Ukuqina kwe-hydroxyethyl cellulose

I-Hydroxyethyl cellulose (HEC) iyi-polymer engeyona i-ionic, encibilikayo emanzini esetshenziswa kabanzi njengesithambisi, isiqinisekisi, kanye nesihlanganisi ezimbonini ezahlukahlukene, okuhlanganisa nemithi, izimonyo, kanye nokwakha. I-viscosity yayo idlala indima ebalulekile ekunqumeni ukusebenza kwayo kulezi zinhlelo zokusebenza.

Ukuqina kwe-HEC kunqunywa yizici eziningana, okuhlanganisa izinga layo lokushintsha (DS), isisindo sama-molecule, ukuhlushwa, kanye ne-pH. Izinga lokushintsha libhekisela enanini lamaqembu e-hydroxyethyl afakwe ku-molecule ye-cellulose, kuyilapho isisindo sama-molecule sibhekisela kusayizi wamaketanga e-polymer. Ukuhlushwa kwe-HEC esixazululweni nakho kuthinta ukuqina kwayo, okuholela ekuqineni okuphezulu. I-pH yesisombululo ingaba nomthelela ekuqineni, kanti amanani aphezulu e-pH ngokuvamile aholela ekuqineni okuphansi.

I-viscosity ye-HEC ingalinganiswa kusetshenziswa i-viscometer, elinganisa ukumelana koketshezi ukugeleza. Izinhlobo ezahlukene zama-viscometer zingasetshenziswa, kufaka phakathi ama-viscometer ajikelezayo kanye nama-viscometer e-capillary, kuye ngokusetshenziswa okuthile kanye nobubanzi be-viscosity obuthakaselwayo.

Ngokuvamile, i-HIC ephezulu yokuchama iyathandwa lapho kusetshenziswe khona lapho ukuqina nokuzinza kubalulekile, njengasezintweni zokwenza imithi, izimonyo, kanye nemikhiqizo yokunakekela umuntu siqu. Isibonelo, i-HIC ephezulu yokuchama ivame ukusetshenziswa kuma-shampoo nama-conditioner ukuthuthukisa ukuthungwa nokusebenza kwawo, kanye nama-cream nama-lotion ukuze kunikezwe umuzwa obushelelezi nokunethezeka.

Embonini yokwakha, i-HEC isetshenziswa njengesithako sokujiya kanye ne-ejenti yokugcina amanzi emikhiqizweni esekelwe kusimende, njenge-mortars, grouts, kanye nekhonkrithi. Ukuqina kwe-HEC kulezi zicelo kubalulekile ekufezeni ukusebenza okufiselekayo, ukunamathela, kanye nokuvumelana komkhiqizo wokugcina.

I-viscosity ye-HEC ingashintshwa ngezindlela ezahlukahlukene zamakhemikhali nezomzimba, okuhlanganisa ukuxhumanisa, i-acid hydrolysis, kanye nokuxubana namanye ama-polymer. Lokhu kuguqulwa kungashintsha izakhiwo ze-HEC futhi kuholele ekusebenzeni okuthuthukisiwe ezinhlelweni ezithile.

Ngamafuphi, i-viscosity ye-HEC iyisici esibalulekile ekunqumeni ukusebenza kwayo ezinhlotsheni ezahlukene zokusebenza. Izinga lokushintshaniswa, isisindo sama-molecule, ukuhlushwa, kanye ne-pH konke kudlala indima ekunqumeni i-viscosity yayo, engalinganiswa kusetshenziswa i-viscometer. Izimboni ezahlukene kanye nezicelo zingadinga amazinga ahlukene e-viscosity, futhi kungenziwa izinguquko ku-HEC ukuze kuthuthukiswe ukusebenza kwayo ezinhlotsheni ezithile zokusebenza.