Focus on Cellulose ethers

Ingabe i-hydroxypropyl methylcellulose iphephile?

Ingabe i-hydroxypropyl methylcellulose iphephile?

I-Hydroxypropyl methylcellulose (HPMC) iwukuphuma kwe-cellulose esetshenziswa kabanzi, ephephile, futhi engenabo ubuthi esetshenziswa ezinhlelweni ezihlukahlukene. Kuyimpushana emhlophe, engenaphunga, enganambitheki, futhi engacunuli encibilika emanzini abandayo futhi yakhe ijeli lapho ishiswa. I-HPMC isetshenziswa ezimbonini ezahlukahlukene, okuhlanganisa ukudla, imithi, kanye nemikhiqizo yezimonyo.

I-HPMC i-semi-synthetic polymer etholakala ku-cellulose, okuyi-polysaccharide yemvelo etholakala ezitshalweni. Kuyi-polymer engeyona i-ionic, encibilika emanzini esetshenziswa njenge-ejenti ejiyayo, i-stabilizer, i-emulsifier, ne-ejenti elengayo. I-HPMC iphinde isetshenziswe njenge-ejenti yokwenza ifilimu, i-binder, kanye ne-lubricant emikhiqizweni eyahlukene.

I-HPMC ngokuvamile ibhekwa njengephephile ukuze isetshenziswe ekudleni, emikhiqizweni yezemithi, nasezinhlelweni. Kugunyazwe i-US Food and Drug Administration (FDA) ukuthi isetshenziswe ekudleni nasemikhiqizweni yezemithi, futhi igunyazwe yi-European Union ukuze isetshenziselwe ukudla, imithi, kanye nemikhiqizo yezimonyo. I-HPMC iphinde igunyazwe yiNhlangano Yezempilo Yomhlaba (i-WHO) ukuthi isetshenziswe emikhiqizweni yezemithi.

Mayelana nokuphepha, i-HPMC ithathwa njengengenabo ubuthi futhi ayicunuli. Ihlolwe ezifundweni zezilwane futhi kwatholakala ukuthi ayinabo ubuthi futhi ayicasuli. Kubuye kubhekwe njengento engeyona i-allergenic futhi engazweli.

I-HPMC iphinde ibhekwe njengengaboli futhi ivumelane nemvelo. Akwaziwa ukuthi inqwabelana endaweni ezungezile futhi ayibhekwa njengosongo empilweni yasemanzini.

Sekukonke, i-HPMC iwukuphuma kwe-cellulose ephephile futhi engenabo ubuthi esetshenziswa ezimbonini ezahlukahlukene. Igunyazwe yi-FDA, EU, kanye ne-WHO ukuze isetshenziswe ekudleni, emikhiqizweni yezemithi, nasezinhlelweni. Ayinabuthi, ayicunuli, ayina-allergenic futhi ayizwakali. Iyakwazi ukubola futhi ihambisana nemvelo. Ngalezi zizathu, i-HPMC ithathwa njengesithako esiphephile nesisebenzayo sokusetshenziswa emikhiqizweni eyahlukene.


Isikhathi sokuthumela: Feb-10-2023
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