Izakhiwo ezenziwe ngefilimu ze-hydroxcellulop (HPMC) i-methyllulose yezezimboni ze-Industrialsyprosel (HPMC) ziyisici esingukhiye sokusetshenziswa kwayo okusakazekile kumasimu wohlelo lokusebenza amaningi. I-HPMC iyi-ether esondelana yamanzi esetshenziswa kabanzi embonini. Izakhiwo zayo ezakha amafilimu zibandakanya izakhiwo zemishini, izakhiwo ze-Optical, ukuqina kwamakhemikhali, ukuhambisana nezinye izithako, nezinye izithako eziningi.
1. Indlela eyakhayo yefilimu
I-HPMC iyancibilika emanzini ukwakha ikhambi le-colloidal elibonakalayo. Ngemuva kokuthi amanzi avele, ama-molecule we-HPMC kwisixazululo ahlele kabusha futhi axhumene nomunye ukwakha ifilimu eqhubekayo ngamandla athile nokuqina. Ukuba khona kwe-hydroxyproppropylyl (-ch2chohchch3) namaqembu we-methyl
2. Izakhiwo zemishini
Amandla kanye ne-Cuctility
Amafilimu we-HPMC abonisa amandla aphezulu ashukumisayo kanye ne-couctility ephezulu futhi akwazi ukumelana nezingcindezi ezithile zemishini ngaphandle kokuphuka. Lezi zindawo zemishini zihlobene nesisindo samangqamuzana, izinga lokufaka esikhundleni, kanye nokuhlushwa kwesisombululo se-HPMC. I-HPMC enesisindo esiphakeme samangqamuzana kanye nesilinganiso sokufakwa esikhundleni kwesinye isikhathi sakha amafilimu anamandla nama-vegy. Lokhu kwenza i-HPMC ibaluleke kakhulu kuzinhlelo zokusebenza ezidinga amandla aphezulu emishini, njengezinto zokwakha, izimbotshana, kanye namathebulethi wezemithi.
Ukunamathela
Amafilimu we-HPMC anama-adhesion amahle futhi anganamathela kahle ezinhlobonhlobo zezindawo ezingaphansi komhlaba, njengephepha, insimbi, ingilazi kanye nepulasitiki. Le mpahla yenza kube ukusetshenziswa kakhulu kuzimbali kanye nama-adhesives. I-Adhesion nayo iyathinteka ekugxiliseni izixazululo kanye nemibandela yokomisa.
3. Izakhiwo ze-Optical
Amafilimu we-HPMC avame ukuba sobala noma aguqulwe futhi abe nezindawo ezinhle kakhulu zokukhanya. Ukusobala kwalawa mafilimu kuncike kakhulu ekufananeni kwesixazululo, izimo zokomisa, kanye nenani lamabhamu amancane angavela ngesikhathi senqubo yokwakheka kwefilimu. Ukucaca okuphezulu kwenza i-HPMC ilusizo kakhulu kuzinhlelo zokusebenza ezidinga ukubonwa okubonakalayo, njengokuphaphama kokudla, izigqoko zezidakamizwa, kanye nezingubo zokuvikela.
4. Ukuqina kwamakhemikhali
Ukumelana Namanzi
Amafilimu we-HPMC anezinga elithile lokumelana kwamanzi. Yize i-HPMC ngokwayo i-soluble yamanzi, isakhiwo ngemuva kokwakheka kwamafilimu akuchithwa kalula lapho kuvezwa ngamanzi. Le mpahla inenzuzo kwizicelo eziningi, njengeyakha ama-puts, anamathela, kanye nezimbobo ezisuselwa emanzini. Kodwa-ke, ukumelana kwamanzi akuyona into ephelele, futhi ukucwiliswa isikhathi eside emanzini kungadala ukuvuvukala noma ukuqhekeka kwefilimu.
Ukumelana Kwamakhemikhali
Ifilimu le-HPMC linokumelana okuhle kumakhemikhali ahlukahlukene, ikakhulukazi ezindaweni zokungathathi hlangothi ze-acid-base. Lokhu kwenza ilungele izindawo ezithile ezilimazayo, njengezembatho namafilimu avikela embonini yamakhemikhali. Ukuqina kwamakhemikhali kwefilimu ye-HPMC nakho kuyathinteka ngezinga layo lokuwela kanye nemvelo lapho isetshenziswa khona.
