Rheological Property ya Methyl cellulose Solution

The rheological properties of methylcellulose (MC) solutions ndi yofunika kuti mumvetsetse khalidwe lake ndi ntchito zake zosiyanasiyana. Rheology yazinthu imatanthawuza kutulutsa kwake ndi mawonekedwe ake popsinjika kapena kupsinjika. The rheological katundu wa MC mayankho angakhudzidwe ndi zinthu monga ndende, kutentha, pH, ndi mlingo wa m'malo.

Viscosity

Viscosity ndi imodzi mwazinthu zofunika kwambiri zamachitidwe a MC. MC ndi zinthu zowoneka bwino kwambiri zomwe zimatha kupanga mayankho okhuthala zikasungunuka m'madzi. Kukhuthala kwa mayankho a MC kumadalira kuchuluka kwa yankho, kuchuluka kwa m'malo, komanso kutentha. Kuchuluka kwa njira yothetsera vutoli, kumapangitsanso kukhuthala kwa yankho. Mlingo wolowa m'malo umakhudzanso kukhuthala kwa mayankho a MC. MC yokhala ndi digiri yapamwamba yoloweza m'malo imakhala ndi kukhuthala kwapamwamba poyerekeza ndi MC yokhala ndi digiri yotsika yolowa m'malo. Kutentha kumatha kukhudzanso kukhuthala kwa mayankho a MC. The mamasukidwe akayendedwe a MC mayankho amachepetsa ndi kuwonjezeka kutentha.

Shear Kupatulira Khalidwe

Mayankho a MC amawonetsa kumeta ubweya wa ubweya, zomwe zikutanthauza kuti kukhuthala kwawo kumachepa chifukwa cha kumeta ubweya. Pamene kumeta ubweya wa ubweya kumagwiritsidwa ntchito ku MC yankho, kukhuthala kumachepa, kulola kuti yankho liziyenda mosavuta. Katunduyu ndi wofunikira pakugwiritsa ntchito komwe yankho liyenera kuyenda mosavuta panthawi yokonza, komanso liyenera kusunga makulidwe ake ndi kukhazikika popuma.

Gelation Khalidwe

Mayankho a MC amatha kukhala ndi gelation akatenthedwa pamwamba pa kutentha kwina. Katunduyu amadalira kuchuluka kwa kulowetsedwa kwa MC. MC yokhala ndi digiri yapamwamba yoloweza m'malo imakhala ndi kutentha kwapamwamba kwambiri poyerekeza ndi MC yokhala ndi digiri yotsika yolowa m'malo. Makhalidwe a gelation amayankho a MC ndiofunikira pakugwiritsa ntchito monga kupanga ma gels, ma jellies, ndi mchere.

Thixotropy

MC mayankho amasonyeza thixotropic khalidwe, kutanthauza kuti mamasukidwe akayendedwe amachepetsa pakapita nthawi pamene mpumulo. Pamene kumeta ubweya wa tsitsi kumagwiritsidwa ntchito pa yankho, kukhuthala kumawonjezeka.