I-HPMC vs hec: 6 I-Umahluko kufuneka ukwazi!

Yazisa:

I-HydroxypropyTylmethylcelcelcelcelcelcelcelEli (i-HPMC) kunye ne-hydroxythlcelcelcelcelcelcebalose (hec) zombini zisetyenziswa khona ukongezwa kwempahla, i-cosmetic kunye namashishini amayeza. Ezi zigculelo zeselfowuni zinamathuba okusebenza okucwangcisiweyo ngenxa yomoya owodwa wamanzi, uzinzo, kunye nokwenza amandla okwenza ifilimu.

1.Kwazisa uMgangatho:

I-HPMC yi-polymer ye-switgemetic ethathwe kwi-sellyulose. Yenziwe ngokuguqula imichiza yokuguqula i-shemilsulose yendalo ngokongeza i-propylene oxide kunye ne-methyl chloride. I-hec iluhlobo lwe-selsulose ikhutshiwe, kodwa yenziwa ngokuphendula kwi-sellyulose yendalo kunye ne-Ethylene oxide kwaye iwuphathe ngeAlkali.

I-2. Ukungasebenzi:

Zombini i-HPMC kunye ne-HEC ayinyibiliki kwaye inokuchithwa emanzini abandayo. Kodwa i-solity ye hec ingaphantsi kwe-HPMC. Oku kuthetha ukuba i-HPMC ineengozi ezingcono kwaye inokusetyenziswa ngokulula ngokulula kwifomu.

I-3. UVIKILE:

I-HPMC kunye ne-HEC ineempawu ezahlukeneyo ze-viscofisity ngenxa yezakhiwo zazo zemichiza. I-Hec inobunzima obuphezulu kwimolekyuli kunye ne-denser kune-HPMC, enika i-viscofity ephezulu. Ke ngoko, i-HEC ihlala isetyenziswa njengemilo efuna uVenkile okuphezulu, ngelixa i-HPMC isetyenziswa kwiziko elifuna ukubonwa.

I-4. Ukusebenza kwefilimu:

Zombini i-HPMC kunye ne-HEC zinezakhono zokwenza ifilimu. Kodwa i-HPMC ineqondo lokuyila elisezantsi lefilimu, oko kuthetha ukuba inokusetyenziswa kumaqondo obushushu asezantsi. Oku kwenza ukuba i-HPMC ifanelekile ukuba isetyenziswe kwifomu efuna amaxesha owomisayo ngokukhawuleza kwaye ube nobumbi bokunamathela.

5. Uzinzo:

I-HPMC kunye ne-hec bayazinza phantsi kwe-PH kunye neemeko zobushushu. Nangona kunjalo, i-hec inomdla ngakumbi kwi-pH itshintsha kune-HPMC. Oku kuthetha ukuba i-hec kufuneka isetyenziswe ekuqulunqweni kwenkqubo ye-PH ye-5 ukuya kwi-10, ngelixa i-HPMC inokusetyenziswa kwinqanaba le-hle.

6. Isicelo:

Iimpawu ezahlukileyo ze-HPMC kunye ne-hec zibonisa ukuba zilungele izicelo ezahlukeneyo. I-HEC idla ngokusetyenziswa njengearhente yokuthambisa kwi-cosmetic kunye nefomu yamayeza. Ikwasetyenziswa njenge-binder kunye nearhente yefilimu yefilimu kwifom yetafile. I-HPMC isetyenziswa njenge-thiyicker, i-stabilizer, kunye ne-arhente yokwakha ifilimu ekutyeni, iziyobisi, kunye neendlela zokwenza izinto. Ikwasetyenziswa njengearhente yegengi kwezinye iinkqubo zokutya.

Ukuququmbela:

I-HPMC kunye ne-HEC zizo zombini iiseli zesellulose ezinepropathi ezahlukileyo ezifanelekileyo kwizicelo ezahlukeneyo. Ukuqonda umahluko phakathi kwezi zinto zimbini kunokukunceda ukhethe ilungelo lokufumana kwakho. Lilonke, i-HPMC kunye ne-HEC ikhuselekile kwaye isebenza izibonelelo ezibonelela ngeengenelo ezininzi ekutyeni, i-cosmetic kunye namashishini amayeza.