Qhov tseem ceeb thiab kev siv ntawm hydroxyethyl cellulose

1. Cov yam ntxwv ntawm hydroxyethyl cellulose

Cov khoom no yog xim dawb lossis lub teeb daj daj thiab cov hmoov av yooj yim, 40 mesh sab cib ≥99%; muag muag kub: 135-140 ° C; pom meej ntom: 0.35-0.61g / ml; decomposition kub: 205-210 ° C; Kub li qeeb qeeb; kev sib zog ntsuas kub: 23 ° C; 6% ntawm 50% rh, 29% ntawm 84% rh.

Nws yog soluble nyob rau hauv ob qho dej txias thiab dej kub, thiab feem ntau insoluble nyob rau hauv feem ntau cov kuab tshuaj emolic. Lub viscosity hloov me ntsis nyob rau hauv cov nqi ntawm PH tus nqi 2-12, tab sis cov viscosity txo dhau qhov no.

2. Cov khoom tseem ceeb

Raws li cov tsis yog-ionic surfactant, hydroxyethyl cellulose muaj cov khoom siv ua kom tuab ntxiv, ua yeeb yaj kiab, dej tuav, dej tuav thiab muab kev tiv thaiv kev tiv thaiv kab mob:

1. HEC is soluble in hot water or cold water, and does not precipitate at high temperature or boiling, which makes it have a wide range of solubility, viscosity characteristics and non-thermal gelation.

2. Nws yog tsis-ionic thiab tuaj yeem ua ke nrog ntau yam ntawm lwm cov dej-soluble polymers, solfactants, thiab ntsev. Nws yog ib qho zoo tshaj plaws colloidal thickener rau cov kev txhim kho hluav taws xob hluav taws xob.

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4. Piv nrog lees paub methyl cellulose thiab hydroxypropyl cellulose, HEC muaj qhov muaj zog tshaj plaws, tab sis muaj zog tiv thaiv kev tiv thaiv muaj peev xwm.

3. Kev siv ntawm hydroxyethyl cellulose

Feem ntau siv raws li cov tshuaj tiv thaiv, cov nplaum, cov khoom siv, tshuaj ntsuab, cov ntsiav tshuaj, thiab kuj tuaj yeem siv ua cov khoom noj khoom haus stabilizer nyob rau hauv cov zaub mov.