Iyini iHydroxypropylMethylCellulose
IHydroxypropyl Methylcellulose (HPMC) iyi-ether engeyona ionic cellulose etholakala ku-cellulose yemvelo.Ihlanganiswa ngokuguqulwa kwamakhemikhali e-cellulose, ngokuvamile etholakala ku-pulp yokhuni noma imicu kakotini.I-HPMC isetshenziswa kabanzi ezimbonini ezahlukahlukene ngenxa yezakhiwo zayo eziguquguqukayo kanye nezicelo.
Isakhiwo Sekhemikhali:
- I-HPMC iqukethe umgogodla we-cellulose one-hydroxypropyl kanye nama-substituents e-methyl anamathiselwe kumaqembu e-hydroxyl amayunithi e-glucose.I-degree of substitution (DS) ikhombisa inombolo emaphakathi ye-hydroxypropyl namaqembu e-methyl ngeyunithi ngayinye ye-glucose ochungechungeni lwe-cellulose.Isakhiwo samakhemikhali se-HPMC sinikeza izici ezihlukile njengokuncibilika kwamanzi, ikhono lokwenza ifilimu, nokuguqulwa kwe-viscosity.
Izakhiwo Nezimpawu:
- Ukunyibilika Kwamanzi: I-HPMC iyancibilika emanzini abandayo, emanzini ashisayo, nakwezinye izincibilikisi eziphilayo njenge-methanol ne-ethanol.Ukunyibilika kuncike ezintweni ezifana nezinga lokushintsha, isisindo samangqamuzana, nezinga lokushisa.
- Ukulawulwa Kwe-Viscosity: Izixazululo ze-HPMC zibonisa ukuziphatha kwe-pseudoplastic noma ukushear-thinning, lapho i-viscosity yehla ngokunyuka kwezinga lokugunda.Isetshenziswa kabanzi njenge-thickener, i-rheology modifier, kanye ne-stabilizer ekwakhiweni okuhlukahlukene ukulawula i-viscosity nokuthuthukisa ukuthungwa.
- Ukwakhiwa Kwefilimu: I-HPMC ingakha amafilimu asobala noma akhanyayo lapho yomiswa.Lawa mafilimu anezakhiwo ezinhle zokunamathela, eziguquguqukayo, kanye nezithiyo, okwenza i-HPMC ifanele ukumbozwa, amafilimu, namaphilisi emithi.
- I-Hydration Nokuvuvukala: I-HPMC inobudlelwane obuphezulu bamanzi futhi ingakwazi ukumunca futhi igcine umswakama omningi.Uma ihlakazekile emanzini, i-HPMC i-hydrates ukuze yakhe amajeli anezakhiwo zokugeleza ze-pseudoplastic, ethuthukisa ukugcinwa kwamanzi nokusebenza ekwakhiweni.
- Ukungangeni Kwamakhemikhali: I-HPMC ayisebenzi ngamakhemikhali futhi ayihlanganyeli namakhemikhali abalulekile ngaphansi kwezimo ezivamile zokucubungula nokugcinwa.Ihambisana nohlu olubanzi lwezinye izithako nezithasiselo ezisetshenziswa ekwenziweni.
Izicelo:
- Imithi: Isiza kumathebulethi, amaphilisi, amafutha okugcoba, ama-suspension, kanye nokwakheka okukhishwayo okulawulwayo.
- Ukwakhiwa: Isengezo kumathayela anamathelayo, osimende, ama-renders, ama-plaster, nezinhlanganisela zokuzilinganisa ukuze kuthuthukiswe ukugcinwa kwamanzi, ukusebenza kahle, nokunamathela.
- Amapende nama-Coatings: I-Thickener, i-stabilizer, ne-ejenti yokwakha ifilimu kumapende e-latex, i-emulsion polymerization, nama-coatings ukulawula i-viscosity nokuthuthukisa izakhiwo zefilimu.
- Ukudla Neziphuzo: I-ejenti ejiyayo, i-emulsifier, ne-stabilizer kumasoso, okokugqoka, amasobho, ama-dessert, neziphuzo ukuthuthukisa ukuthungwa nokuzinza.
- Ukunakekelwa Komuntu Siqu Nezimonyo: I-Thickener, i-ejenti emisa okwesikhashana, kanye ne-ejenti eyenza ifilimu kuma-shampoos, ama-conditioner, ama-creams, ama-lotion, namamaski ukuthuthukisa ukusebenza komkhiqizo nobuhle.
IHydroxypropyl Methylcellulose (HPMC) yaziswa kakhulu ngenxa yokuguquguquka kwayo, ukuphepha, nokusebenza ngempumelelo kwezinhlelo zokusebenza ezihlukene zezimboni, okunomthelela ekusetshenzisweni kwayo kabanzi kuzo zonke izimboni eziningi.
Isikhathi sokuthumela: Feb-16-2024