Umehluko phakathi kwe-HPMC vs methylcellulose

I-HPMC (Hydroxypropyl methylcellulose) kanye ne-methylcellulose zombili zivame ukusetshenziswa ezimbonini zokudla, ezekhemisi, nezokunakekelwa komuntu siqu njengamajini, ama-stabilizer, ama-emulsifiers, nama-ejenti abophayo. Ngenkathi babelana ngokufana okuthile, kunomehluko othile phakathi kwe-HPMC ne-methylcellulose:

1. Ukwakheka kwamakhemikhali: Kokubili i-HPMC ne-methylcellulose athathwe ku-cellulose, i-polysaccharide eyenzeka ngokwemvelo. I-HPMC iyiselulosi eshintshiwe, lapho amanye amaqembu e-hydroxyl ku-molecule ye-cellulose athathelwe indawo ngamaqembu e-hydroxypropyl. I-Methylcellulose futhi i-cellulose eguquliwe, lapho amanye amaqembu e-hydroxyl ku-molecule ye-cellulose athathelwe indawo ngamaqembu e-methyl.
2. Ukunyibilika: I-HPMC incibilika kakhulu emanzini kune-methylcellulose, okwenza kube lula ukuyincibilikisa nokusebenzisa ekuhlanganiseni.
3. I-Viscosity: I-HPMC ine-viscosity ephakeme kune-methylcellulose, okusho ukuthi inezinto ezingcono zokujiya futhi ingakha ukufana okukhulu ekubunjweni.
4. I-Gelation: I-Methylcellulose inamandla okwenza ijeli lapho ishisa bese ipholiswa, kuyilapho i-HPMC ingenayo le ndawo.
5. Izindleko: I-HPMC ivamise ukubiza kakhulu kune-methylcellulose.

Sekukonke, ukukhetha phakathi kwe-HPMC ne-methylcellulose kuzoncika ekusetshenzisweni okukhethekile nasezimpahleni ezifiswayo zokwakheka. I-HPMC ingancanyelwa ngenxa yokuncibilika kwayo kanye nokungaguquguquki okukhulu, kuyilapho i-methylcellulose ingase ikhethwe ngenxa yekhono layo lokwenza amajeli.