Nguwuphi umahluko phakathi kwe-HPMC kunye ne-MHEC?

I-HydroxyPOpyl Methylcelcelculose (HPMC) kunye ne-Methmc Hydroxyythyl seluplose (MHC) zizo zombini iiseli, ezisetyenziswayo kwimizi-mveliso eyahlukeneyo njengokwakhiwa, ukutya, ukutya kunye ne-cosmetics. Ngaphandle kokwabelana ngokufana kwiziseko zazo zemichiza kunye nezicelo, kukho umahluko ohlukileyo phakathi kwezi zimbini.

1. Ubume bemichiza:

I-HPMC (Hydroxypropyl Methylcelcelcelsulose) Iveliswa ngokutshintsha kweekhemikhali kwesellose, ngokuyintloko ikhutshwe kwiinkuni zenkuni okanye i-Cotton. Utshintsho lubandakanya ukuphatha i-seluplose nealkali, ilandelwa yi-propylene oxide kunye ne methyl chloride ukwazisa i-hydroxyl kunye namaqela e-methyl kwi-sellybone.

I-MHEC (Methyl Hydroxyythy Selelose) Ifana ne-HPMC, ithatha ukuphendula okuphezulu kokwazisa amaqela e-methyl kunye ne-hydroxytethy kwi-selsulose umva. I-MHEC idityanisiwe ngokunyanga isellulose neAlkali, ilandelwa ngu-Ethery nge-methyl chloride kunye ne-englone oxide.

2. Isakhiwo semichiza:

Ngelixa zombini i-HPMC kunye ne-MHC Yabelana nge-Selelose Teluplose Putbone, zahlukile kuhlobo kunye nolungelelwaniso lwamaqela athatyathwayo aqhotyoshelwe kulo mqolo.

Isakhiwo se-HPMC:
I-HYDROXYPOPYL
Umyinge we-hydroxypropy kwi-methyl amaqela ayahluka ngokuxhomekeke kwinkqubo yokuphucula kunye neepropathi ezinqwenelekayo.

Ulwakhiwo lwe-MHEC:
I-methyl kunye ne-hydroxyyl amaqela (-C3chohch3) aqhotyoshelwe kwi-selsulose i-selbone.
Umyinge we-methyl ukuya kumaqela e-hydroxyythy anokuhlengahlengiswa ngexesha lokufezekisa iipropathi ezithile.

I-3. Iipropathi:

IiPropathi ze-HPMC:
I-HPMC ibonisa ukuzola okuphezulu kwamanzi, yakha izisombululo ezibonakalayo kunye ne-viscous.
Inepropathi ebalaseleyo yefilimu, eyenza ifaneleke izicelo ezifuna ifilimu.
I-HPMC ibonelela ngokunamathela okuhle kunye nokubopha iipropathi, ukuphucula ubumbano kwimisebenzi eyahlukeneyo.
UVenkile weZisombululo ze-HPMC unokulungelelaniswa ngokuhlengahlengiswa kwenqanaba lokufaka endaweni kunye nobunzima bemolekyuli.

I-MHEC PROPTRIes:
I-MHEC ikwabonisa ukuzola kwamanzi, kodwa i-straility ingahluka ngokuxhomekeke kwinqanaba lokufaka endaweni kunye neqondo lobushushu.
Yenza izisombululo ezicacileyo ngendlela ye-pseudoplastic, ebonisa iipropathi ezinciphileyo.
I-MHC ibonelela ngokuqatha ngokugqwesileyo kunye nokuzinzisa kwiinkqubo ze-apile.
Njenge-HPMC, i-viscosity yezisombululo ze-MHC inokulawulwa ngokuguqula inqanaba lokufaka endaweni kunye nemolekyuli.

4. Izicelo:

Izicelo ze-HPMC:
Ishishini lokwakha: I-HPMC isetyenziswa ngokubanzi kwizifakelo ezisekwe kwisamente, iipristers ezisekwe kwi-gypsim, kunye nee-tiles, kunye nokugcinwa kwamanzi ukuphucula ukusebenza, ukugcinwa kwamanzi, kunye nokunamathela.
Amayeza: I-HPMC isetyenziswa kwi-tayili yetafile, ifomu yokukhutshwa kwe-suble, i-Ophthalmic Solutions, kunye namalungiselelo aphezulu ngenxa yokuqulunqa iifilimu zefilimu kunye ne-mucobries.
Ukutya kunye ne-cosmetics: I-HPMC isebenza njengearhente yokuthambisa, i-stabilizer, kunye ne-mulsifier kwiimveliso zokutya, izinto zononophelo, kunye ne-cosmetics.

Izicelo ze-MHEC:
Ishishini lokwakha: I-MHC idla ngokuqeshwa kwifomu yeCapetical EnjengeeTletheives, inikezela, kunye nokukhula kokuphucula ukugcinwa kwamanzi, ukusebenza kunye nokunamathela.
Iipeyinti kunye neengubo: I-MHC isetyenziswa njenge-Rheology Modifier kwiipeyinti ezisekwe emanzini, iingubo, kunye nee-inki zokulawula i-viscosity, thintele ukuqhutywa kwepropathi.
Ifomu yamayeza: I-MHC ifumana izicelo kuMiso-Shidions, Ophthalmic, kunye neefom zokukhupha i-dosage njengee-arhente yokuthambisa kunye nokuzinzisa iarhente.

5. Izibonelelo:

Izibonelelo ze-HPMC:
I-HPMC ibonelela ngeepropathi zokwenza ifilimu ezinqabileyo zefilimu, ezenza ilungele ukunxiba iitafile kunye neefomu zokukhupha.
Ibonisa imbetheition efanelekileyo kunye neempawu ezibophelelayo, enyusa umanyano lweefom ezahlukeneyo.
I-HPMC ibonelela ngokuqatha ngokuguqula i-viscofity kunye nokuguqula iipropathi zesicombululo.

Izibonelelo ze-MHC:
I-MHC ibonisa iziphumo ezizezona zikhulu kwaye zizinzile kwiinkqubo ezibonakalayo, zenza ukuba zilungele ukupeyinta, ukwakhiwa, kunye neefomu zamayeza ezinto.
Inika iipropathi ezifanelekileyo zokugcina amanzi, ukuphucula ukusebenza kunye nokunamathela kwiimveliso ezisekwe kwimo yesamente.
I-MHEC ibonelela ngehambo ye-pseudoplastic, ivumela ukusetyenziswa ngokulula kunye neempawu eziphuculweyo zokuhamba ezityayo kunye neepeyinti.

Ngelixa zombini i-HPMC kunye ne-MHC ziselfowuni zinezicelo ezifanayo, zibonisa ukungafani kweekhemikhali, izakhiwo, iipropathi kunye nezibonelelo. I-HPMC yaziwa ngokuba ziipropathi zayo ezilungileyo zefilimu kunye ne-adhec, ngelixa i-mhec igqwesa e-sticketion, ukuzinza, kunye nemiphumo yokugcina amanzi. Ukuqonda ezi mbandela kubalulekile ekukhetheni eyona nto ifanelekileyo ye-seluplose kwizicelo ezithile kumashishini ahlukeneyo.