Hydroxypropyl Methyl Cellulose HPMC
I-Hydroxypropyl methylcellulose (HPMC), i-ether ye-cellulose engeyiyo i-ionic, ivela kwi-cellulose yendalo ngokusebenzisa uchungechunge olungqongqo lweenkqubo zemichiza. Lo mgubo omhlophe ubonakaliswa yindalo yawo engenavumba kwaye ayinancasa, inikezela ukuba ingabi netyhefu kwaye ikhuselekile kwizicelo ezahlukeneyo. Enye yeempawu zayo eziphawulekayo kukukwazi ukunyibilika emanzini abandayo, okukhokelela kwisisombululo esicacileyo se-viscous. I-HPMC inoluhlu olubanzi lweepropathi ezisebenzayo, ezibandakanya ukutyeba, ukuncamathela, ukusasazwa, ukumiliselwa, kunye nesakhono sokwenza ifilim. Ukongeza, iyagqwesa ekugcineni ukufuma, i-gelation, kunye nomsebenzi ongaphezulu, iyenza ibe yikhompawundi eguquguqukayo kuwo wonke amashishini amaninzi, afana namayeza, imveliso yokutya, ukwakhiwa, kunye nezithambiso.
Kwicandelo lolwakhiwo, i-HPMC ifumana intaphane yezicelo eziyimfuneko ekwandiseni umgangatho kunye nokusebenza kakuhle kwemathiriyeli yokwakha. Umzekelo, xa idityaniswe kudaka lwesamente-isanti, i-HPMC iphucula ngokubonakalayo ukusasazeka kwemathiriyeli, okukhokelela kuphuculo lweplastiki kunye nokugcinwa kwamanzi okuphuculweyo ekugaleleni udaka. Lo mba ubalulekile, njengoko unceda ukuthintela ukuqhekeka kwezakhiwo, ngaloo ndlela ukwandisa ubomi kunye nokuzinza kolwakhiwo. Ngokufanayo, kumxholo we-ceramic tile mortar, i-HPMC ayiphuculi kuphela ukugcinwa kwamanzi kodwa kunye nokunamathela kunye neplastiki, ebalulekileyo ekusebenzeni okusebenzayo kunye nokuphila ixesha elide ngaphandle komcimbi we powdering.
Ngaphaya koko, i-HPMC ithobelana nemigaqo engqongqo yokhuseleko, ebonwa njengeyongezo yokutya engona tyhefu ukuze isetyenziswe, ingenaxabiso lekhalori kwaye ingaluthukuthezi ulusu kunye nenwebu. Ngokwezikhokelo ze-FDA kunye ne-FAO / WHO, ukuvunyelwa kwansuku zonke kwe-HPMC kubekwe kwi-25mg / kg, ukubonelela ngesiqinisekiso sokusetyenziswa kwayo kwizicelo ezahlukeneyo. Nangona kunjalo, izilumkiso ziyimfuneko xa uphethe i-HPMC ukuqinisekisa ukhuseleko ngexesha lokusetyenziswa kwayo. Kuyacetyiswa ukuba unxibe izixhobo ezikhuselayo, uthintele ukuchanabeka kwimithombo yomlilo, kwaye unciphise ukuveliswa kothuli kwiindawo ezivaliweyo ukunciphisa umngcipheko wokudubula. Ngaphezu koko, i-HPMC kufuneka igcinwe kwindawo eyomileyo, enomoya owaneleyo, ikhuselwe kwilanga elithe ngqo kunye nokufuma, kunye nengqalelo efunekayo ngexesha lokuthutha ukuyikhusela emvuleni nakwezinye izinto zemozulu. I-HPMC ipakishwe ngokukhuselekileyo kwiingxowa ze-25 kg ezenziwe nge-polypropylene, ezifakwe nge-polyethylene ukwenzela ukhuseleko olongezelelweyo, ukuqinisekisa ukuba imveliso ihlala itywinwe kwaye ingaguquki de isetyenziswe.
