IHydroxypropylmethylcellulose (HPMC) iyipolymer esetshenziswa kabanzi ezimbonini ezahlukahlukene. I-non-ionic cellulose ether, inyibilika emanzini, ayinabo ubuthi futhi ayicunuli. I-HPMC ivamise ukusetshenziswa njenge-thickener, binder kanye ne-emulsifier ekudleni okuningi, emikhiqizweni yokwelapha kanye neyokunakekelwa komuntu siqu.
Enye yezinto ezibalulekile ze-HPMC isisindo sayo samangqamuzana, esithinta i-viscosity yayo. I-viscosity isilinganiso sokumelana koketshezi nokugeleza. Lapho i-viscosity iphakeme, uketshezi lushubile. Isisindo samangqamuzana isilinganiso sosayizi wamangqamuzana, ahlobene ngokuqondile ne-viscosity ye-HPMC.
I-HPMC itholakala emabangeni ahlukene ngokwesisindo sayo samangqamuzana. I-viscosity ye-HPMC ikhuphuka ngesisindo samangqamuzana. I-viscosity ye-HPMC iphinde ithonywe yizinga lokushintshwa (DS), okuyinani lamaqembu e-hydroxypropyl kanye ne-methyl anamathiselwe kumgogodla we-cellulose. Uma iphezulu i-DS, iphakamisa isisindo samangqamuzana kanye ne-viscosity ye-HPMC.
I-viscosity ye-HPMC nayo iyathinteka ekugxilweni kwe-polymer esixazululweni. Ezimweni eziphansi, amaketanga e-polymer ahlakazeka futhi i-viscosity yesisombululo iphansi. Njengoba ukugxila kukhula, amaketanga e-polymer aqala ukunqwabelana futhi abambene, okuholela ekwandeni kwe-viscosity. Ukugxila lapho amaketanga e-polymer eqala ukugqagqana khona kubizwa ngokuthi ukugxilisana kwe-overlap.
Isisindo samangqamuzana kanye ne-viscosity ye-HPMC yimingcele ebalulekile ekwakhiweni kwemikhiqizo eminingi. Embonini yokudla, i-HPMC isetshenziswa njengesithako sososo, okokugqoka kanye nezimpahla ezibhakwayo. Isisindo esifanele samangqamuzana kanye ne-viscosity ye-HPMC iqinisekisa ukuthungwa okufunayo kanye nokuzwakala komlomo komkhiqizo wokugcina.
Embonini yezemithi, i-HPMC isetshenziswa njengesibopho samaphilisi namaphilisi. Isisindo samangqamuzana kanye ne-viscosity ye-HPMC inquma amandla ethebhulethi kanye nekhono layo lokuncibilika epheshaneni lamathumbu.
Embonini yokunakekelwa komuntu siqu, i-HPMC isetshenziswa njenge-thiener kanye ne-emulsifier kuma-shampoos, izinto zokuthambisa kanye nokhilimu. Isisindo samangqamuzana afanelekile kanye ne-viscosity ye-HPMC iqinisekisa ukuvumelana okuhle nokuqina komkhiqizo.
Ukufingqa, isisindo samangqamuzana kanye ne-viscosity ye-HPMC yimingcele ebalulekile ethinta ukusebenza kwayo ezimbonini ezihlukahlukene. Ukuqonda ubudlelwano phakathi kwala mapharamitha kubalulekile ekwakhekeni kwemikhiqizo ehlangabezana nokucaciswa okufunayo. I-HPMC iyi-polymer eguquguqukayo nebalulekile esiza ukuthuthukisa ikhwalithi nokusebenza kwemikhiqizo eminingi.
Isikhathi sokuthumela: Jul-18-2023