Puas yog hydroxyethylcellulose nplaum?

Hydroxyethylcellulose (HEC)yog ib qho khoom siv polymer hauv ntau yam lag luam, suav nrog tshuaj, tshuaj pleev ib ce, thiab zaub mov. Nws cov khoom muaj peev xwm sib txawv nyob ntawm seb muaj ntau yam xws li concentration, molecular hnyav, thiab muaj lwm yam khoom xyaw. Thaum HEC nws tus kheej tsis yog nplaum nplaum, nws lub peev xwm los tsim cov gels lossis cov kev daws teeb meem tuaj yeem ua rau cov nplaum nplaum nyob rau hauv qee yam mob.

HEC yog cov dej tsis-ionic-soluble polymer muab los ntawm cellulose. Nws lub luag haujlwm tseem ceeb yog ua tus neeg sawv cev thickening, stabilizer, lossis zaj duab xis-yav dhau los hauv cov khoom lag luam xws li cov tshuaj zawv plaub hau thiab tshuaj pleev ib ce rau cov tshuaj formulations thiab khoom noj khoom haus. Nws cov qauv molecular ua rau nws cuam tshuam nrog cov dej molecules, tsim hydrogen bonds thiab tsim cov kua nplaum los yog gels.

Qhov nplaum ntawm HEC-muaj cov khoom tuaj yeem cuam tshuam los ntawm ntau yam:

Kev Cuam Tshuam: Kev siab dua ntawm HEC hauv ib qho kev tsim tuaj yeem ua rau muaj viscosity ntau dua thiab muaj peev xwm ua kom zoo dua qub. Formulators ua tib zoo kho qhov concentration ntawm HEC kom ua tiav qhov xav tau sib xws yam tsis ua rau cov khoom nplaum dhau.
Kev sib tham nrog lwm cov khoom xyaw:HECtuaj yeem cuam tshuam nrog lwm yam hauv kev tsim, xws li surfactants lossis ntsev, uas tuaj yeem hloov kho nws cov khoom rheological. Nyob ntawm cov qauv tsim tshwj xeeb, cov kev sib cuam tshuam no tuaj yeem ua rau muaj kev nplaum.
Ib puag ncig tej yam kev mob: Yam xws li kub thiab av noo tuaj yeem cuam tshuam tus cwj pwm ntawm HEC-muaj cov khoom. Hauv qhov chaw ntub dej, piv txwv li, HEC gels tuaj yeem khaws cov dej noo ntau dua los ntawm huab cua, uas tuaj yeem ua rau cov nplaum nplaum.
Daim ntawv thov txheej txheem: Cov txheej txheem ntawm daim ntawv thov kuj tuaj yeem cuam tshuam qhov kev nkag siab ntawm kev nplaum. Piv txwv li, ib yam khoom uas muaj HEC yuav hnov ​​​​ntxhiab nplaum thaum ua ntawv thov sib npaug, tab sis yog tias cov khoom siv ntau dhau ntawm daim tawv nqaij lossis plaub hau, nws yuav hnov ​​​​tacky.
Molecular Luj: Qhov hnyav molecular ntawm HEC tuaj yeem cuam tshuam nws lub peev xwm thickening thiab kev ntxhib los mos ntawm cov khoom kawg. Kev hnyav dua molecular HEC tuaj yeem ua rau muaj kev daws teeb meem ntau dua, uas tuaj yeem ua rau muaj kev nplaum.
Nyob rau hauv cov tshuaj pleev ib ce, HEC feem ntau yog siv los muab ib tug smooth, creamy kev ntxhib los mos rau cov tshuaj pleev ib ce thiab cream yam tsis muaj ib tug nplaum residue. Txawm li cas los xij, yog tias tsis tsim los yog siv tau zoo, cov khoom uas muaj HEC tuaj yeem hnov ​​​​tacky lossis nplaum rau ntawm daim tawv nqaij lossis plaub hau.

thaumhydroxyethyl cellulosenws tus kheej tsis yog nplaum nplaum, nws siv hauv formulations tuaj yeem ua rau cov khoom sib txawv ntawm cov nplaum nplaum nyob ntawm cov qauv tsim thiab cov qauv siv. Formulators ua tib zoo sib npaug cov yam ntxwv no kom ua tiav qhov xav tau kev ntxhib los mos thiab kev ua tau zoo hauv cov khoom kawg.