Chii chinonzi Chemical Properties yeHypromellose?

Hydroxypropyl Methylcellulose (HPMC), inozivikanwawo seHypromellose, i polymer yakagadzirwa kubva muselulosi. Zvimiro zvayo zvemakemikari zvinosanganisira:

1. Solubility: HPMC inonyungudika mumvura uye inoumba mhinduro yakajeka kana yakasanganiswa nemvura. Kunyungudika kweHPMC kunoenderana nedhigirii rekutsiva (DS) uye viscosity giredhi.
2. Viscosity: HPMC inowanikwa mune akasiyana viscosity mamakisi, kubva pasi kusvika kune yakakwira viscosity. Iyo viscosity yeHPMC inoenderana nehuremu hwayo hwemamorekuru, dhigirii rekutsiva, uye kuisa pfungwa.
3. Kugadzikana: HPMC yakagadzikana pasi peyakajairika mamiriro ekushisa uye pH. Iyo inopesana nehutachiona hwehutachiona uye haina kuora nyore nyore.
4. Thermal properties: HPMC ine kugadzikana kwakanaka kwekupisa uye inogona kumira kutonhora kusvika ku200 ° C pasina kuora.
5. Chiitiko chepamusoro: HPMC ine chiitiko chepamusoro nekuda kwechimiro chayo chepolar, chinoita kuti ive yakakosha seanoparadzira uye emulsifier mumashandisirwo akasiyana siyana.
6. Hygroscopicity: HPMC is hygroscopic, zvichireva kuti ine tsika yekutora unyoro kubva kunharaunda. Ichi chivakwa chinoita kuti chishande semumiriri wekuchengetedza mvura mune akasiyana maapplication.
7. Kemikari reactivity: HPMC haina makemikari inert uye haibatike nemamwe makemikari. Nekudaro, inogona kuumba hydrogen zvisungo nemamwe mamorekuru epolar, izvo zvinoita kuti ishande seyakakora, bhainda, uye firimu-yekare mune akasiyana maapplication.

Muchidimbu,HPMCine akati wandei emakemikari zvimiro anoita kuti ive inosiyana-siyana uye inobatsira polymer mumaindasitiri akasiyana, kusanganisira mishonga, chikafu, zvekuzora, uye kuvaka. Kunyungudika kwayo, viscosity, kugadzikana, kupisa kwezvinhu, basa repamusoro, hygroscopicity, uye reactivity yemakemikari inoita kuti ive yakakodzera kune zvakasiyana-siyana zvekushandisa.