Wazi kangakanani ngeHydroxypropyl methyl cellulose?

IHydroxypropyl methylcellulose (HPMC) i-cellulose ether etholakala ku-cellulose yemvelo. Kuyi-polymer yokwenziwa, encibilika emanzini, engeyona i-ionic evame ukusetshenziswa ezimbonini ezahlukahlukene ezifana nezokwakha, ezemithi, ukudla, izimonyo, nezindwangu.

I-HPMC ikhiqizwa ngokushintsha amakhemikhali i-cellulose nge-propylene oxide ne-methyl chloride ukwethula i-hydroxypropyl namaqembu e-methyl ku-molecule ye-cellulose. Izinga lokushintshwa (DS) le-HPMC libhekisela enanini le-hydroxypropyl namaqembu e-methyl ngeyunithi ngayinye ye-anhydroglucose (AGU) ye-cellulose.

I-HPMC inezici ezimbalwa eziyenza ibe wusizo ezinhlelweni ezihlukahlukene. Iyancibilika emanzini, yakha isixazululo esicacile, futhi inokuqina okuhle kokushisa. Iphinde izinze ngaphansi kwezimo ezijwayelekile zokushisa kanye ne-pH futhi ayiboli kalula. I-HPMC iyi-hygroscopic, okusho ukuthi ingakwazi ukumunca futhi igcine umswakama. Ayinabuthi, ayicunuli, futhi ayiyona i-allergenic, okwenza iphephe ukusetshenziswa ezinhlelweni eziningi.

Embonini yezokwakha, i-HPMC isetshenziswa njenge-thickener, binder, kanye ne-ejenti yokugcina amanzi emikhiqizweni esekwe usimende, izinto zokunamathisela zamathayela, amapulasi, nezinye izinto zokwakha. Embonini yezemithi, i-HPMC isetshenziswa njenge-binder, disintegrant, kanye nefilimu-yangaphambili ekwakhiweni kwethebhulethi nama-capsule. Embonini yokudla, i-HPMC isetshenziswa njenge-thickener, emulsifier, kanye ne-stabilizer emikhiqizweni eyahlukene. Kwezimonyo, i-HPMC isetshenziswa njenge-thickener, ifilimu-yangaphambili, kanye ne-emulsifier kumakhilimu, izinto zokuthambisa, nokunye ukwakheka.

Sekukonke, i-HPMC iyi-polymer eguquguqukayo futhi ewusizo enezinhlobonhlobo zezinhlelo zokusebenza ezimbonini ezahlukahlukene ngenxa yezakhiwo zayo ezihlukile.