Ziziphi iimpawu zeMichiza yeHypromellose?

IHydroxypropyl Methylcellulose (HPMC), ekwaziwa ngokuba yiHypromellose, yipolima yokwenziwa ephuma kwiselulosi. Iimpawu zayo zeekhemikhali ziquka:

1. Ukunyibilika: I-HPMC iyanyibilika emanzini kwaye yenza isisombululo esicacileyo xa ixutywe namanzi. I-solubility ye-HPMC ixhomekeke kwiqondo layo lokuthatha indawo (DS) kunye nebakala le-viscosity.
2. I-Viscosity: I-HPMC ifumaneka kumabakala ahlukeneyo e-viscosity, ukusuka kwi-low viscosity ephezulu. I-viscosity ye-HPMC ixhomekeke kubunzima bayo be-molecular, iqondo lokuthatha indawo, kunye noxinaniso.
3. Uzinzo: I-HPMC izinzile phantsi kweemeko eziqhelekileyo zobushushu kunye ne-pH. Iyakwazi ukumelana nokuthotywa kwe-microbial kwaye ayiboli ngokulula.
4. Iimpawu ze-Thermal: I-HPMC inozinzo oluhle lwe-thermal kwaye inokumelana namaqondo okushisa ukuya kuma-200 ° C ngaphandle kokubola.
5. Umsebenzi womphezulu: I-HPMC inomsebenzi womphezulu ngenxa yendalo yayo emhlophe, eyenza ibe luncedo njenge-dispersant kunye ne-emulsifier kwizicelo ezahlukeneyo.
6. I-Hygroscopicity: I-HPMC yi-hygroscopic, oku kuthetha ukuba inotyekelo lokufunxa ukufuma kokusingqongileyo. Le propati yenza ukuba ibe luncedo njenge-arhente yokugcina amanzi kwizicelo ezahlukeneyo.
7. I-Chemical reactivity: I-HPMC ayisebenzi ngeekhemikhali kwaye ayisebenzi kunye nezinye iikhemikhali. Nangona kunjalo, inokwenza iibhondi ze-hydrogen kunye nezinye iimolekyuli zepolar, eziyenza ibe luncedo njenge-thickener, binder, kunye nefilimu-yangaphambili kwizicelo ezahlukeneyo.

Isishwankathelo,HPMCineepropathi ezininzi zeekhemikhali eziyenza ibe yipolymer eguquguqukayo kwaye iluncedo kumashishini ahlukeneyo, kubandakanya amayeza, ukutya, izinto zokuthambisa, kunye nokwakha. I-solubility yayo, i-viscosity, ukuzinza, i-thermal properties, umsebenzi we-surface, i-hygroscopicity, kunye ne-reactivity yekhemikhali yenza ukuba ilungele uluhlu olubanzi lwezicelo.