Uyini umehluko phakathi kwe-HPMC E ne-K?

I-HPMC (Hydroxypropyl Methylcellulose) iwuhlobo lwe-cellulose ether esetshenziswa kwizicelo ezahlukahlukene, okuhlanganisa imithi, ukudla, izimonyo, nokwakha. I-HPMC iyi-polymer engeyona i-ionic, encibilika emanzini etholakala ku-cellulose, futhi itholakala ngezinhlobo ezimbili: i-HPMC E kanye ne-HPMC K.

I-HPMC E iyibanga eliphansi le-viscosity le-HPMC, futhi isetshenziswa ngokuyinhloko ezinhlelweni zemithi. Isetshenziswa njenge-binder, i-disintegrant, ne-ejenti yokumisa okwesikhashana kumaphilisi, amaphilisi, nama-granules. Ibuye isetshenziswe njenge-ejenti yokuqina kuma-syrups, okhilimu, namafutha okugcoba. I-HPMC E iyibanga eliphansi le-viscosity, okusho ukuthi ine-viscosity ephansi uma incibilika emanzini. Lokhu kuyenza ilungele ukusetshenziswa emikhakheni yemithi, njengoba kulula ukuyixuba nokuhlakaza emanzini.

I-HPMC K iyibanga le-viscosity ephezulu ye-HPMC, futhi isetshenziswa ngokuyinhloko ekwakheni nasekufakelweni kokudla. Isetshenziswa njenge-binder, i-thickener, ne-ejenti elengayo ezintweni zokwakha, njengezinamatheliso zamathayili, ama-grouts, nama-plaster. Ibuye isetshenziswe njenge-agent yokuqina emikhiqizweni yokudla, efana nojamu, ojeli, namasoso. I-HPMC K iyibanga le-viscosity ephezulu, okusho ukuthi ine-viscosity ephezulu uma incibilika emanzini. Lokhu kuyenza ilungele ukusetshenziswa ekwakhiweni nasekusetshenzisweni kokudla, njengoba ikwazi ukuhlinzeka ngokuqina, ukungaguquguquki kwe-viscous.

Umehluko omkhulu phakathi kwe-HPMC E ne-HPMC K yi-viscosity. I-HPMC E iyibanga eliphansi le-viscosity, okusho ukuthi ine-viscosity ephansi uma incibilika emanzini. Lokhu kuyenza ilungele ukusetshenziswa emikhakheni yemithi, njengoba kulula ukuyixuba nokuhlakaza emanzini. I-HPMC K iyibanga le-viscosity ephezulu, okusho ukuthi ine-viscosity ephezulu uma incibilika emanzini. Lokhu kuyenza ilungele ukusetshenziswa ekwakhiweni nasekusetshenzisweni kokudla, njengoba ikwazi ukuhlinzeka ngokuqina, ukungaguquguquki kwe-viscous.

Ngokungeziwe ku-viscosity, i-HPMC E ne-HPMC K nazo ziyahluka ngokuya ngesakhiwo sazo samakhemikhali. I-HPMC E inesisindo samangqamuzana esiphansi kune-HPMC K, eyinikeza i-viscosity ephansi. I-HPMC K inesisindo samangqamuzana esiphezulu, esinikeza i-viscosity ephakeme.

Okokugcina, i-HPMC E ne-HPMC K nazo ziyahluka ngokuya ngokuncibilika kwazo. I-HPMC E iyancibilika emanzini abandayo, kuyilapho i-HPMC K incibilika emanzini ashisayo. Lokhu kwenza i-HPMC E ibe ilungele ukusetshenziswa ezinhlelweni zemithi, njengoba ingaxutshwa kalula futhi ihlakazwe emanzini abandayo. I-HPMC K ilungele ukusetshenziswa ekwakhiweni nasekufakweni kokudla, njengoba ingaxutshwa kalula futhi ihlakazwe emanzini ashisayo.

Sengiphetha, umehluko omkhulu phakathi kwe-HPMC E ne-HPMC K yi-viscosity. I-HPMC E iyibanga le-viscosity ephansi, kuyilapho i-HPMC K iyibanga le-viscosity ephezulu. Ngaphezu kwalokho, i-HPMC E inesisindo samangqamuzana esiphansi kune-HPMC K, futhi iyancibilika emanzini abandayo, kuyilapho i-HPMC K incibilika emanzini ashisayo. Lo mehluko wenza i-HPMC E ne-HPMC K zilungele ukusetshenziswa ezinhlelweni ezahlukene.