Yeyiphi engcono, i-CMC okanye i-HPMC?

Ukuthelekisa ngokufanelekileyo kwaye kuvavanywe i-CMC (i-carboxymethyl seluplose) kunye ne-HPMC (Hydroxypropyl MethylcelcelUlose), kufuneka siqwalasele iipropathi, kufuneka siqwalasele iipropathi zabo, kunye nokuzilindela ngeenjongo ezahlukeneyo. Zombini i-CMC kunye ne-HPMC zizifo zeselfowuni zisetyenziswa kakhulu kumashishini ahlukeneyo, kubandakanya amayeza, ukutya, izixhobo kunye nolwakhiwo. Umntu ngamnye uneempawu zayo ezizodwa kunye nezibonelelo, ezimisela ukufaneleka kwabo kwizicelo ezithile.

1. Intshayelelo kwi-CMC kunye ne-HPMC:

I-Carboxymethyl Selelose (CMC):
I-CMC yi-selsuloed ye-selsulose esuswe ngamanzi evela kwiseli yendalo ngokwazisa i-carboxymethyl amaqela kwi-selsulose i-sellose. Iqhelekile njengearhente yokuthambisa, i-stabilizer, kunye nearhente yokugcina amanzi kumashishini ohlukeneyo.

Hydroxypropyl methylcelceltulose (HPMC):
I-HPMC yenye i-selsulose ye-scoulose eveliswe ngamanzi ngokunyanga ukunyanga i-seluplose nge-propylene oxide kunye ne methyl chloride. Ifumana izicelo kwiindawo zamayeza, ukutya, i-cosmetics, kunye nolwakhiwo ngenxa yokwakha ifilimu, ukwenza ifilimu, kunye nezinto ezibophayo.

2. Iipropathi zothelekiso:

Umoya wobuchule:
I-CMC: inyibilikiswe ngokupheleleyo emanzini.
I-HPMC: inyibilikiswe emanzini phantsi kweemeko ezithile, yenza isisombululo esicacileyo okanye kancinci se-opalescent.

I-Viskosity:
I-CMC: ibonise i-viscofity ephezulu nangaphaya kokugxininisa okuphantsi.
I-HPMC: I-Viscosity iyahluka ngokuxhomekeke kwinqanaba lokufaka endaweni kunye nobunzima bemolekyuli.

Iipropathi zokwenza ifilimu:
I-CMC: Isakhono sokwakha ifilimu.
I-HPMC: Ukuqulunqa iipropati ezifanelekileyo zefilimu, okwenza ilungele ukusetyenziswa njengengubo kunye neefilimu.

Uzinzo lwe-therm:
I-CMC: Ngokubanzi ukuzizinza kwe-thermal ephantsi xa kuthelekiswa ne-HPMC.
I-HPMC: Vavanya uzinzo bukhali, ukwenzela ukuba ilungele ukusetyenziswa kweqondo lobushushu obuphezulu.

3. Iindlela zokusebenzisa:

Izicelo ze-CMC:
Umzi-mveliso wokutya: Isetyenziswe njengearhente yokuthambisa, i-stabilizer, kunye nearhente yokugcina umswakama kwiimveliso ezinjengesosi, ukunxiba, kunye neemveliso zobisi.
Amayeza: uqashwe kwifom yetafile njenge-binder kwaye intsholongwane.
Iimveliso zononophelo lobuqu: ifunyenwe kumazinyo, iikhrim, i-lotions, kunye ne-cosmetics njenge-thismetics njenge-thi choner kunye ne-stabilizer.
Ukumba i-oyile: kusetyenziswe ekuthambekeni i-fall ukulawula i-viscofity kunye nokulahleka kukalwelwe.

