Hydroxyethyl Methyl Cellulose (HEMC)

Hydroxyethyl methyl selulose (HEMC) ni polymer yamazi yamazi akomoka kuri selile. Nibintu bidafite ionic, bidafite uburozi, kandi ntibishobora gutwikwa bikoreshwa cyane mubikorwa bitandukanye byinganda n’abaguzi. HEMC ihabwa agaciro kubushobozi bwayo bwo gukora nkibibyimbye, bihuza, hamwe na rheologiya ihindura ibicuruzwa byinshi.

HEMC ikorwa muguhindura imiti ya selile ya selile. Muri ubu buryo, fibre ya selile ikoreshwa na sodium hydroxide kugirango ikore alkali selile. Oxide ya Ethylene noneho yongewe kumvange, ifata na selile kugirango ikore hydroxyethyl selile. Hanyuma, methyl chloride yongewe kumvange yo gukora HEMC.

HEMC ikoreshwa muburyo butandukanye bwo gusaba, harimo ubwubatsi, ibiryo, kwita ku muntu, hamwe na farumasi. Bumwe mu buryo bwibanze bukoreshwa na HEMC nubwubatsi, aho bukoreshwa mubicuruzwa bitandukanye nka minisiteri ivanze yumye, putties, amatafari, hamwe nibicuruzwa bya gypsumu.

Mu kuvanga ibyuma byumye, HEMC ikoreshwa nkumubyimba, guhuza, hamwe nogukoresha amazi. Ifasha kunoza imikorere ya minisiteri kandi igufasha kugenzura neza ibirimo amazi. Ibi nibyingenzi kuko ibirimo amazi ya minisiteri bigira ingaruka kumurongo, gushiraho igihe, nimbaraga zanyuma.

Muri putties, HEMC ikoreshwa cyane cyane kubyimbye no guhuza. Kwiyongera kwa HEMC kuvanga bifasha kunoza imikorere ya putty kandi bigufasha kugenzura neza ibirimo amazi. HEMC ifasha kandi gukumira gutandukanya ibice bitandukanye muburyo bwo gushira, kandi bitezimbere guhuza ibishishwa kuri substrate.

Mu gufatira amabati, HEMC ikoreshwa cyane cyane nk'umukozi wo gufata amazi. Kwiyongera kwa HEMC kuvanga bifasha kunoza imikorere yumuti kandi bigufasha kugenzura neza ibirimo amazi. HEMC ifasha kandi gukumira gutandukanya ibice bitandukanye muburyo bwo gufatira hamwe, kandi bigateza imbere gufatira kumutwe.

Mubicuruzwa bya gypsumu, HEMC ikoreshwa nkumubyimba, guhuza, hamwe nogukoresha amazi. Ifasha kunoza imikorere yibicuruzwa bya gypsumu kandi bigufasha kugenzura neza ibirimo amazi. Ibi nibyingenzi kuberako amazi yibicuruzwa bya gypsumu agira ingaruka kumwanya wacyo n'imbaraga zanyuma.

Mu bicuruzwa byibiribwa, HEMC isanzwe ikoreshwa nkibyimbye, stabilisateur, na emulifier. Ikoreshwa muburyo bwinshi butandukanye bwibiribwa, harimo isosi, imyambarire, n’ibikomoka ku mata. HEMC ihabwa agaciro kubushobozi bwayo bwo kunoza imiterere no gutuza kwibi bicuruzwa.

Mubicuruzwa byita kumuntu ku giti cye, HEMC ikoreshwa nkibyimbye, stabilisateur, na emulifier. Ikoreshwa muburyo butandukanye bwibicuruzwa byita kumuntu, harimo shampo, kondereti, hamwe namavuta yo kwisiga. HEMC ihabwa agaciro kubushobozi bwayo bwo kuzamura imiterere no gutuza kwibi bicuruzwa.

Muri farumasi, HEMC ikoreshwa nka binder na disintegrant. Ikoreshwa muburyo bwa tablet kugirango itezimbere imbaraga za mashini ya tablet ndetse no gufasha mugusenyuka kwa tablet no gusenyuka mumubiri.