5. Izimo ezenziwe ngefilimu
Ukugxila kwesixazululo
Ukuhlushwa kwesixazululo kuthinta ngqo ikhwalithi ekwakheka ifilimu ye-HPMC kanye nezakhiwo zefilimu. Ngokuvamile, ukugxila okuphezulu kwe-HPMC Solutions kwakha amafilimu amakhulu futhi anamandla. Kodwa-ke, ukugxila kakhulu okunokuxilola nakho kungahle futhi kuholele ekuboneni ngokweqile kwesisombululo, okwenza kube nzima ukufaka isicelo ngokulinganayo.
Imibandela yokomisa
Ijubane lokumisa nokushisa linomphumela obalulekile ekwakhekeni nasezakhiweni zefilimu. Amazinga okushisa aphezulu okulonda kanye nesivinini sokumisa ngokushesha kuholela ekwakhekeni kwama-bubble kwifilimu, okuthinta izinto ezisobala kanye nezinto zemishini zefilimu. Inqubo yokumisa kancane isiza ukwakha ifilimu efanayo, kepha ingahle iholele ekuthambekeni okunganele kwe-solvent, okuthinta ikhwalithi yefilimu.
6. Ukuhambisana nezinye izithako
Ifilimu le-HPMC lihambisana kahle nezithasiselo ezahlukahlukene nezinto ezisebenzayo, njengama-spicelizers, ama-crosslizers, ama-fillers, njll. Lokhu kuhambisana kuvumela ukuthi i-HPMC ivumela ukuthi i-HPMC ivumela ukuthi kusetshenziswe i-HPMC ekuhlelweni kwezinto ezihlanganisiwe noma izimbobo ezisebenzayo. Isibonelo, ukungeza amapulasitiki kungathuthukisa ukuguquguquka kwefilimu, ngenkathi ama-ejenti axhumanisa ngokuwela angakhulisa amandla nokuphikiswa kwamanzi kwefilimu.
7. Izindawo zohlelo lokusebenza
Izinto zokwakha
Ezintweni zokwakha, amafilimu we-HPMC asetshenziswa ngodaka oluxutshwe olomile, ama-putty, ukumboza neminye imikhiqizo. Izakhiwo zayo ezakha amafilimu zingathuthukisa ukunamathela, ukuqhekeka kokuqhekeka kanye nokumelana kwamanzi kwemikhiqizo.
Amakhemikhali
Ensimini yezemithi, i-HPMC isetshenziswa njengezinto ezihlanganayo zamathebulethi ezenza amakhambi. Izakhiwo zayo zokwakha amafilimu zingalawula ngempumelelo isilinganiso sezidakamizwa futhi sithuthukise ukuqina nokusebenza kwezidakamizwa.
Imboni yokudla
Amafilimu we-HPMC asetshenziswa njengezinto zokupakisha ezidliwayo embonini yokudla enezakhiwo ezinhle zokuvimbela nokuphepha.
Ukumboza kanye nama-adhesives
Ukunamathelisa kanye nokwelula kwamafilimu we-HPMC kubenza babe ngama-substrates amahle nezinamathela, futhi basetshenziswa kabanzi kuma-coaties embonini kanye nezimboni zokupakisha.
8. Ubungane bezemvelo
I-HPMC ngumkhiqizo oguquliwe osuselwa ku-cellulose yemvelo. Inqubo yayo eyakha amafilimu ayidingi ama-solvents ayingozi futhi ine-biodegrade enhle kanye nobungane bezemvelo. Lokhu kwenza ukubaluleka okukhulu ekuthuthukisweni kwamakhemikhali aluhlaza kanye nezinto ezizinzile.
Izakhiwo ezakha amafilimu ze-HPMC yebanga lezezimboni zikwenza kube yinto ebaluleke kakhulu kwizicelo ezahlukahlukene. Izinzuzo zayo emandleni okusebenza, izakhiwo ze-optical, ukuqina kwamakhemikhali, kanye nokuhambisana okuhle nezinye izinto zikunikeza inqwaba yamandla wesicelo. Noma ngabe ngezinto zokwakha, amakhamishini, ukupakishwa kokudla, noma ngezigqoko nokunamathela, i-HPMC ibonise ukusebenza okuhle kakhulu. Ngokuthuthuka kwesayensi nobuchwepheshe, ubuchwepheshe obabulene amafilimu kanye nezindawo zohlelo lokusebenza lwe-HPMC kuzoqhubeka ukwandisa, ukukhuthaza ukuthuthukiswa kwezicelo ezintsha kakhulu.
Isikhathi sePosi: Jun-29-2024