Umehluko phakathi kwe-HPMC ne-MHEC

Umehluko phakathi kwe-HPMC ne-MHEC

I-HPMC (Hydroxypropyl Methylcellulose) kanye ne-MHEC (Methylhydroxyethylcellulose) yizinhlobo ezimbili zokuphuma kwe-cellulose ezisetshenziswa ekusetshenzisweni okuhlukahlukene. Zombili izinto ezisekelwe kuma-polymers ezisetshenziselwa ukujiya, ukubopha, nokusimamisa imikhiqizo. Zombili zisetshenziswa kabanzi ezimbonini zokudla, ezemithi, nezimonyo.

Umehluko omkhulu phakathi kwe-HPMC ne-Mhec wuhlobo lwe-cellulose olusetshenziswa ukuzenza. I-HPMC yenziwe nge-hydroxypropyl methylcellulose, kuyilapho i-Mhec yenziwe nge-methylhydroxyethylcellulose. I-HPMC iwuhlobo olucwengisiswe kakhulu lwe-cellulose, kuyilapho i-Mhec iwuhlobo olucoliseke kancane.

I-HPMC iyimpushana emhlophe, engenaphunga, futhi engenambimbi encibilika emanzini abandayo. Isetshenziswa njenge-ejenti yokuqina, i-emulsifier, i-stabilizer, kanye ne-ejenti yokumisa emikhiqizweni ehlukahlukene. Ibuye isetshenziselwe ukwandisa i-viscosity yezixazululo kanye nokwenza ngcono ukuthungwa kwemikhiqizo. Ivame ukusetshenziswa emikhiqizweni yokudla efana no-ayisikhilimu, amasoso, kanye nezingubo zokugqoka.

I-Mhec yona iyimpushana emhlophe, engenaphunga, futhi engenambitheki encibilika emanzini ashisayo nabandayo. Isetshenziswa njenge-ejenti yokuqina, i-emulsifier, i-stabilizer, kanye ne-ejenti yokumisa emikhiqizweni ehlukahlukene. Ibuye isetshenziselwe ukwandisa i-viscosity yezixazululo kanye nokwenza ngcono ukuthungwa kwemikhiqizo. Ivame ukusetshenziswa emikhiqizweni yokudla efana no-ayisikhilimu, amasoso, kanye nezingubo zokugqoka.

Mayelana nokusebenza, i-HPMC ngokuvamile ithathwa njengesebenza kangcono kunoMhec. Izinzile futhi ine-viscosity ephakeme kune-Mhec. Iphinde imelane kakhulu nezinga lokushisa kanye ne-pH. Ukwengeza, i-HPMC inempilo yeshelufu ende kune-Mhec.

Mayelana nezindleko, i-HPMC ngokuvamile ibiza kakhulu kune-Mhec. Lokhu kungenxa yokuthi i-HPMC iwuhlobo olucwengisiswe kakhulu lwe-cellulose ngakho-ke kubiza kakhulu ukuyikhiqiza.

Sekukonke, i-HPMC kanye neMhec womabili asetshenziswa kakhulu ezimbonini zokudla, ezemithi, nezimonyo. Zombili zisetshenziswa njengama-ejenti okuqina, ama-emulsifiers, ama-stabilizer, nama-ejenti amisayo emikhiqizweni eyahlukene. I-HPMC ngokuvamile ibhekwa njengesebenza kangcono kune-Mhec, kodwa futhi ibiza kakhulu.