Mayelana nenkinga yokushisa kwejeliI-Hydroxypropyl Methyl Cellulose HPMC, abasebenzisi abaningi abavamile ukunaka inkinga yokushisa kwejeli ye-Hydroxypropyl Methyl Cellulose. Namuhla, i-Hydroxypropyl Methyl Cellulose ngokuvamile ihlukaniswa ngokwe-viscosity yayo, kodwa kwezinye izindawo ezikhethekile kanye nezimboni ezikhethekile, akwanele ukubonakalisa kuphela i-viscosity yomkhiqizo. Okulandelayo kwethula kafushane izinga lokushisa kwejeli ye-Hydroxypropyl Methyl Cellulose.
Inani leqembu le-Methoxyl lihlobene ngqo nezinga lokumuncwa kwe-cellulose, futhi okuqukethwe kweqembu le-Methoxyl kungalungiswa ngokulawula ifomula, izinga lokushisa lokusabela kanye nesikhathi sokusabela. Ngesikhathi esifanayo, izinga lokungasebenzi lithinta izinga lokufakwa esikhundleni kwe-Hydroxyethyl noma i-Hydroxypropyl. Ngakho-ke, ukugcinwa kwamanzi kwe-cellulose ether enokushisa okuphezulu kwejeli kuzoba kubi. Le nqubo yokukhiqiza idinga ukuhlolwa, ngakho-ke akukhona ukuthi izindleko zokukhiqiza ze-cellulose ether ziphansi uma okuqukethwe kwe-Methoxy kuphansi, ngokuphambene nalokho, intengo izoba phezulu.
Izinga lokushisa lejeli linqunywa amaqembu e-methoxyl, kanti ukugcinwa kwamanzi kunqunywa amaqembu e-Hydroxypropoxy. Kunezinhlobo ezintathu kuphela ezingasetshenziswa esikhundleni se-cellulose. Thola izinga lokushisa olisebenzisayo elifanele, ukugcinwa kwamanzi okufanele, bese unquma imodeli yale cellulose.
Izinga lokushisa lejeli liyiphuzu elibalulekile lokusetshenziswa kwei-cellulose ether. Lapho izinga lokushisa elizungezile lidlula izinga lokushisa lejeli, i-cellulose ether izohlukaniswa namanzi futhi ilahlekelwe ukugcinwa kwamanzi. Izinga lokushisa lejeli le-cellulose ether emakethe lingahlangabezana nezidingo zendawo yokusetshenziswa kwe-mortar (ngaphandle kwezindawo ezikhethekile). Mina ngokwami ngicabanga ukuthi akudingekile ukunaka ngokukhethekile inkomba yokusebenza kwezinga lokushisa lejeli lapho kusetshenziswa i-mortar. Vele, ukukhiqizwa kwe-cellulose ether Abakhiqizi kumele bakucabangele.
Isikhathi sokuthunyelwe: Ephreli-25-2024