Kwenziwa kanjani i-Hypromellose?

I-Hypromellose, eyaziwa nangokuthi i-hydroxypropyll methylcellulose (HPMC), iyi-polymer ye-semisynthetic etholakala ku-cellulose, okuvela ngokwemvelo polysaccharide etholakala ezindongeni zeseli zezitshalo. Ukukhiqizwa kwe-Hypromellose kufaka izinyathelo eziningana, kufaka phakathi ukusheshisa nokuhlanzwa. Nakhu umbono wokuthi i-Hypromellose yenziwa kanjani:

1. Ukuthambisa kwe-Cellulose: Inqubo iqala ngokuthola i-cellulose ye-sourcing, engatholakala kwimithombo yezitshalo ehlukahlukene efana ne-solipun pulp, imicu yekotini, noma ezinye izitshalo ze-fibrous. I-cellulose ikhishwe ngokujwayelekile kule mithombo ngochungechunge lwezinqubo zamakhemikhali namakhemikhali ukuthola izinto ezihlanziwe ze-cellulose.
2. I-Eletherafication: I-cellulose ehlanziwe ithola inqubo yokuguqulwa kwamakhemikhali ebizwa ngokuthi ukuthengiswa, lapho kungeniswa khona amaqembu we-hydroxypropyl kanye ne-methyl. Lokhu kuguqulwa kutholakala ngokuphendula i-cellulose nge-propelene oxide (ukwethula amaqembu we-hydroxypropyl) kanye ne-methyl chloride (ukwethula amaqembu we-methyl (ukwethula amaqembu we-methyl) ngaphansi kwezimo ezilawulwayo.
3. Ukuhlanzwa: Ngemuva kokuthezeka, umkhiqizo ophumela uvinjezelwa ukususa ukungcola kanye nemikhiqizo eyenziwayo kusuka ekuphenduleni. Lokhu kungafaka ukugeza, ukufona, kanye namanye amasu okuhlukanisa ukuthola umkhiqizo we-phrpromellose.
4. Ukomisa nokugaya: I-rypromellose ehlanziwe iyomiswa ukususa umswakama owengeziwe futhi igaye i-powder noma ama-granule amahle. Ubukhulu bezinhlayiyana kanye ne-morphology ye-hypromellose powder kungalawulwa ukuze kuhlangatshezwane nezidingo ezithile zohlelo lokusebenza oluhlukile.
5. Ukulawulwa Kwekhwalithi: Kuyo yonke inqubo yokwenza izinto, izindlela zokulawula ikhwalithi ziyasetshenziswa ukuqinisekisa ubumsulwa, ukungaguquguquki nokusebenza komkhiqizo we-hypromellose. Lokhu kufaka phakathi ukuhlolwa kwamapharamitha anjengesisindo se-molecular, i-viscosity, i-solubity, nezinye izakhiwo zomzimba nezamakhemikhali.
6. Ukupakishwa nokusabalalisa: Uma umkhiqizo we-hypromellose uhlangabezana nezinto ezifinyelelekayo, uhlanganiswe ezitsheni ezifanele futhi usatshalaliswa kwizimboni ezahlukahlukene ukuze uzisebenzise emikhakheni, imikhiqizo yokudla, izimonyo, kanye nezinye izinhlelo zokusebenza.

Sekukonke, ukukhiqizwa kwe-Hypromellose kufaka uchungechunge lokuphendula kwamakhemikhali alawulwa kanye nezinyathelo zokuhlanza ezisetshenziswe ku-cellulose, okuholele ekutheni i-polymer eguquguqukayo futhi esetshenziswe kabanzi nge-polymer enezicelo ezahlukahlukene kwizimboni ezahlukahlukene.