Hydroxyethyl Cellulose Ether

Hydroxyethyl cellulose ether isiri-ionic mvura-inonyungudika polima, inonyungudika mumvura inopisa uye inotonhora.Hydroxyethyl cellulose ether ine huwandu hwakasiyana hweviscosities, uye ese aqueous mhinduro haisi yeNewtonian.

Hydroxyethyl cellulose ether ine yakanaka kwazvo hydration zvivakwa.Mhinduro yaro ine aqueous yakatsetseka uye yakafanana, ine mvura yakanaka uye inoyerera

Inotevera ndiyo yakakodzera mamorekuru chimiro formula yehydroxyethyl cellulose ether:

N = dhigirii rekuunganidza

Pane mapoka matatu ehydroxyl pane imwe neimwe anhydroglucose unit mu cellulose, iyo inobatwa nealkali mu aqueous sodium hydroxide solution kuti iwane cellulose sodium munyu, yobva yapinda etherification reaction ne ethylene oxide kuti igadzire hydroxyethyl cellulose ether.Mukugadzira HEC, ethylene oxide haingogone kutsiva mapoka ehydroxyl pa cellulose, asi zvakare kupinda muketani yepolymerization reaction nemapoka ehydroxyl mumapoka akatsiviwa.