto ezinganyibiliki kanye nobumsulwa kuphakama khona.

4. Amandla adonsela phansi athile:

Uma amandla adonsela phansi athile emakhulu, kungcono, ngoba lapho amandla adonsela phansi athile esinda, okuqukethwe kwe-hydroxypropyl methyl kuyo kuphakeme, kulapho ukugcinwa kwamanzi kuba ngcono khona.