I-HydroxyPOpyl Methylcelcelsele (i-HPMC ye-HPMC) yi-soli-synthetic Polymer esetyenziswe ngokubanzi kwiimveliso ezahlukeneyo zemizi-mveliso kunye nemihla ngemihla. Kwicandelo lokucombulula, i-HPMC ihamba kancinci iba yindawo eyinqobo yokusebenza esekwe kwintsebenzo ebalaseleyo.
1. Iipropathi ezisisiseko ze-HPMC
I-HPMC yi-ionic se-ionic sether i-ether eyenziwe kwi-seluplose yendalo ngokuguqulwa kweekhemikhali. Ineempawu eziphambili:
I-Solibuy yamanzi: I-HPMC inokunyibilikisa emanzini abandayo kunye namanzi ashushu ukwenza isisombululo se-viscous edluliselweyo.
Uzinzo: Zizinzile kwi-acidic okanye i-alkaline Media, engakhathali kuguquko lobushushu, kwaye uxhathise ubushushu kunye nokuchasana nokukhululeka.
Ukuthambisa: I-HPMC inefuthe elihle kakhulu, inokuthintela ngokufanelekileyo i-viscofity yenkqubo engamanzi, kwaye akukho lula ukuyidibanisa.
Ukwenza ifilimu: I-HPMC inokwenza ifilimu efanayo kumphezulu ukubonelela ngeziphumo zokhuselo kunye nezodwa.
Ziziimpawu ezenza isicelo se-HPMC kwimichiza inamathuba amakhulu kunye nexabiso.
2. Indima ye-HPMC ye-orgents
Ukucofa, imisebenzi ephambili ye-HPMC ibandakanya ukuqina, ukuzinza, ukumiswa, kunye nokwenziwa kwefilimu. Imisebenzi ethile yile ilandelayo:
Tickener
Izicoci zihlala zifuna ukugcina i-viscofity ethile yokuphucula amava omsebenzisi. I-HPMC inokubangela imeko yecolloidal ngokuzinzileyo ngokudibanisa amanzi ukuze kwandise u-viscomosity we-orchegent. Kwiindawo zokucoca amanzi olwenzi, uVekyusi ofanelekileyo unokuthintela ukuhamba kakhulu, ukwenza ukuba imveliso ilula ukuyilawula kwaye isasaze xa isetyenziswa. Ukongeza, ukuqaqanjelwa kunokunceda ukuphucula ukubanjwa kwesicoci, kuyenza ukuba ityhutyha xa isetyenziswa okanye ithulule, kwaye ihambisa amava okusebenzisa okokonwaba.
I-stabilizer
Izicoci ezingamanzi zihlala zine-sundocapes, i-cygrances, imigangatho kunye nezinye izithako. Ngexesha lokugcina ixesha elide, ezi zithako zinokuba zizodwa okanye zibolile. I-HPMC inokusetyenziswa njenge-stabilizer ukuba ithintele ukwenzeka koko. Yenza ulwakhiwo lwenethiwekhi efanayo, i-incamputs kunye neyokusasaza izithako ezahlukeneyo, kwaye igcine iyunithi kunye nokuzinza kwexesha elide kunye nokwahlula kwexesha elide.
Ukumiswa kwearhente
Amanye amasuntswana aqinileyo (njengamasuntswana anqabileyo okanye izithako ezithile zokunxiba) zihlala zongezwa kwizicoci zanamhlanje. Ukwenzela ukuthintela la masuntswana ekusombululeni okanye ekuhlaleni kulwelo, i-HPMC njengearhente yokumisa inokunqumama ngokufanelekileyo amasuntswana aqinileyo kwi-iyunifori yamasuntswana ngexesha lokusetyenziswa. Oku kungaphucula amandla okucoca impumelelo kwaye kuqinisekiswe ukuba inokwenziwa rhoqo ngexesha lonke isetyenziswa.
Iarhente yokwenza ifilimu
Iipropathi zokwenza ifilimu ze-HPMC zenza ukuba ihlulwe kwezinye izicoci ezithile. Umzekelo, kwezinye iithayile zefanitshala okanye i-HPMWASCERS, i-HPMC inokwenza ifilimu yokukhusela ngaphezulu komphezulu emva kokucoca, ukuphucula ubugqwetha komphezulu wento ngelixa inciphisa intsalela yamabala okanye amabala amanzi. Le filimu inakho ukusebenza njengedwa ukubekwa yedwa ukuthintela umphezulu wento ukusuka ekunxibelelaneni kakhulu nemeko yangaphandle, ngaloo ndlela yandisa ukuqina kwempembelelo yokucoca.
