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:

1. 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.
2. 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.
3. 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.
4. 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.
5. 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 emisayo, kanye ne-ejenti eyenza ifilimu kuma-shampoos, ama-conditioner, ama-creams, ama-lotion, namamaski ukuze kuthuthukiswe ukusebenza komkhiqizo kanye nobuhle.

IHydroxypropyl Methylcellulose (HPMC) yaziswa kakhulu ngenxa yokuguquguquka kwayo, ukuphepha, nokusebenza ngempumelelo kwezinhlelo zokusebenza ezihlukene zezimboni, okunomthelela ekusetshenzisweni kwayo kabanzi kuzo zonke izimboni eziningi.