Cov yam ntxwv thiab daim ntawv thov ntawm Hydroxyethyl Methyl Cellulose HEMC

Cov yam ntxwv tseem ceeb ntawmhydroxyethyl methyl cellulose (HEMC)yog:

1. Kev yaj: yaj tau hauv dej thiab qee cov kuab tshuaj organic, HEMC tuaj yeem yaj hauv dej txias, nws qhov siab tshaj plaws tsuas yog txiav txim siab los ntawm viscosity, solubility sib txawv nrog viscosity, qhov qis dua qhov viscosity, qhov ntau dua qhov solubility.

2. Kev tiv thaiv ntsev: Cov khoom HEMC yog cov non-ionic cellulose ethers thiab tsis yog polyelectrolytes, yog li ntawd nyob rau hauv qhov muaj cov ntsev hlau lossis cov organic electrolytes, lawv ruaj khov nyob rau hauv cov kua dej, tab sis kev ntxiv ntau dhau ntawm electrolytes tuaj yeem ua rau gelation thiab nag lossis daus.

3. Kev Ua Haujlwm Ntawm Qhov Chaw: Vim tias cov kua dej muaj kev ua haujlwm ntawm qhov chaw, nws tuaj yeem siv ua tus neeg sawv cev tiv thaiv colloid, emulsifier thiab dispersant.

4. Thermal gel: Thaum lubHEMCCov kua dej ntawm cov khoom raug cua sov rau qee qhov kub, nws yuav tsaus ntuj, gels, thiab tsim cov dej nag, tab sis thaum nws txias tas li, nws rov qab mus rau lub xeev kua qub, thiab cov gel thiab nag no tshwm sim. Qhov kub feem ntau nyob ntawm lawv cov roj nplua nyeem, cov khoom pab txhawb nqa, cov colloids tiv thaiv, emulsifiers, thiab lwm yam.

5. Kev tsis muaj zog ntawm cov metabolism thiab tsis muaj ntxhiab tsw qab thiab tsw qab: HEMC siv dav hauv cov khoom noj thiab tshuaj vim nws tsis tau metabolized thiab muaj ntxhiab tsw qab thiab tsw qab tsawg.

6. Tshuaj tua kab mob fungal: HEMC muaj peev xwm ua kom cov kab mob fungal zoo thiab ruaj khov viscosity zoo thaum lub sijhawm khaws cia ntev.

7. PH ruaj khov: Qhov viscosity ntawm HEMC cov khoom aqueous kua tsis tshua cuam tshuam los ntawm acid lossis alkali, thiab tus nqi pH ruaj khov nyob rau hauv qhov ntau ntawm 3.0-11.0.

Daim ntawv thov ntawmHydroxyethyl methyl cellulose (HEMC)：

Hydroxyethyl methyl cellulose siv tau ua tus neeg sawv cev tiv thaiv colloid, emulsifier thiab dispersant vim nws lub luag haujlwm ua haujlwm ntawm qhov chaw hauv cov kua dej. Ib qho piv txwv ntawm nws daim ntawv thov yog raws li nram no: Cov nyhuv ntawm hydroxyethyl methyl cellulose rau cov yam ntxwv ntawm cement. Hydroxyethyl methyl cellulose yog cov hmoov dawb tsis muaj ntxhiab, tsis muaj saj, tsis muaj tshuaj lom uas yaj hauv dej txias los ua cov kua ntshiab, viscous. Nws muaj cov yam ntxwv ntawm kev ua kom tuab, khi, tawg, emulsifying, zaj duab xis-tsim, suspending, adsorbing, gelling, surfactant, khaws cov dej noo thiab tiv thaiv colloids. Vim yog lub luag haujlwm ua haujlwm ntawm qhov chaw ntawm cov kua dej, nws tuaj yeem siv ua tus neeg sawv cev tiv thaiv colloid, emulsifier thiab dispersant. Hydroxyethyl methyl cellulose aqueous solution muaj hydrophilicity zoo thiab yog tus neeg sawv cev ua haujlwm siab-tuav dej.