I-HPMC i-cotton cellulose ecocekileyo kakhulu njengento ekrwada, phantsi kweemeko ze-alkaline nge-etherification ekhethekileyo kunye nokulungiswa.I-HPMC emhlophe okanye i-whitish powder iyancipha ngokunciphisa umxholo we-methoxide, ukwanda kwe-gel point, ukuncipha kwe-solubility yamanzi kunye nokunciphisa umsebenzi ongaphezulu.
I-HPMC inamandla okuqina, ukumelana netyuwa, umgubo ophantsi wothuthu, ukuzinza kwe-pH, ukugcinwa kwamanzi, ukuzinza kwe-dimensional, ukubunjwa kwefilimu egqwesileyo, kunye noluhlu olubanzi lokuxhathisa i-enzyme, ukusabalalisa kunye nokunamathela.
I-HPMC, iintlobo ze-Hydroxypropyl Methylcellulose ze-ether ze-cellulose ezingenayo i-ionic, ezingumgubo omhlophe ukuya kumbala omhlophe, osebenza njenge-thickener, i-binder, ifilimu-yangaphambili, i-surfactant, i-colloid yokukhusela, i-lubricant, i-emulsifier kunye nokumiswa kunye noncedo lokugcina amanzi. Ukongeza, kukho iintlobo ze-cellulose ethers zibonisa iipropathi ze-thermal gelation, inertness ye-metabolic, ukumelana ne-enzyme, ivumba eliphantsi kunye nencasa, kunye nokuzinza kwe-PH.
Ngenxa yentaphane yeepropathi, i-HPMC ihlala isetyenziselwa ukufaka endaweni yezinye izongezo ezininzi ezinoxinzelelo olusezantsi, isenza i-HPMC ibe sisongezo esisebenza ngokumangalisayo nesisebenzayo kwindawo yokuncamathelisa, ukwakhiwa, ukutya, iimveliso zasekhaya, amayeza kunye njl.
| Igama lemveliso | HPMC | ||
| umxholo we-methoxy | 28.0-30.0 27.0-30.0 19.0-24.0 | ||
| umxholo wehydroxypropyl | 7.0-12.0 4.0-7.5 4.0-12.0 | ||
| ubushushu be-gelation | 58-64 62-68 70-90 | ||
| ukufuma | ≤5% | ||
| Uthuthu | ≤1% | ||
| PH Ixabiso | 4-8 | ||
| Imbonakalo | Umgubo weWhie | ||
| Ukomelela | 80-100 uluhlu | ||
| Viscosity | I-300-200,000 Iyakwazi ukumiselwa | ||
| I-Re HPMC inyuswe ngokunciphisa umxholo we-methoxy, i-gel point ukunyibilika kwamanzi kunye nomsebenzi womphezulu nawo unqabile. Kuxhomekeke kwimeko yabathengi | |||
Ixesha lokuposa: Mar-15-2021