Hauv cov tshuaj pleev ib ce, muaj ntau yam tsis muaj xim thiab tsw ntxhiab, tab sis ob peb yam tsis muaj tshuaj lom. Niaj hnub no, kuv yuav qhia rau koj, hydroxyethyl cellulose, uas yog heev muaj nyob rau hauv ntau yam tshuaj pleev ib ce los yog txhua txhua hnub.
Hydroxyethyl Cellulose 【Hydroxyethyl Cellulose】
Kuj tseem hu ua (HEC) yog xim dawb lossis daj daj, tsis muaj ntxhiab, tsis muaj kuab lom los yog hmoov hmoov. Vim HEC muaj cov khoom zoo ntawm thickening, suspending, dispersing, emulsifying, bonding, film-forming, tiv thaiv ya raws thiab muab kev tiv thaiv colloid, nws tau siv dav hauv kev kho mob thiab tshuaj pleev ib ce.
Khoom nta
1.HEC yog soluble nyob rau hauv dej kub los yog txias, thiab tsis precipitate ntawm kub los yog boiling, ua rau nws muaj ib tug ntau yam ntawm solubility thiab viscosity yam ntxwv, raws li zoo raws li tsis-thermal gelation;
2. Cov uas tsis yog-ionic nws tus kheej tuaj yeem ua ke nrog ntau yam ntawm lwm cov dej-soluble polymers, surfactants thiab ntsev, thiab yog ib qho zoo heev colloidal thickener uas muaj high-concentration dielectric 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 ntawm methyl cellulose thiab hydroxypropyl methyl cellulose, lub peev xwm dispersing ntawm HEC yog qhov phem tshaj plaws, tab sis kev tiv thaiv colloid muaj peev xwm muaj zog tshaj plaws.
lub luag haujlwm hauv tshuaj pleev ib ce
Qhov hnyav molecular ntawm cov tshuaj pleev ib ce, qhov ntom ntawm cov khoom siv ntuj tsim, cov khoom siv dag zog thiab lwm cov ntsiab lus sib txawv, yog li nws yog ib qho tsim nyog yuav tsum tau ntxiv cov tshuaj tua kab mob los ua kom tag nrho cov khoom xyaw ua lub luag haujlwm zoo tshaj plaws. Lub solubility thiab viscosity ntawm hydroxyethyl cellulose ua lub luag haujlwm tag nrho, thiab tswj kom muaj kev sib npaug, kom cov khoom qub ntawm cov tshuaj pleev ib ce tuaj yeem khaws cia nyob rau hauv lub caij nyoog hloov ntawm txias thiab kub. Tsis tas li ntawd, nws muaj cov khoom moisturizing thiab muaj nyob rau hauv cov tshuaj pleev ib ce ntawm cov khoom moisturizing. Tshwj xeeb, qhov ncauj qhov ntswg, toners, thiab lwm yam yog yuav luag tag nrho ntxiv.
kev mob tshwm sim
Hydroxyethyl cellulose siv hauv cov tshuaj pleev ib ce yog qhov tsis muaj tshuaj lom thaum siv softeners, thickeners, thiab lwm yam. Thiab nws raug suav tias yog No. 1 ib puag ncig kev nyab xeeb khoom los ntawm EWG.
Post lub sij hawm: Nov-16-2022