Izicelo ze-HPMC:
Umzi-mveliso wokwakha: Isetyenziswe kwisifo esekwe kwisamente, iiplasters, kunye ne-tilestheives zokuphucula ukusebenza kunye nokunamathela.
Ishishini lamayeza:
Ishishini lokutya: Isetyenziswe njenge-thicker, i-eulsifier, kunye ne-stachemizer kwiimveliso ezifana nempahla yokubhaka kunye neemveliso zobisi.
I-Cosmetics: ifunyenwe kwiimveliso ezinjengesiphango, iikhrim, kunye ne-outs njengearhente yokuthambisa kunye nefilimu yangaphambili.

4. Izibonelelo kunye nokungancedi:

IINGXAKI ZE-CMC:
Ukungabinamali okuphezulu kwamanzi.
Ukuqaqamba okugqwesileyo kunye nokuzinzisa iipropathi.
Isebenza kakuhle emalini.
Ukusetyenziswa kwezinto eziguquguqukayo kumashishini ahlukeneyo.

Izinto ezingalunganga ze-CMC:
Isakhono sokwakha ifilimu.
Ukuthoba izizinzo ze-thermal phantsi xa kuthelekiswa ne-HPMC.
Ingabonisa intsebenzo eyahlukileyo kuxhomekeka kwi-PH kunye noxinzelelo lwe-electrolyte.

Izibonelelo ze-HPMC:
Iipropathi zokwenza ifilimu ezilungileyo zefilimu.
Uzinzo olungcono lobuqhetseba.
Ibonelela ngokuphuculwa komthendeleko kunye nokusebenza kwizicelo zokwakha.
Ilungele ukukhululwa kwamayeza okukhutshwa kwamayeza.

Izinto ezingalunganga ze-HPMC:
Ixabiso eliphakamileyo elithelekiswa ne-CMC.
Ukuzalwa kunokuhluka ngokuxhomekeka kwibanga nakwiimeko zesicelo.
Ukulungiswa kunokufuna izixhobo ezithile kunye neemeko.

5. Ukufaneleka kwezicelo ezithile:

I-CMC:
Eyona nto ifanelekileyo kwizicelo ezifuna ukonakala okuphezulu kwamanzi kunye neepropathi ezinkulu, ezinjengokutya neemveliso zononophelo lobuqu.
Ilungele usetyenziso lweqondo lobushushu apho uzinzo lwe-thermal ayisiyongxaki iphambili.
Isetyenziswe ngokubanzi kwiifomu zamayeza apho kufuneka ukonakaliswa ngokukhawuleza.

I-HPMC:
Ukhethwa kwezicelo ezifuna iipropathi ezongezelelekileyo zefilimu, ezinje ngengubo kunye neefilimu kumashishini okutya kunye nokutya.
Inokwanela izicelo zokwakha ngenxa yokunamathela kuwo obalaseleyo, ukungasebenzi, kunye nokuzinza komzimba.
Ifanelekile kwiinkqubo zokuhanjiswa kweziyobisi ezifunekiyo ezifuna ukukhululwa ngokuthe ngqo kinetics.

6. ISIQINISEKISO:

Zombini i-CMC kunye ne-HPMC ziyinto ebalulekileyo yesellulose eneepropathi ezahlukeneyo kunye nokusetyenziswa. Ukukhetha phakathi kwe-CMC kunye ne-HPMC kuxhomekeke kwiimfuno ezithile ezinjengokungabizi, ukubakho, ubuchule bokwenza ifilimu, uzinzo lwefilimu, uzinzo oluqhelekileyo, kunye nokuqwalaselwa kwexabiso. Ngelixa i-CMC ibonelela ngomhlaba ophakamileyo wamanzi kunye neepropathi ezigqwesileyo, i-HPMC egqwesileyo ekuqulunqweni kwefilimu, uzinzo lobushushu, kunye nokunamathela. Ukuqonda iimpawu ezizodwa zesifo seselsese nganye kubalulekile ekukhetheni eyona mveliso ifanelekileyo kwisicelo esithile, qinisekisa ukusebenza kakuhle kunye nokuxabisa iindleko.