I-Hydroxyethyl Methyl Cellulose (HEMC)

IHydroxyethyl methyl cellulose (HEMC) iyi-polymer encibilika emanzini etholakala ku-cellulose. Kuyinhlanganisela engeyona i-ionic, engenabuthi, futhi engashi esetshenziswa kakhulu ezinhlelweni ezahlukahlukene zezimboni nezabathengi. I-HEMC yaziswa kakhulu ngekhono layo lokusebenza njenge-thickener, binder, ne-rheology modifier emikhiqizweni eminingi.

I-HEMC yenziwa ngokushintsha amakhemikhali imicu yemvelo ye-cellulose. Kule nqubo, imicu ye-cellulose iphathwa nge-sodium hydroxide ukwenza i-alkali cellulose. I-ethylene oxide ibe isifakwa engxubeni, ehlangana ne-cellulose yakhe i-hydroxyethyl cellulose. Ekugcineni, i-methyl chloride yengezwa engxubeni ukuze kwakhiwe i-HEMC.

I-HEMC isetshenziswa ezinhlobonhlobo zezinhlelo zokusebenza, okuhlanganisa ukwakhiwa, ukudla, ukunakekelwa komuntu siqu, kanye nemithi. Enye yezindlela eziyinhloko ezisetshenziswa ngayo i-HEMC ekwakheni, lapho isetshenziswa khona emikhiqizweni ehlukahlukene efana nodaka lwengxube eyomile, ama-putty, izinto zokunamathisela zamathayili, nemikhiqizo yegypsum.

Emasikeni okuxuba okomile, i-HEMC isetshenziswa njenge-thickener, binder, kanye ne-ejenti yokugcina amanzi. Kuyasiza ukwenza ngcono ukusebenza kodaka futhi kuvumela ukulawula okungcono okuqukethwe kwamanzi. Lokhu kubalulekile ngoba okuqukethwe kwamanzi odaka kuthinta ukuvumelana kwawo, isikhathi sokumisa, namandla okugcina.

Ku-putty, i-HEMC isetshenziswa ngokuyinhloko njenge-thickener ne-binder. Ukwengezwa kwe-HEMC ekuxubeni kusiza ukuthuthukisa ukusebenza kwe-putty futhi kuvumela ukulawula okungcono kokuqukethwe kwamanzi. I-HEMC isiza futhi ukuvimbela ukuhlukaniswa kwezingxenye ezihlukahlukene ekwakhiweni kwe-putty, futhi ithuthukisa ukunamathela kwe-putty kuma-substrates.

Ezinamathiselwe zamathayili, i-HEMC isetshenziswa ngokuyinhloko njenge-ejenti yokugcina amanzi. Ukwengezwa kwe-HEMC ekuxubeni kusiza ukuthuthukisa ukusebenza kwe-adhesive futhi kuvumela ukulawula okungcono kokuqukethwe kwamanzi. I-HEMC iphinde isize ukuvimbela ukuhlukaniswa kwezingxenye ezihlukahlukene ekwakhiweni kwe-adhesive, futhi ithuthukisa ukunamathela kwe-adhesive kuma-substrates.

Emikhiqizweni ye-gypsum, i-HEMC isetshenziswa njenge-thickener, binder, kanye ne-ejenti yokugcina amanzi. Kuyasiza ukuthuthukisa ukusebenza komkhiqizo we-gypsum futhi kuvumela ukulawula okungcono kokuqukethwe kwamanzi. Lokhu kubalulekile ngoba okuqukethwe kwamanzi omkhiqizo we-gypsum kuthinta isikhathi sawo sokusetha namandla okugcina.

Emikhiqizweni yokudla, i-HEMC ivamise ukusetshenziswa njenge-thickener, stabilizer, kanye ne-emulsifier. Isetshenziswa ezinhlotsheni eziningi zemikhiqizo yokudla, okuhlanganisa amasoso, okokugqoka kanye nemikhiqizo yobisi. I-HEMC ihlonishwa ngekhono layo lokuthuthukisa ukuthungwa nokuzinza kwale mikhiqizo.

Emikhiqizweni yokunakekelwa komuntu siqu, i-HEMC isetshenziswa njenge-thickener, stabilizer, kanye ne-emulsifier. Isetshenziswa ezinhlotsheni eziningi zemikhiqizo yokunakekelwa komuntu siqu, okuhlanganisa ama-shampoos, ama-conditioner, nama-lotions. I-HEMC ihlonishwa ngekhono layo lokuthuthukisa ukuthungwa nokuzinza kwale mikhiqizo.

Kwezemithi, i-HEMC isetshenziswa njenge-binder kanye ne-disintegrant. Isetshenziswa ekwenziweni kwethebhulethi ukuthuthukisa amandla okusebenza ethebhulethi futhi isize ekuhlakazweni nasekuhlakazweni kwethebhulethi emzimbeni.