Hauv cov tshuaj pleev ib ce, muaj ntau yam tshuaj uas tsis muaj xim thiab tsis muaj ntxhiab, tab sis muaj ob peb yam tsis muaj tshuaj lom. Hnub no, kuv yuav qhia rau koj, hydroxyethyl cellulose, uas yog ib yam khoom siv ntau hauv ntau cov tshuaj pleev ib ce lossis cov khoom siv niaj hnub.
Hydroxyethyl Cellulose [Hydroxyethyl Cellulose]
Kuj hu ua (HEC) yog cov khoom dawb lossis daj ntseg, tsis muaj ntxhiab, tsis muaj tshuaj lom fibrous lossis hmoov khoom. Vim tias HEC muaj cov khoom zoo ntawm thickening, suspending, dispersing, emulsifying, bonding, film-forming, tiv thaiv noo noo thiab muab kev tiv thaiv colloid, nws tau siv dav hauv kev kho mob thiab kev siv tshuaj pleev ib ce.
Cov yam ntxwv ntawm cov khoom
1.HEC yaj tau hauv dej kub lossis dej txias, thiab tsis ua rau kub lossis npau, ua rau nws muaj ntau yam solubility thiab viscosity, nrog rau cov gelation tsis yog thermal;
2. Tus non-ionic nws tus kheej tuaj yeem nyob ua ke nrog ntau yam ntawm lwm cov polymers uas yaj hauv dej, surfactants thiab ntsev, thiab yog ib qho khoom siv colloidal thickener zoo heev uas muaj cov tshuaj dielectric siab;
3. Lub peev xwm khaws dej tau ob npaug ntawm methyl cellulose, thiab nws muaj kev tswj hwm dej zoo dua;
4. Piv nrog rau cov methyl cellulose thiab hydroxypropyl methyl cellulose uas tau lees paub, lub peev xwm ntawm HEC yog qhov phem tshaj plaws, tab sis cov colloid tiv thaiv muaj peev xwm muaj zog tshaj plaws.
lub luag haujlwm hauv kev pleev ib ce
Qhov hnyav molecular ntawm cov tshuaj pleev ib ce, qhov ceev ntawm cov khoom sib xyaw ntuj, cov khoom sib xyaw dag thiab lwm yam khoom sib txawv, yog li nws yog qhov tsim nyog ntxiv cov neeg sawv cev yaj kom ua rau tag nrho cov khoom xyaw ua lub luag haujlwm zoo tshaj plaws. Cov khoom solubility thiab viscosity ntawm hydroxyethyl cellulose ua lub luag haujlwm tag nrho, thiab tswj qhov sib npaug, yog li cov duab qub ntawm cov tshuaj pleev ib ce tuaj yeem khaws cia rau hauv lub caij txias thiab kub hloov pauv. Tsis tas li ntawd, nws muaj cov khoom moisturizing thiab yog ib qho tshwm sim hauv cov tshuaj pleev ib ce ntawm cov khoom moisturizing. Hauv particular, lub ntsej muag, toners, thiab lwm yam yog yuav luag tag nrho ntxiv.
cov teebmeem sab nraud
Hydroxyethyl cellulose siv rau hauv cov tshuaj pleev ib ce yeej tsis muaj tshuaj lom thaum siv cov tshuaj softeners, thickeners, thiab lwm yam. Thiab nws raug suav hais tias yog tus lej 1 kev nyab xeeb ib puag ncig los ntawm EWG.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-16-2022