Rheological zvidzidzo zve hydroxypropyl methylcellose (HPMC) masisitimu akakosha akakosha kuti unzwisise maitiro avo mune dzakasiyana siyana. HPMC is cellulose ether inobva yakashandiswa zvakanyanya seyemumiririri, stabilizer, uye emulsifier nekuda kwekugona kwayo kugadzirisa zvivakwa zvemhinduro uye kumiswa.
1.Viscosity zviyero:
Viscosity ndeimwe yezvinhu zvakakosha zvimiro zvakatsanangurwa zvivakwa zvakadzidzwa muHPMC Systems. Maitiro akasiyana-siyana akadai seTortational Biscometry, Capillary Viscometry, uye Oscillory Rheometry anoshandirwa kuyera viscosity.
Izvi zvidzidzo zvakazara mhedzisiro yezvinhu zvakaita seHPMC kusimba, zvinorema, degree rekutsiva, tembiricha, uye shear rate pane viscosity.
Kunzwisisa viscosity kwakakosha sekuti inosarudza iyo inoyerera maitiro, kugadzikana, uye kunyorera masisitimu eHPMC yakapetwa system.
2.Shear-kuonda maitiro:
HPMC Solutions kazhinji inoratidzira Shear-kuonda maitiro, zvichireva viscoity yavo inoderera nekuwedzera shear rate.
Rheological zvidzidzo zvinodedera kusvika pamwero wekutetepa-kutetepa uye kutsamira kwaro pazvinhu zvakaita sePolymer Constrenration uye tembiricha.
Unoratidza shear-kuonda maitiro akakosha kune zvinoshandiswa sejasi uye kuyerera, uko kuyerera panguva yekushandisa uye kugadzikana mushure mekunyora.
3.Thixotropy:
The thiskotropy inoreva nguva yekuvimbika yekudzoreredzwa kweViscosity mushure mekubviswa kwekushushikana. Vazhinji HPMC Systems vanoratidza maitiro eTixotropic, iyo inobatsira mukushandisa inoda kudzorwa kuyerera uye kugadzikana.
Rheological zvidzidzo zvinosanganisira kuyera kudzoreredzwa kwe viscosity nekufamba kwenguva mushure mekusimbisa hurongwa hwekushungurudza.
Kunzwisisa
4.Ku:
Pazvivakwa zvakakwirira kana neakanyanya zvekuwedzera, HPMC Solutions inogona kuiswa gelation, kugadzira network chimiro.
Rheological zvidzidzo zvinoongorora maitiro egwenzi maererano nezvinhu zvakadai sekusatya, tembiricha, uye Ph.
Zvidzidzo zveGlocles zvakakanganisika zvekugadzira kusunungura-kusunungura zvinodhaka zvinodhaka uye kugadzira zvigadzirwa zveGel-based mune zvekudya uye maindasitiri ekuchengeta.
5.Straudilation yetsika:
Nhungamiro dzakadai sediki-kona x-ray kupararira (Saxs) uye rheo-saxs inopa ruzivo rwehupfumi hweHPMC masisitimu eHPMC.
Zvidzidzo izvi zvinoratidza ruzivo nezvePolymer Chain Comment, Aggregation maitiro, uye kutaurirana pamwe ne solvent mamorekuru.
Kunzwisisa zvigadzirwa zvinobatsira mukufanotaura macroscopic rheological maitiro uye optimizing formation yezvinhu zvaunoda zvivakwa.
6.dynamic mechanical quanis (Dma):
Dma matanho eViscoelastic zvivakwa zvezvinhu zviri pasi pe oscillatory deformation.
Rheological zvidzidzo uchishandisa DMA ECUCDITATE parameter sechengetedzo Modulus (G '), kurasikirwa mwoluus (g "), uye yakaoma viscosity sebasa rekugara uye tembiricha.
DMA inonyanya kubatsira pakuratidzira iyo yakasimba-yakaita uye yakaita kunge maitiro eHPMC Gels uye pastes.
7.Application-yakatarwa zvidzidzo:
Zvidzidzo zveRheological zvinokatyamadzwa kuti zvikumbiro zvakadai semapiritsi emishonga, apo HPMC inoshandiswa sechibhoni, kana mune zvigadzirwa zvekudya zvakaita sakarukwa uye majira, mairi anoita sedhizimusi uye stabilizer.
Zvidzidzo izvi zvinogadzirisa HPMC formations dzechidikanwa dzinodiwa dzinoyerera, kuumbwa, uye shefu kugadzikana, kuita chigadzirwa chekuita uye kugamuchirwa kwevatengi.
Rheological zvidzidzo zvinokosha basa rakakosha mukunzwisisa maitiro akaomarara eHPMC thickeer masystem. Nekuita kusarudzika viscossity, shear-inotetepa, gelation, maitiro ezvekugadzira, zvidzidzo zvekushandisa, zvidzidzo izvi zvinogonesa kugadzirwa kweHPMC-yakavakirwa maindasitiri akasiyana siyana.
Kutumira Nguva: May-10-2024