1. Cov khoom ntawm hydroxyethyl cellulose
Cov khoom no yog dawb los yog lub teeb daj tsw thiab yooj yim ntws hmoov, 40 mesh sieve tus nqi ≥99%;softening kub: 135-140 ° C;pom tseeb ceev: 0.35-0.61g / ml;decomposition kub: 205-210 ° C;Kev kub ceev qeeb qeeb;Qhov kub thiab txias: 23 ° C;6% ntawm 50% rh, 29% ntawm 84% rh.
Nws yog soluble hauv dej txias thiab dej kub, thiab feem ntau insoluble nyob rau hauv feem ntau cov organic solvents.Lub viscosity hloov me ntsis hauv thaj tsam ntawm PH tus nqi 2-12, tab sis lub viscosity txo qis tshaj qhov ntau.
2. Cov khoom tseem ceeb
Raws li ib tug non-ionic surfactant,hydroxyethyl cellulosemuaj cov khoom nram qab no ntxiv rau thickening, suspending, binding, floating, film-forming, dispersing, dej tuav thiab muab kev tiv thaiv colloid:
1. HEC yog soluble nyob rau hauv dej kub los yog dej txias, thiab tsis precipitate ntawm kub los yog boiling, uas ua rau nws muaj ib tug ntau yam ntawm solubility, viscosity yam ntxwv thiab tsis-thermal gelation.
2. Nws yog non-ionic thiab tuaj yeem ua ke nrog ntau yam ntawm lwm cov dej-soluble polymers, surfactants, thiab ntsev.Nws yog ib qho zoo heev colloidal thickener rau high-concentration electrolyte daws.
3. Lub peev xwm tuav dej yog ob zaug siab dua li ntawm methyl cellulose, thiab nws muaj kev tswj xyuas zoo dua.
4. Piv nrog rau kev lees paub methyl cellulose thiab hydroxypropyl methyl cellulose, HEC muaj peev xwm dispersing phem tshaj plaws, tab sis muaj zog tiv thaiv colloid muaj peev xwm.
3. Kev siv hydroxyethyl cellulose
Feem ntau siv los ua thickeners, tiv thaiv tus neeg sawv cev, nplaum, stabilizers thiab additives rau kev npaj ntawm emulsions, jellies, tshuaj pleev, tshuaj pleev ib ce, qhov muag cleansers, suppositories thiab ntsiav tshuaj, thiab kuj siv raws li hydrophilic gels, skeleton cov ntaub ntawv, Nws yuav siv tau los npaj matrix- hom sustained-tso npaj, thiab tuaj yeem siv los ua kom ruaj khov hauv cov khoom noj.
Post lub sij hawm: Dec-27-2022