IHydroxypropylmethylcellulose (HPMC) sisilulo seselulosi esisetyenziswa ngokuqhelekileyo ekuqulunqweni kweemveliso ezahlukeneyo, kuquka ulwelo lokuhlamba izitya. Isebenza njenge-thickener eguquguqukayo, ibonelela nge-viscosity kunye nokuzinza kwimiqulu ye-liquid.
Isishwankathelo se-HPMC:
I-HPMC lutshintsho olwenziweyo lweselulosi, ipholima yendalo efumaneka kwiindonga zeeseli zesityalo. Iveliswa ngokuguqula iikhemikhali zeselulosi usebenzisa ipropylene oxide kunye nemethyl chloride. Imveliso ebangelwa yi-polymer e-soluble yamanzi eneempawu ezizodwa ze-rheological.
Indima ye-HPMC kulwelo lokuvasa izitya:
Ulawulo lweViscosity: Omnye wemisebenzi ephambili ye-HPMC kulwelo lokuhlambela izitya kukulawula i-viscosity. Inika ulwelo ukuhambelana okuthile, ukuphucula ukuthungwa kwayo kunye nokuhamba kwayo. Oku kubalulekile ukuqinisekisa ukuba isicoci sihlala phezu komhlaba kwaye siyayisusa ngokufanelekileyo igrisi kunye nentlaka.
Uzinzo: I-HPMC iphucula ukuzinza kokuqulunqwa ngokuthintela ukwahlukana kwesigaba kunye nemvula. Inceda ukugcina iyunifomu yemveliso kwaye izinzile ngokuhamba kwexesha, iqinisekisa ukusebenza okuhambelanayo.
Ukuphucuka kwamagwebu: Ukongeza kwisiphumo sokutyeba, i-HPMC ikwanceda ekuphuculeni iipropathi ezinogwebu zolwelo lokuhlambela izitya. Inceda ukudala i-foam ezinzileyo encedisa kwinkqubo yokucoca ngokubambisa kunye nokususa ukungcola kunye nokungcola.
Ukuhambelana nee-surfactants: Ulwelo lokuhlambela izitya luqulethe izinto ezixutywayo, eziyimfuneko ekwaphuleni igrisi. I-HPMC iyahambelana neentlobo ngeentlobo ze-surfactants, iyenza ibe sisityebi esifanelekileyo kwezi mveliso.
Iingqwalasela zokusiNgqongileyo: I-HPMC ithathwa njengenobuhlobo nokusingqongileyo kwaye ikhuselekile ukusetyenziswa kwiimveliso zasekhaya. Iyabola kwaye ayibeki mingcipheko ibalulekileyo kwimpilo yabantu okanye kokusingqongileyo.
Izicelo kunye nemiqulu:
I-HPMC isoloko idityaniswa kwimixube yolwelo lokuvasa izitya ngexesha lenkqubo yokuvelisa. Isixa se-HPMC esisetyenzisiweyo sixhomekeke kwi-viscosity efunwayo kunye nezinye iimfuno ezithile zemveliso. Abaqulunqi baqwalasela izinto ezifana nohlobo lwe-surfactant kunye nokugxila, inqanaba le-pH, kunye neenjongo zokusebenza ngokubanzi.
IHydroxypropyl methylcellulose (HPMC) idlala indima ebalulekileyo njengento etyebisayo ekuhlambeni izitya, ibonelela ngolawulo lwe-viscosity, uzinzo kunye nokuphucuka kogwebu. Ukuhambelana kwayo kunye ne-surfactants kunye nokusingqongileyo kwenza kube lukhetho oludumileyo kwimiqulu yemveliso yokucoca indlu.
Ixesha lokuposa: Jan-29-2024