Ukudibana kwefilimu yinkqubo ebaluleke kakhulu kwimveliso yamayeza, apho umntu othe tyaba we-polymer usetyenziswa kumphezulu weetafile okanye zecaphule. Oku kuqalisa i-Ceating isebenza ngeenjongo ezahlukeneyo, kubandakanya ukuphucula imbonakalo, ukukhusela imaski, ukukhusela isithako sexesha elisebenzayo (API), ukukhululwa okukhulu, kunye nokwenza lula ukuginya. I-HydroxyPOpyl Methylcelcelsele (i-HPMC) yenye yezona prolimers zisetyenziswa kakhulu kwifilimu ngenxa yepropathi eguquguqukayo.
1.Imisebenzi ye-HPMC:
I-Hydroxypropyl Methylcelcelculose (HPMC) yi-polymer ye-semi-sydhemetic ethathwe kwi-sellulose. Iphawuleka ngokulinganayo kwamanzi, amandla okwenza ifilimu, kunye nokuhambelana ngokupheleleyo nezithako ezahlukeneyo zamayeza. Iipropathi ze-HPMC zinokulungelelaniswa ngokutshintsha iiparamitha ezifana nobunzima bemolekyuli, isidanga sokufaka kunye novimba.
Ifilimu yefilimu: I-HPMC ineempawu zokwenza ifilimu zefilimu, ivumela ukwenziwa kwe-iyunifomu kunye nepilisi egudileyo kumphezulu weefom zethamo zeyeza.
I-Solibuz yamanzi: I-HPMC ibonisa ukubenzela amanzi, ukuvumela ukutshitshiswa kwePolymer kwizisombululo ze-ACHEOT ngexesha lenkqubo yokuhlalisa. Le mpahla iqinisekisa ukusasazwa kwe-polymer kwaye iququzelele ukumiswa kwe-gomogeneous famines.
Umlinganiso: I-HPMC ibonisa ubunamatheko obuhle kumphezulu weetafile okanye iicaphule, ezikhokelela kwimveliso eqinileyo enamathela kakuhle kwi-substic.
Iipropathi zomthintelo: i-HPMC ibonelela ngesithintelo kwindalo esingqongileyo enjengokufuma, ioksijini, nokukhanya, ngaloo ndlela kukhusela ingqibelelo yemosi kunye nokuphucula uzinzo.
Ukuqwalaselwa kwemali:
Ekwakuquzeni isisombululo esinefilimu sisebenzisa i-HPMC, iinto ezininzi kufuneka ziqwalaselwe ukufezekisa iimpawu ezinqwenelekayo ezinqwenelekayo.
I-Polymer Distination: I-HPMC kwi-HPMC kwiSisombululo sokudibana ichaphazela ubukhulu kunye neempawu zoomatshini zefilimu. I-Polymenti yePolymer ePhezulu ikhokelela kwi-cayishini engaphezulu kunye neepropathi zomqobo ophuculweyo.
Iiplastiki: ukongezwa kweeplasitizeli ezinje nge-polybethylene Glycol (i-Peg) okanye i-proplenene i-Glyycol (PG) inokuphucula ukuguquguquka kunye nokuguquguquka komdlalo, ukuyenza kungabi ngaphantsi kwe-brittle kwaye ixhathise ngakumbi ukuqhekeza.
Izinyibilikiswa: Ukukhetha izinyibilikisi ezifanelekileyo kubalulekile ukuqinisekisa ukubethwa kwe-HPMC kunye nokuqulunqwa kwefilimu efanelekileyo. Izinto eziqhelekileyo eziqhelekileyo zibandakanya amanzi, ethanol, i-Iyopropanol, kunye nemixube yawo.
I-pigments kunye ne-opacifiers: Ukubandakanya ii-pigments kunye ne-opacifiifiers kwifom yokutyikitya kunokudlulisela umbala, inkangeleko, kunye nokubonelela ngokukhuselwa ngokulula amachiza abuthathaka.
3. Iindlela zokusebenzisa i-HPMC kwifilimu
Amatyala ase-HPMC afumana izicelo ezibanzi kumashishini ezenzi kunye nesondlo ngenxa yokuqalisa kwabo kunye nokufaneleka kweefom zedosi ezahlukeneyo.
Ingubo yokukhupha kwangoko: Ingubo ye-HPMC inokusetyenziselwa ukukhutshwa kwamachiza kwangoko ngokulawula ukwahlulahlula kunye nokuchithwa kweetafile okanye iicapsules.
Ukukhutshwa kwe-coatis eguqulweyo: Ifomumu esekwe kwi-HPMC ihlala isetyenziswa kwiifom zedosi eziguqulweyo, kubandakanya ukukhutshwa okwandisiweyo kunye nenkqubo edityanisiweyo ye-faces. Ngokulungisa i-viscofity kunye nobungqingqwa bokudibana, iprofayili yokukhupha ichiza inokulungelelaniswa ukufezekisa ukukhululwa okanye ukukhululwa.
Imaski yemaski ye-comation: I-HPMC I-Coasthings inokuthi imaski engathandekiyo yeziyobisi, ukuphucula ukuthotyelwa koguli kunye nokwamkelwa kweefom zomthetho.
Ukukhuselwa komswakama: I-HPMC I-HPMC ibonelela ngokhuseleko olusebenzayo lokufuma, ngakumbi amachiza amdaka athambekele ekukhokeleni umswakama.
Ukuphuculwa kokuzinza: I-HPMC ye-HPMC ibonelela ngesithintelo sokukhusela izinto zokusingqongileyo, ngaloo ndlela kuphucule uzinzo kunye nesherifu-ubomi beemveliso zamayeza.
I-Hydroxypropyl Methylcelcelsulose (HPMC) idlala indima ebalulekileyo kwi-Famil Counction Izicelo zokuSebenza kwiShishini lamaNyanga. Iipropathi zayo ezizodwa, kubandakanya ubuchule bokwenza ifilimu, ukubenzela amanzi, kunye nepropathi yomqobo, ukwenza ukuba ukhetho olufanelekileyo lokwenza impahla yokusebenza ngemisebenzi eyahlukeneyo. Ngokuqonda ukuqwalaselwa kokuqulunqwa kunye nokusetyenziswa kwe-HPMC kwi-film coating, abavelisi bamachiza kunokuphuhlisa iifom zethamo kunye nokuzinza okuphuculweyo, uzinzo, kunye nokwamkelwa komonde.
IXESHA LOKUQALA: UMar-07-2024