Kokubili i-hydroxypropylll methylcellose kanye ne-hydroxyethyl cellulose kukhona iselula, yini umehluko phakathi kwalezi ezimbili?

I-Hydroxypropyl methylcellulose (i-hypromellose), eyaziwa nangokuthi i-Hypromellose, uhlobo lwe-ether exubile exubile. Kuyinto esetshenziswayo, engasebenzi, i-viscoelastic polymer evame ukusetshenziswa njenge-lubrication ku-ophthalmology, noma njenge-excipient noma imoto emithini yomlomo.

I-Hydroxyyethyl cellulose (Ifomula), ifomula yamakhemikhali (c2h6o2) n, i-awlor emhlophe noma ekhazimulayo ephuzi, i-oxyley, i-an-anobuthi ocansini noma i-chloroethanol) ilungiselelwe i-etherficable reluliose. Ngoba i-HEC inezindawo ezinhle zokuqina, ukumisa, ukusabalalisa, ukubopha, ukubopha amafilimu, ukuvikela umswakama nokudla, kuhlinzekwe umuthi kanye nokudla, izindwangu, amaphepha kanye ne-polymer ≥ 99%.

Yize zombili ziyi-cellulose, kunomehluko omkhulu phakathi kwalezi ezimbili:

I-Hydroxypropylm methylcellulose kanye ne-hydroxysethylcellulose kwehluka ngezindawo, ukusetshenziswa, kanye nokuzinikela.

1. Izici ezihlukile

I-Hydroxypropyl Methylcellulose: (HPMC) iyifayibha emhlophe noma efanayo emhlophe noma i-granular powder, ingeyezinhlobonhlobo ze-annonic celvulosise ezixubile. I-viscoelar ye-viscoelastic ye-semi-zokwenziwa engenampilo.

I-HydroxyEthylcellulose: (I-HEC) iyifayibha emhlophe noma ephuzi, engenamondi ne-nontoxic noma i-powder eqinile. Ingene nge-alkaline cellulose ne-ethylene oxide (noma chlorohydrin). Kungokwawo okungekho kwe-moluble cellulose ether.

2. I-solubity yehlukile.

I-Hydroxypropyl methylcellulose: cishe insoluble ku-ethanol ngokuphelele, ether kanye ne-acetone. Isixazululo esicacile noma esinamafu kancane sichithwe emanzini abandayo.

IHydroxYethyl Cellulose: Inezakhiwo zokuqina, ukumisa, ukubopha, ukufega, ukusabalalisa kanye nokuthambisa. Kungalungiselela izixazululo ku-viscosity ehlukile futhi ine-solubelity enhle kakhulu yama-electrolyte.

IHydroxypropyl Methylcellulose inezimpawu zekhono lokuqina, ukumelana nosawoti okuphansi, ukuqina kwe-PH, ukugcinwa kwamanzi, ukuqina okubucayi okuhle, ukumelana okuphezulu kwe-enzyme, ukumelana nokuhlangana.

Kunokwehluka okuningi phakathi kwalokhu okubili, futhi ukusebenziseka kwabo embonini nakho kuhluke kakhulu.

IHydroxypropyllylylylylyly isetshenziswa kakhulu njengoMkhulu, i-Dispsant and Stabilizer embonini ye-Coating, futhi ine-soubelity enhle emanzini noma izixazululo ze-organic. Embonini yezokwakha, ingasetshenziswa ku usimende, i-gypsum, i-latex putty, udaka, njll., Ukuthuthukisa ukungafani kwesihlabathi sosimende futhi kuthuthukise kakhulu ipulasitiki nokugcinwa kwamanzi ngodaka kodaka.

IHydroxYethyl Cellulose inezakhiwo zokuqina, okusolayo, okubophayo, okubonisa ukusabalalisa, nokusabalalisa kanye nokuthambisa. Kungalungiselela izixazululo ku-viscosity ehlukile futhi ine-solubelity enhle kakhulu yama-electrolyte. IHydroxYethyl Cellulose iyifilimu ephumelelayo yangaphambili, i-takitifier, isikhulile, i-stabilizer kanye ne-distrilizer eShampoos, izifutho zezinwele, ama-netharriazers, izimo ze-cosmetics; E-wash powders phakathi kunguhlobo lwe-ejenti yokudambisa ukungcola. IHydroxyYethyl Cellulose ihlakaze ngokushesha ekushiseni okuphezulu, okungasheshisa inqubo yokukhiqiza futhi ithuthukise ukusebenza kahle kokukhiqiza. Isici esisobala sokuhlanza okuqukethe i-hydroxyethyl cellulose ukuthi kungathuthukisa ubushelelezi nokuhlangana kwezindwangu.

I-Hydroxyyethyl celtulose nayo ingasetshenziswa ekwakheni imikhiqizo efana nokuxubana kokhonkolo, izimbiwa ezintsha, udaka lwamatshe noma ezinye izingodo, njll. Ukugcina amanzi ngesikhathi senqubo yokwakha ngaphambi kokuba zihlele futhi zilukhuni. Ngaphezu kokwenza ngcono ukugcinwa kwamanzi kwemikhiqizo yokwakha, i-hydroxyyethyl celtule Yehlisa i-skinning, slippage ne-sagging. Lokhu kungathuthukisa ukusebenza kokwakha, ukuthuthukisa ukusebenza kahle komsebenzi, wonga isikhathi, futhi ngasikhathi sinye ukukhulisa izinga lokunwetshwa kwenani le-Stucco, ngaleyo ndlela ukonga izinto zokwakha.