Iimpawu eziphambili zei-hydroxyethyl methyl cellulose (HEMC)zezi:
1. I-Solubility: i-solubility emanzini kunye nezinye i-solvents eziphilayo, i-HEMC inokuchithwa emanzini abandayo, ukugxininiswa kwayo okuphezulu kunqunywe kuphela yi-viscosity, i-solubility iyahluka kunye ne-viscosity, i-viscosity ephantsi, i-solubility enkulu.
2. Ukumelana netyuwa: Iimveliso ze-HEMC ziyi-ethers ze-cellulose ezingenayo i-ionic kwaye azikho i-polyelectrolytes, ngoko ke phambi kweetyuwa zetsimbi okanye i-electrolyte yezinto eziphilayo, zizinzile kwizisombululo zamanzi, kodwa ukongezwa ngokugqithiseleyo kwe-electrolytes kunokubangela i-gelation kunye nemvula.
3. Umsebenzi womphezulu: Ngenxa yokuba isisombululo samanzi sinomsebenzi womsebenzi ongaphezulu, sinokusetyenziswa njenge-agent ekhuselayo ye-colloid, i-emulsifier kunye ne-dispersant.
4. Thermal gel: Xa iHEMCisisombululo se-aqueous yemveliso sifudunyezwa kwiqondo lokushisa elithile, liba li-opaque, i-gels, kwaye yenze i-precipitate, kodwa xa ipholile ngokuqhubekayo, ibuyela kwimeko yesisombululo sokuqala, kwaye le gel kunye nemvula yenzeke. Iqondo lokushisa lixhomekeke ikakhulu kwizinto zokuthambisa zabo, i-aids yokumisa, i-colloids yokukhusela, i-emulsifiers, njl.
5. I-Metabolic inertness kunye nevumba eliphantsi kunye nevumba: I-HEMC isetyenziswa kakhulu ekutyeni kunye namayeza ngenxa yokuba ayinayo i-metabolized kwaye inevumba eliphantsi kunye nevumba elimnandi.
6. I-Antifungal: I-HEMC inekhono elihle le-antifungal kunye nokuzinza okuhle kwe-viscosity ngexesha lokugcinwa kwexesha elide.
7. Ukuzinza kwe-PH: I-viscosity yesisombululo se-HEMC yemveliso yamanzi ayinakuchaphazeleka nge-asidi okanye i-alkali, kwaye ixabiso le-pH lizinzile kuluhlu lwe-3.0-11.0.
Ukusetyenziswa kweIHydroxyethyl methyl cellulose (HEMC):
I-Hydroxyethyl methyl cellulose ingasetyenziselwa njenge-agent ekhuselayo ye-colloid, i-emulsifier kunye ne-dispersant ngenxa yomsebenzi wayo osebenzayo kwisisombululo esimanzi. Umzekelo wokusetyenziswa kwawo ngolu hlobo lulandelayo: Umphumo we-hydroxyethyl methyl cellulose kwiipropati zesamente. IHydroxyethyl methyl cellulose ngumgubo omhlophe ongenavumba, ongenancasa, ongenatyhefu onyibilika emanzini abandayo ukwenza isisombululo esicacileyo, esibonakalayo. Ineempawu zokuqina, ukubopha, ukusabalalisa, i-emulsifying, ifilimu-ifom, ukumisa, i-adsorbing, i-gelling, i-surface-active, igcina umswakama kunye nokukhusela i-colloids. Ngenxa yomsebenzi osebenzayo womphezulu wesisombululo samanzi, sinokusetyenziswa njenge-agent ekhuselayo ye-colloid, i-emulsifier kunye ne-dispersant. I-Hydroxyethyl methyl cellulose isisombululo samanzi sine-hydrophilicity elungileyo kwaye sisixhobo sokugcina amanzi ngokufanelekileyo.
Ixesha lokuposa: Apr-25-2024