Focus on Cellulose ethers

I-hypromellose yenziwe ngani?

I-hypromellose yenziwe ngani?

IHypromellose, eyaziwa nangokuthi i-hydroxypropyl methylcellulose (HPMC), i-polymer yokwenziwa etholakala ku-cellulose.Yenziwa ngokushintsha amakhemikhali i-cellulose yemvelo etholakala ku-pulp yokhuni noma imicu kakotini ngenqubo eyaziwa ngokuthi i-etherification.Kule nqubo, imicu ye-cellulose iphathwa ngenhlanganisela ye-propylene oxide ne-methyl chloride, okuholela ekwengezweni kwamaqembu e-hydroxypropyl nama-methyl kuma-molecule e-cellulose.

Umkhiqizo ovelayo uyi-polymer encibilika emanzini esetshenziswa ezinhlelweni ezahlukahlukene, kufaka phakathi imithi, izimonyo, imikhiqizo yokudla, nezithako zokudla.IHypromellose itholakala emabangeni ahlukene, ngezisindo zamangqamuzana ahlukahlukene kanye namadigri okushintsha, kuye ngokusetshenziswa okuhlosiwe.

Sekukonke, i-hypromellose ithathwa njengesithako esiphephile futhi esibekezelelwa kahle uma sisetshenziswa njengoba kuyaliwe.Ivamise ukusetshenziswa njenge-ejenti enamathelayo, i-ejenti ejiyayo, kanye ne-stabilizer emikhiqizweni eminingi futhi ihlonishwa ngekhono layo lokuthuthukisa ukuqina komkhiqizo, ukwandisa i-viscosity, kanye nokuthuthukisa ukusebenza komkhiqizo.

 


Isikhathi sokuthumela: Mar-04-2023
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