I-Hydroxypropyl Methylcellulose, eyaziwa nangokuthi i-HPMC, i-Ether ether ye-Anulsulac ether etholakala kukotini ecwengekile, impahla yemvelo ye-polymer, ngochungechunge lwezinqubo zamakhemikhali. Kuyimpuphu emhlophe noma ephuzi kancane enyakazisa kalula emanzini. Ake sixoxe ngendlela yokuchithwa kwe-hydroxypropylylylylyl.
1. I-hydroxypropyllylylylys isetshenziswa ikakhulukazi njengesengezo se-putty powder, udaka kanye ne-glue. Kungezwe udaka kasimende, lungasetshenziswa njenge-ejenti yokugcina amanzi nokubuyiselwa emuva ukwandisa ukungakwazi; ingezwe ku-Putty Powder ne-glue, ingasetshenziswa njenge-binder. Ukuze uthuthukise ukusakazeka futhi unwebe isikhathi sokusebenza, sithatha i-Qingquan Cellulose njengesibonelo sokuchaza indlela yokuchithwa kwe-hydroxypropyllylylylyl.
2. I-hydroxyproppropyll methylcellulose okokuqala ivuselelwa futhi ihlakazeke ngamanzi ashisayo, bese ingezwa ngamanzi abandayo, ivuse futhi ipholile ukuncibilikisa;
Ngokuqondile: Thatha i-1 / 5-1 / 3 yenani elidingekayo lamanzi ashisayo, uvuse kuze kube yilapho umkhiqizo ongeziwe uvuvukala ngokuphelele, bese ufaka ingxenye esele yamanzi ashisayo, angaba ngamanzi abandayo noma avuse izinga lokushisa elifanele (10 ° C) kuze kuchithwe ngokuphelele.
3. Indlela ye-organic solvent ye-solvent:
Shiya i-Hydroxypropylllykyl methylcellulose ku-solvent ye-organic noma uwohloka nge-organic solvent, bese ufaka noma engeza amanzi abandayo ukuwukhipha kahle. I-organic solvent ingaba i-ethanol, ethylene glycol, njll.
4. Uma ukuhlangana noma ukugoqa kwenzeka ngesikhathi sokuchithwa, kungenxa yokuthi ukushukumisa kunganele noma imodeli ejwayelekile ingezwa ngqo emanzini abandayo. Ngalesi sikhathi, vusa ngokushesha.
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Izinyathelo zokuzivikela
I-Hydroxypropylm methylcellulose ihlukaniswe izisulu ezihamba kancane kanye nezinhlobo ezisheshayo. I-Hydroxypropypropylyll methylcellulose ingancibilika ngqo emanzini abandayo.
Isikhathi sePosi: Feb-06-2024