Hydroxyethyl cellulose
Ndi polima yopanda ionic yosungunuka m'madzi, yoyera kapena yachikasu pang'ono, yosavuta kuyenda, yopanda fungo komanso yopanda kukoma, yosungunuka m'madzi onse ozizira ndi madzi otentha, ndipo kusungunuka kumawonjezeka ndi kuwonjezeka kwa kutentha. Insoluble mu organic solvents.
Katundu wahydroxyethyl cellulose:
1. HEO imasungunuka m'madzi otentha kapena ozizira, ndipo sichimawotcha kutentha kwambiri kapena kuwira, choncho imakhala ndi mitundu yambiri ya solubility ndi viscosity, komanso gelation yopanda kutentha.
2. Zopanda ionic zokha zimatha kukhala pamodzi ndi ma polima ena osungunuka m'madzi, ma surfactants ndi mchere, ndipo ndi colloidal thickener yabwino kwambiri yothetsera ma electrolyte apamwamba kwambiri.
3. Mphamvu yosungira madzi imakhala yowirikiza kawiri kuposa ya methyl cellulose, ndipo imakhala ndi malamulo oyendetsera bwino.
4. Poyerekeza ndi methyl cellulose yodziwika bwino ndi hydroxypropyl methyl cellulose, mphamvu yobalalika ya HEC ndiyoipa kwambiri, koma mphamvu yoteteza colloid ndiyo yamphamvu kwambiri.
Nthawi yotumiza: Apr-26-2024