Hydroxypropylmethylsellose (HPMC) ndeye cellulose inobva kuwanzoshandiswa inowanzoshandiswa mune dzakasiyana siyana maindasitiri, kusanganisira mishonga yemishonga, kuvaka uye chikafu. View viscoity inogona kusiyana zvichienderana nezvinhu zvakaita sehuremu hwayo hwemanyorerwe, degree rekutsiva, uye mhinduro yekusimbisa.
Nhanganyaya kuHydroxyPropyl Methylcellose (HPMC)
HydroxyPropyl methylcellose ndeye semi-synthetic polymer inowanikwa nemakemikari kugadziridzwa kwemheremalose. Nekuda kwezvivakwa zvaro zvakasarudzika, zvinoshandiswa zvakanyanya sedhizimusi, gelling mumiririri, firimu raimbova uye stabilizer mune dzakasiyana siyana application.
Molecular chimiro uye kuumbwa
HPMC inoenderana neCellulose Backbone ine hydroxypruppropyl uye madzinza anoongorora. Dhigirii rekutsiva Iyo chaiyo DS kukosha inokanganisa iyo yemuviri uye yemakemikari zvivakwa zveHPMC.
HPMC viscosity
Viscosity is anokosha paramende yeHPMC, kunyanya mune zvikumbiro zvinoshandisa zvivakwa zvaro uye zvichikonzera zvivakwa.
Iyo viscosity yeHPMC mhinduro inokanganiswa nezvakawanda zvinhu:
1. Molecular uremu
Uremu hwehurume hweHPMC hunobata zvavakaita. Muzhinji, wepamusoro molecular uremu HPMCS dzinowanzoburitsa zvakakwirira zveviscoss mhinduro. Kune mamwe mamakisi eHPMC pamusika, imwe neimwe ine yayo yakasarudzwa molecular uremu huwandu.
2. Degree rekutsiva (DS)
Iyo DS HYDROXYPROPYLL uye NDEROXY mapoka anokanganisa iyo Solubility neViscosity yeHPMC. Yakakwira DS tsika dzinowanzoguma nekuwedzera mvura solubility uye madhiri maviri.
3. Kusvinura
Iko kusangana kweHPMC mune mhinduro chinhu chakakosha chinokanganisa viscosity. Sezvo kusungwa kunowedzera, viscosity kazhinji kunowedzera. Ukama uhwu hunowanzotsanangurwa nekrieger-dougherty equation.
4. Tembiricha
Tembiricha zvakare inokanganisa iyo visikopa yeHPMC mhinduro. Kazhinji kutaura, viscosity inoderera sekupisa kwekuwedzera.
Nzvimbo dzekushandisa
Pharmaceutals: HPMC inowanzoshandiswa mune yemishonga mafomu, kusanganisira mahwendefa uye ofhthalmic mhinduro, uko kusunungurwa kwakadzorerwa uye viscosity yakadzora.
Kuvaka: Mune indasitiri yekuvaka, HPMC inoshandiswa seyakakwenenzverwa mune zvigadzirwa-zvakavakirwa zvigadzirwa kuti uvandudze kugona uye nekuchengetwa kwemvura.
Indasitiri yeChikafu: HPMC inoshandiswa seanoti, STabilizer uye emulsifier mune zvekudya zvekudya.
Iyo viscosity ye hydroxyprosyl methylcellose inzvimbo yakaoma iyo yakakanganiswa nezvinhu zvakawanda zvakakanganiswa nezvinhu zvakawandisa sehuremu hwemanyorerwe, degree rekutsiva, tembiricha uye tembiricha. Mavara akasiyana eHPMC aripo kuti akwanise kunyorera zvikumbiro, uye vagadziri vanopa technical data mashizha anotsanangura iyo viscosity yegirazi regiredhi rimwe nerimwe mumamiriro ezvinhu akasiyana siyana pasi pemamiriro akasiyana siyana. Vanotsvagurudza uye vaongorori vanofanira kufunga nezvezvinhu izvi kuti vagadzirise zvivakwa zveHPMC kusangana nezvinodiwa zvezvakarongwa.
Kutumira Nguva: Jan-20-2024