Yeyiphi engcono, CMC okanye HPMC?

I-CMC (i-sodium carboxymethyl cellulose) kunye ne-HPMC (i-hydroxypropyl methyl cellulose) zizinto ezimbini eziqhele ukusetyenziswa kwiselulosi, ezisetyenziswa ngokubanzi kumashishini ahlukeneyo. Ngokubhekiselele ekubeni ngubani ongcono, kuxhomekeke kwimeko yesicelo esithile kunye neemfuno.

1. Iimpawu zeMichiza
I-CMC yi-anionic water-soluble polymer compound efunyenwe ngokunyanga i-cellulose yendalo kunye ne-sodium chloroacetate phantsi kweemeko ze-alkaline. Amaqela eCarboxymethyl angeniswa kwitsheyini yawo yemolekyuli, eyenza ibe nokunyibilika kakuhle kwamanzi kunye neempawu ezityebileyo.

I-HPMC yi-ether ye-cellulose engeyo-ionic efunyenwe ngokuphendula i-cellulose nge-methyl chloride kunye ne-propylene oxide. Amaqela e-methoxy kunye ne-hydroxypropoxy kwisakhiwo semolekyuli ye-HPMC inika ukutyeba okulungileyo, ukuzinza kunye nokugcinwa kwamanzi, kunye neepropati ezilungileyo zejeli.

2. Iinkalo zesicelo
Ishishini lokutya: I-CMC isoloko isetyenziswa ekutyeni njenge-thickener, i-stabilizer, i-arhente yokumisa kunye ne-emulsifier, njl., kwaye ifumaneka kwi-yogurt, i-ayisikrimu, ijeli, iziselo kunye neemveliso ezibhakiweyo. Inokuphucula ukuthungwa kokutya kwaye yandise ubomi beshelufu. Nangona i-HPMC ikwasetyenziswa kushishino lokutya, isetyenziswa ikakhulu njengesongezo kwifiber yokutya, ngakumbi kwezinye iimveliso ezingenagluten.

Ishishini lamachiza: I-HPMC isetyenziswa kakhulu kwishishini loxubo mayeza, ngakumbi kwi-tablet yokwaleka, amayeza alawulwayo akhutshwayo kunye nemveliso ye-capsule. Iimpawu zayo ezingezizo i-ionic kunye ne-biocompatibility efanelekileyo zinika inzuzo ekhethekileyo kwiinkqubo zokuhanjiswa kweziyobisi. I-CMC ikwasetyenziswa kushishino loxubo-mayeza, kodwa ngakumbi njenge-thickener kunye ne-adhesive kumachiza.

Umzi-mveliso wokwakha kunye nokwaleka: I-HPMC isetyenziswa kakhulu kwizinto zokwakha, ngakumbi kudaka olomileyo, igypsum, kunye nomgubo weputty, ngenxa yogcino lwamanzi olugqwesileyo, ukutyeba kunye neempawu ezichasene nokutyibilika. I-CMC ikwanazo nezinye izicelo kushishino lwezogqumethelo, kodwa isetyenziswa ngokuxhaphakileyo njengendawo yokujiya yokwaleka okusekwe emanzini.

Izithambiso kunye nokhathalelo lobuqu: I-HPMC isoloko isetyenziswa kwizinto zokuthambisa, ngakumbi kwizithambiso, iikhrimu, iishampu kunye neentlama zokuthambisa, njenge-thickener, i-emulsion stabilizer kunye ne-moisturizer. I-CMC ikwasetyenziswa kwizicelo ezifanayo, kodwa isiphumo sayo sokuthambisa ayilunganga njenge-HPMC.

3. Iimpawu zokusebenza
Ukunyibilika kwamanzi: I-CMC inokunyibilika kakuhle kumanzi abandayo kunye nashushu, ngelixa i-HPMC inyibilika ngokulula emanzini abandayo, kodwa ayinyibiliki emanzini ashushu kwaye ine-gelation ye-thermal. Ngoko ke, i-HPMC ifaneleka ngakumbi kwiimveliso ezifuna iimpawu ze-thermal gelation kwezinye izicelo, ezifana neepilisi ezilawulwayo ezikhutshwayo kwiyeza.

Ulawulo lwe-Viscosity: I-CMC ine-viscosity ephantsi kwaye kulula ukuyilawula, ngelixa i-HPMC inoluhlu olubanzi lwe-viscosity kwaye iguquguquka ngakumbi. I-HPMC inokubonelela nge-viscosity ephezulu kwaye ihlale izinzile kumaqondo obushushu ahlukeneyo, okwenza kube luncedo ngakumbi kwizicelo ezifuna ulawulo lwe-viscosity oluchanekileyo.

Uzinzo: I-HPMC inozinzo olungcono lweekhemikhali kuneCMC. Ibonisa uzinzo oluhle kwiindawo ezine-acidic okanye i-alkaline, ngelixa i-CMC inokuthi ithobe kwii-asidi ezinamandla okanye iziseko ezomeleleyo.

4. Ixabiso kunye neendleko
Ngokubanzi, i-CMC inexabiso eliphantsi kwaye ifanelekile kwizicelo zemizi-mveliso emikhulu, ngelixa i-HPMC ibiza kakhulu ngenxa yenkqubo yayo yokuvelisa kunye neendleko eziphezulu. I-CMC inokuba nomtsalane ngakumbi kwiimeko apho kufuneka izixa ezikhulu kwaye neendleko zibuthathaka. Nangona kunjalo, kwezinye iindawo ezineemfuno zokusebenza eziphezulu, ezifana neyeza kunye nezithambiso eziphezulu, i-HPMC isasetyenziswa ngokubanzi ngenxa yeenzuzo zayo zokusebenza ezizodwa nangona ixabiso layo eliphezulu.

5. Ukhuseleko lokusingqongileyo kunye nokhuseleko
Zombini i-CMC kunye ne-HPMC zine-biodegradability elungileyo kunye nokhuseleko lokusingqongileyo, kwaye zinefuthe elincinane kokusingqongileyo ngexesha lokusetyenziswa. Zombini zithathwa njengezongezo zokutya ezikhuselekileyo kunye neziyobisi, kwaye zinokusetyenziswa ngokukhuselekileyo kwiimveliso ezahlukeneyo emva kohlolo olungqongqo kunye nesiqinisekiso.

I-CMC kunye ne-HPMC zinezibonelelo zazo kunye nezingeloncedo, kwaye akunakwenzeka ukutsho nje ukuba yeyiphi engcono. Kwizicelo ezifuna ixabiso eliphantsi, imveliso enkulu, njengeshishini lokutya jikelele kunye neemfuno ezilula zokutyeba, i-CMC lukhetho olungabizi kakhulu. Kwiinkalo ezineemfuno eziphezulu zokusebenza, ezifana neenkqubo zokukhululwa ezilawulwa ngamayeza, izixhobo zokwakha eziphezulu kunye nezithambiso eziphambili, i-HPMC inokufaneleka ngakumbi ngenxa yokusebenza kwayo okuhle kakhulu. Ngoko ke, ukhetho lweyiphi i-cellulose derivative ixhomekeke kwiimfuno ezithile zesicelo, iimfuno zokusebenza kunye nokuqwalaselwa kweendleko.