Hydroxyethyl cellulose yog cov dej tsis-ionic-soluble polymer ua los ntawm cellulose, lub ntuj muaj cov duab, los ntawm cov txheej txheem tshuaj lom neeg. Nws yog cov xim dawb lossis daj, tsis muaj zog thiab cov dej tsis muaj zog, uas tuaj yeem ua rau dej txias thiab dej kub, thiab ua rau muaj kev cuam tshuam rau qhov kub. Feem ntau, nws yog insoluble nyob rau hauv feem ntau cov kuab tshuaj emolic. Nws yog siv raws li cov tuab thiab tawv nqaij hauv cov xim looj. Nws yog ib qho yooj yim rau tawg hauv dej txias nrog pH tus nqi tsawg dua lossis sib npaug rau agglomerate hauv kev siv ua ntej, lossis cov kua qaub tsis muaj zog lossis cov organic yog ua rau slurry , thiab nws kuj tseem tuaj yeem sib xyaw nrog lwm cov pob zeb cov khoom xyaw ua ke tau sib xyaw ua ke.
Cov yam ntxwv ntawm hydroxyethyl cellulose:
HEC yog soluble nyob rau hauv dej kub lossis dej txias, thiab tsis nag paus ntawm qhov kub lossis rhaub, uas ua rau nws muaj ntau yam ntawm solubility, thiab tsis yog-thermal gelation.
Nws tuaj yeem ua si nrog ntau yam ntawm lwm cov dej-soluble polymers, solfactants, thiab yog ntsev rau cov kev daws teeb meem muaj cov kev daws teeb meem zoo electrolytes.
Lub peev xwm kav dej ua haujlwm yog ob zaug kom siab npaum li ntawm methyl cellulose, thiab nws tau ntws zoo dua ntws cov cai.
Piv nrog lees paub methyl cellulose thiab hydroxypropyl cellulose, lub zog impersing ntawm HEC yog qhov phem tshaj, tab sis kev tiv thaiv kev tiv thaiv kev muaj peev xwm yog qhov muaj zog tshaj.
Kev tsim kho zoo heev; Nws muaj qhov zoo ntawm kev ua haujlwm-txuag, tsis yooj yim txw tov, tiv thaiv kev tiv thaiv zoo, thiab lwm yam.
Kev sib raug zoo zoo nrog ntau yam surfactants thiab tshuaj txuag tau siv hauv cov xim looj.
Qhov cia viscosity yog ruaj khov, uas tuaj yeem tiv thaiv cov dav dav hydrotyl cellulose los ntawm lowx xim thaum lub sij hawm decomposition ntawm enzymes.
Lub Sijhawm Post: Tsib Hlis-25-2023