I-roisturizer
Kwezinye iimveliso zokuhlamba, ngakumbi isepha yesandla okanye iimveliso zebhafu ezingena ngokuthe ngqo nolusu, i-HPMC inesiphumo sokunyanyekisa. Inganceda ukunciphisa ukulahleka kwamanzi ngexesha lenkqubo yokuhlamba, ngaloo ndlela kuphepha ulusu olomileyo. Ukongeza, inokuzisa isiphumo esithambileyo sokukhusela, senze ukuba ulusu luthambe kwaye lihlekise.
3. Ukusetyenziswa kwe-HPMC kwiintlobo ezahlukeneyo zezicoci
Izicoci ezingamanzi
I-HPMC isetyenziswa ngokubanzi kwizitoreni ezingamanzi, ngakumbi kwiimveliso ezifana neendawo zokucoca iimpahla kunye nezicoci zokuchitheka. Inokuhlengahlengisa i-viscosity yeziqwenga zonyuselo kunye nokomeleza ukusasazeka kunye namava okusebenzisa iimveliso. Ukongeza, i-HPMC iyanyibilika emanzini kwaye ayichaphazeli isiphumo sokucoca iziqwenga zokucoca.
I-banitizers yesandla kunye neegels zeshawari
I-HPMC ikwakhona njenge-thi cuickener kunye ne-suistizer kwiimveliso zononophelo zobuqu ezifana ne-sashiters kunye nee-gesi zeshawari. Ngokwandisa i-viscofity yemveliso, isicoci akukho lula ukutyibilika izandla, ukuphucula ukusetyenziswa kwayo. Ukongeza, i-HPMC inokukunciphisa ukukhathazeka kulusu kwaye lukhusele ulusu lonakaliswe yindawo yangaphandle.
Ukuhlamba i-powder kunye neendlela eziqinileyo
Nangona i-HPMC ingasetyenziswanga kwizitolo eziqinileyo, isenokudlala indima yokuhlaselwa kunye nokuzifula kwendima yendlela ethile yokuhlamba umzimba. Ingathintela umgubo ukusuka kwi-ageglomeram kwaye iqinisekise ukuba izenzo zayo ezintle xa zisetyenziswa.
Iicoci lomsebenzi olukhethekileyo
Kwezinye iindawo zokucoca kwimisebenzi ekhethekileyo, njengamanyathelo aselwandle, i-phosphate-i-phosphate-i-phosphate-phot, i-HPMC, njengenxalenye yefomyula ye-computer, inokuphucula ixabiso elongeziweyo zezi mveliso. Ingasebenza nezinye izithako ezisebenzayo zokuphucula isiphumo kunye nokuzinza kwemveliso.
4. Ukuphuhliswa kwe-HPMC kwi-HPMC kwicandelo lezinto zokucoca
Njengokufuna abathengi ukukhusela izehlo kunye nonyuso lwezempilo, ukuqulunqwa kwezintolo ezihlathisiweyo ngokuthe ngcembe kuluhlaza kunye nolwalathiso lwendalo ngakumbi. Njengobuhlobo obububuhlobo obusikelwe kwendalo obufumaneka kwi-seluplose yendalo, i-HPMC yi-biodegrades kwaye ayiyi kuba natyala indalo esingqongileyo. Ke ngoko, kuphuhliso lwexa elizayo lokuphuhliswa kwezicoci, i-HPMC kulindeleke ukuba yandise iindawo zayo zesicelo.
Ngokuqhubela phambili kwetekhnoloji yokucoca, ubume bemolekyuli ye-HPMC bunokufumaneka ngakumbi kwaye baguqulwe ukuphuhlisa iimveliso ezisebenzayo. Umzekelo, ngokuphucula ukuziqhelanisa neqondo lokushisa okanye i-PH, i-HPMC inokugcina ukusebenza kakuhle phantsi kweemeko ezigqithisileyo.
I-HPMC iye yaba yenye yeezongezo ezibalulekileyo kwicandelo lokucoca ngenxa yeempawu zayo ezibalaseleyo zomzimba kunye neekhemikhali ezifana nokutyibilika, ukuzinza, ukumiswa kwefilimu, kunye nokumiswa. Ayiphumi nje kuphela amava okusebenzisa iziqwengana, kodwa ikwanika iimveliso uzinzo olomeleleyo kunye nokusebenza. Kwixesha elizayo, kunye nokuqhubela phambili kwesayensi kunye netekhnoloji, ithemba lesicelo le-HPMC kwimichiza iya kuba libanzi, kwaye iya kuzisa izisombululo ezinobuchule kwishishini.
IXESHA LOKUQALA: USep-29 ukuya ku-4024