Uyini umehluko phakathi kwe-HPMC ne-MHHEC?

IHydroxypropyl Methylcellulose (HPMC) ne-methylhydroxyethyl cellulose (Mhec) yi-cellulose derivatives esetshenziswa kabanzi kwizimboni ezahlukahlukene ngenxa yezakhiwo zazo ezihlukile ngenxa yezakhiwo zazo ezihlukile. Ngenkathi zinokufana, zibonisa nokwehluka okubalulekile.

I-Hydroxypropyl methylcellulose (HPMC):

Isakhiwo se-1.Chical:
I-HPMC iyi-polymer ye-semi-zokwenziwa ethathwe ku-cellulose.
Siqukethe amayunithi aphindaphindwayo e-anhydroglucose axhumeke ku-hydroxypropyl kanye namaqembu we-metholly.

2. Ukusebenza:
I-Solubinity yamanzi: I-HPMC iyanyibilika emanzini ngakho-ke isetshenziswa kabanzi ekuthini izakhi.
Ukwakheka ifilimu: Kungakha amafilimu amancanyana, okwenza kube lula ukuthola izinhlelo zokusebenza ezidinga ukugqokwa okuvikelayo.
I-Thermal Gelling: Inezakhiwo ezi-Thermal Gelling, ezingaba nenzuzo kwizicelo ezithile.

3. Isicelo:
Izemithi: Kusetshenziswe njengezihlanganisi, ukumbona amafilimu kanye nokukhipha umatikuletsheni okuqhubekayo kumathebulethi wezemithi.
Imboni yezokwakha: Isetshenziselwa ukukhanyisela okusekelwe ku-tejitha, ama-gypsum asuselwa ku-gypSum kanye nokuzimela okuzenzakalelayo.
Imboni yokudla: Isetshenziswa njenge-sikhulu ne-stabilizer ekudleni.

4. Ukukhiqiza:
Kukhiqizwa ngokusheshisa kwe-cellulose ene-propelene oxide ne-methyl chloride.
Izinga lokufakwa esikhundleni (DS) linquma isilinganiso se-hydroxypropyl kanye namaqembu we-metholly.

Methylhydroxyethyylcelcellellose (Mhec):

Isakhiwo se-1.Chical:
I-MHEC futhi i-cellulose derivative ene-hydroxyethyl kanye namaqembu we-methoxy anamathele emuva kwi-cellulose backbone.

2. Ukusebenza:
I-Solubinity yamanzi: Njenge-HPMC, i-MHEC i-soluble yamanzi, enomthelela ekuguquguqukeni kwayo ezinhlobonhlobo zezicelo ezahlukahlukene.
Ukugcinwa kwamanzi okuthuthukile: I-Mhec ngokuvamile ibonisa ukugcinwa kwamanzi okungcono kune-HPMC.

3. Isicelo:
Imboni yezokwakha: Isetshenziswa kabanzi njenge-ejenti ekhulayo yodaka olususelwa kuso usimende, izinamathiseli ze-tile kanye nemikhiqizo esekwe e-gypsum.
Amapende nezimbobo: Izenzo njengokushintshwa kwe-Rheology kumapende asuselwa emanzini.
I-Pharmaceutical: Isetshenziselwa ukukhishwa kwamakhambi kwamakhamikhi.

4. Ukukhiqiza:
Kukhiqizwe ukusheshisa kwe-cellulose nge-methyl chloride ne-ethyl chloride.
Izinga lokufaka esikhundleni lithinta izakhiwo kanye nokwenza ama-Mhec.

Umehluko phakathi kwe-HPMC ne-MHEC:

1. Inqubo yokukhetha:
I-HPMC ihlanganiswe isebenzisa i-propelene oxide ne-methyl chloride.
I-MHEC ikhiqizwa kusetshenziswa i-methyl chloride ne-ethyl chloride.

2. Ukugcinwa kwamanzi:
I-MHEC ngokuvamile ibonisa izakhiwo ezingcono zokugcina amanzi kune-HPMC.

3. Isicelo:
Ngenkathi kukhona okunye ukugqagqana, uhlelo oluthile olukhethekile lungavumela olunye ngaphezu kolunye olususelwa ezimfanelweni zalo ezihlukile.

4. I-Thermal Gelation:
I-HPMC ibonisa izakhiwo ze-thermogelling, kanti i-MHEC ingahle ibe nokuziphatha okuhlukile kwe-rhelogical.

I-HPMC ne-MHEC zinezinhlobonhlobo zezicelo ezimbonini ezahlukahlukene, futhi ngayinye inezinzuzo ezihlukile. Ukukhetha phakathi kwabo kuncike kwizidingo ezithile zohlelo lokusebenza kanye nokusebenza okudingekayo. Noma ngabe zisemikhakheni, ekwakheni noma kwezinye izinkambu, ukuqonda umehluko kusiza ukwenza izinqumo ezinolwazi zokuthola ukusebenza kahle kwezindlela nezinqubo ezahlukahlukene.