Hydroxypropyl Methyl Cellulose HPMC Transparency

High transparency thiab ruaj khov ua haujlwm.

HPMC muaj cov khoom ntawm thermal gelation. Cov khoom aqueous tov yog rhuab los ua ib tug gel thiab precipitates, thiab ces dissolves tom qab txias. Lub gelation kub ntawm txawv specifications txawv. Solubility sib txawv nrog viscosity. Qhov qis dua qhov viscosity, qhov ntau dua qhov solubility. Kev sib txawv ntawm HPMC muaj qee qhov sib txawv hauv lawv cov khoom, thiab kev sib cais ntawm HPMC hauv dej tsis cuam tshuam los ntawm tus nqi pH.

Particle loj: 100 mesh pass tus nqi yog ntau dua 98.5%.

Qhov ceev: 0.25-0.70g / (feem ntau yog 0.4g /), tshwj xeeb lub ntiajteb txawj nqus 1.26-1.31.

Discoloration kub: 200-200 ° C,

Carbonization kub: 280-300 ° C.

Methoxy tus nqi 19.0% rau 30.0%,

Hydroxypropyl tus nqi 4% mus rau 12%.

viscosity (22 ℃, 2%) 5 ~ 200000mPa.s.

gel kub (0.2%) yog 50-90 ° C.

HPMC muaj cov yam ntxwv ntawm thickening peev xwm, ntsev tawm, PH stability, dej tuav, seem stability, zoo heev zaj duab xis-tsim cov cuab yeej thiab ntau yam enzyme kuj, dispersibility thiab cohesiveness.