I-HPMC, ekwabizwa ngokuba yi-hydroxypropyl methylcellulose, yipolymer enyibilikayo emanzini esetyenziswa kakhulu kumashishini okuthambisa, amayeza kunye nokutya. I-polymer ivela kwi-cellulose, into yendalo efumaneka kwizityalo. HPMC is a thickener ebalaseleyo esetyenziswa ngokubanzi ukwandisa viscosity izisombululo ezahlukeneyo. Ikhono layo lokuvelisa i-thixotropic gels nayo yenza ukuba ibe yinto ethandwayo kwizicelo ezininzi.
Iipropati ezityebileyo ze-HPMC
Iipropati ezityebileyo ze-HPMC ziyaziwa kushishino. I-HPMC inokwandisa i-viscosity yesisombululo ngokwenza inethiwekhi yejeli ebamba iimolekyuli zamanzi. Amasuntswana e-HPMC enza uthungelwano lwejeli xa efakwe emanzini kwaye atsale omnye komnye ngeebhondi zehydrogen. Inethiwekhi idala i-matrix ene-dimensional emithathu eyandisa i-viscosity yesisombululo.
Enye yeenzuzo eziphambili zokusebenzisa i-HPMC njenge-thickener kukuba inokujiya isisombululo ngaphandle kokuchaphazela ukucaca kwayo okanye umbala. I-HPMC i-polymer engeyiyo ionic, oku kuthetha ukuba ayifaki nayiphi na intlawulo kwisisombululo. Oku kuyenza ilungele ukusetyenziswa kwimixube ecacileyo okanye engafihliyo.
Enye inzuzo ye-HPMC kukuba inokutyebisa izisombululo kwiindawo eziphantsi. Oku kuthetha ukuba kuphela isixa esincinci se-HPMC esifunekayo ukufezekisa i-viscosity efunekayo. Oku kunokonga iindleko kubavelisi kunye nokubonelela abathengi ngeemveliso ezinoqoqosho ngakumbi.
Thixotropy of HPMC
Thixotropy yipropati yempahla yokunciphisa i-viscosity xa iphantsi koxinzelelo lwe-shear kwaye ibuyele kwi-viscosity yayo yasekuqaleni xa uxinzelelo lususiwe. I-HPMC yinto ye-thixotropic, ithetha ukuba isasazeka okanye igalele ngokulula phantsi koxinzelelo lwe-shear. Nangona kunjalo, xa uxinzelelo lususiwe, lubuyela ekunamatheleni kwaye lujiye kwakhona.
Iimpawu ze-thixotropic ze-HPMC zenza ukuba zilungele izicelo ezininzi. Umzekelo, isetyenziswa ngokuqhelekileyo kwipeyinti, njengengubo engqindilili phezu komhlaba. Iipropati ze-thixotropic ze-HPMC ziqinisekisa ukuba iingubo zihlala phezu komhlaba ngaphandle kokugubha okanye ukuqhuba. I-HPMC ikwasetyenziswa kushishino lokutya njengento etyebisayo yeesosi kunye nezinxibo. Iimpawu ze-thixotropic ze-HPMC ziqinisekisa ukuba i-sauces okanye i-dressing ayivuthi kwiipuni okanye iipleyiti, kodwa endaweni yoko ihlala ingqindilili kwaye ihambelana.
I-HPMC yipolymer eguquguqukayo enezicelo ezininzi kumashishini ahlukeneyo. Iimpawu zayo zokuqina kunye neempawu ze-thixotropic zenza kube yinto efanelekileyo kwi-cosmetic, i-pharmaceutical and formulations yokutya. I-HPMC yi-thickener egqwesileyo, inyusa i-viscosity yesisombululo ngaphandle kokuchaphazela ukucaca kwayo okanye umbala. Iimpawu zayo ze-thixotropic ziqinisekisa ukuba isisombululo asibi kakhulu okanye sincinci, kuxhomekeke kwisicelo. I-HPMC sisithako esibalulekileyo kwiimveliso ezininzi, kwaye izibonelelo zayo ezininzi ziyenza ibe lukhetho oludumileyo kubenzi kunye nabathengi.
Ixesha lokuposa: Aug-25-2023