Hydroxyethyl cellulose ndi ethyl cellulose

Hydroxyethyl cellulose ndi ethyl cellulose ndi zinthu ziwiri zosiyana. Iwo ali ndi makhalidwe otsatirawa.

Hydroxyethyl cellulose

Monga surfactant yopanda ionic, kuphatikiza kukhuthala, kuyimitsa, kumanga, kuyandama, kupanga filimu, kubalalitsa, kusunga madzi ndikupereka ma colloids oteteza, ilinso ndi izi:

1. HEC imasungunuka m'madzi otentha kapena ozizira, ndipo sichimawotcha kutentha kwambiri kapena kutentha, kotero kuti imakhala ndi mitundu yambiri ya solubility ndi viscosity, ndi gelation yopanda kutentha;

2. Zopanda ionic zokha zimatha kukhala pamodzi ndi ma polima ena osungunuka m'madzi, ma surfactants ndi mchere, ndipo ndi yabwino kwambiri ya colloidal thickener yomwe ili ndi 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 colloid yotetezera imakhala ndi mphamvu zolimba kwambiri.

Ethyl cellulose

Ndi non-ionic cellulose ether amene sasungunuke m'madzi koma sungunuka mu zosungunulira organic. Lili ndi izi:

1. Zosavuta kuwotcha.

2. Kukhazikika kwamafuta abwino komanso thermoplasticity yabwino kwambiri.

3. Palibe kusinthika kwa kuwala kwa dzuwa.

4. Kusinthasintha kwabwino.

5. Zinthu zabwino za dielectric.

6. Ili ndi kukana kwambiri kwa alkali komanso kufooka kwa asidi.

7. Kuchita bwino koletsa kukalamba.

8. Kukana bwino kwa mchere, kuzizira ndi kuyamwa kwa chinyezi.

9. Kukhazikika kwa mankhwala, kusungidwa kwa nthawi yaitali popanda kuwonongeka.

10. Yogwirizana ndi ma resins ambiri ndikugwirizana bwino ndi mapulasitiki onse.

11. N'zosavuta kusintha mtundu pansi pa malo amphamvu amchere komanso kutentha.