Inkomoko karemano ya hydroxyethyl selulose niyihe?

Hydroxyethyl selulose (HEC) nikintu kitari ionic amazi-elegitoronike ya polymer ikoreshwa cyane mumavuta yo kwisiga, imiti, amarangi, impuzu, ubwubatsi nizindi nzego. Ifite umubyimba mwiza, guhagarikwa, gutatanya, emulisile, gukora firime, gufata amazi nindi mitungo, bityo ikaba yarabaye umukozi wingenzi mubikorwa byinganda nyinshi. Nyamara, hydroxyethyl selulose ntabwo iboneka mubintu bisanzwe, ahubwo iboneka muguhindura imiti ya selile. Kugirango bigerweho, kugirango twumve isoko karemano ya hydroxyethyl selulose, dukeneye mbere na mbere gusobanukirwa inkomoko n'imiterere ya selile.

Inkomoko karemano ya selile
Cellulose ni imwe mu miterere ya polimeri nyinshi ku isi kandi igaragara cyane mu nkuta z’utugingo ngengabuzima, cyane cyane mu biti by’ibiti, ipamba, flax n’ibindi binyabuzima. Nibintu byingenzi muburyo bwimiterere yibihingwa kandi bitanga imbaraga zumukanishi no gutuza. Igice cyibanze cya selile ni molekile ya glucose, ihujwe na β-1,4-glycosideque ihuza urwego rurerure. Nkibikoresho bisanzwe bya polymer, selile ifite ibintu byiza byumubiri nubumara, bigatuma iba ibikoresho byingenzi kubibikomokaho bitandukanye.

Gutegura hydroxyethyl selulose
Nubwo selile ubwayo ifite ibintu byinshi byiza, ikoreshwa ryayo rigarukira kurwego runaka. Impamvu nyamukuru nuko selile ifite ubushobozi buke, cyane cyane ubushobozi buke mumazi. Mu rwego rwo kunoza uyu mutungo, abahanga mu bya shimi bahindura selile kugirango bategure ibikomoka kuri selile. Hydroxyethyl selulose ni amazi ya elegitoronike ya selile yabonetse na ethoxylating selulose naturel binyuze mumiti ya reaction.

Muburyo bwihariye bwo kwitegura, selile isanzwe ibanza gushonga mumuti wa alkali, hanyuma okiside ya Ethylene ikongerwa muri sisitemu yo kubyitwaramo. Ethoxylation reaction ya Ethylene oxyde na hydroxyl mumatsinda ya selile ibaho kubyara hydroxyethyl selile. Iri hinduka ryongera hydrophilicité yiminyururu ya selile, bityo igatezimbere imbaraga zayo hamwe nubwiza bwamazi mumazi.

Inkomoko yibanze
Ibikoresho fatizo byibanze byo gutegura hydroxyethyl selulose ni selile, naho amasoko karemano ya selile arimo:

Igiti: Ibigize selile mu giti ni byinshi, cyane cyane mu biti binini kandi bifite amababi yagutse, aho selile ishobora kugera kuri 40% -50%. Igiti nimwe mu nkomoko yingenzi ya selile mu nganda, cyane cyane mu gukora impapuro no gukora ibikomoka kuri selile.

Impamba: Fibre fibre igizwe na selile yuzuye, kandi selile iri muri pamba iri hejuru ya 90%. Bitewe nubuziranenge bwacyo, fibre ikoreshwa mugutegura ibikomoka kuri selile nziza.

Fibre yibimera nka flax na hemp: Izi fibre yibimera nazo zikungahaye kuri selile, kandi kubera ko utwo dusimba twibimera dusanzwe dufite imbaraga za mashini nyinshi, zifite kandi inyungu zimwe na zimwe zo gukuramo selile.

Imyanda iva mu buhinzi: harimo ibyatsi, ibyatsi by ingano, ibyatsi byibigori, nibindi. .

Ahantu hashyirwa hydroxyethyl selulose
Bitewe nimiterere yihariye ya hydroxyethyl selulose, ikoreshwa cyane mubice byinshi. Ibikurikira nibice byinshi byingenzi bikoreshwa:

Inganda zubaka: Hydroxyethyl selulose ikoreshwa cyane mubikoresho byubwubatsi nkibikoresho byongera amazi kandi bigumana amazi, cyane cyane muri sima ya sima, gypsumu, ifu ya putty nibindi bikoresho, bishobora kuzamura neza imyubakire n’amazi agumana ibikoresho.

Inganda zikora imiti ya buri munsi: Ibikoresho byo kwisiga, ibicuruzwa byita kuruhu, shampo nibindi bicuruzwa bivura imiti ya buri munsi, hydroxyethyl selulose ikoreshwa nkibyimbye kandi bigahindura kugirango ibicuruzwa byiyumve neza kandi bihamye.

Irangi hamwe nigitambaro: Mu nganda zitwikiriye, hydroxyethyl selulose ikoreshwa nkumubyimba wimbaraga na rheologiya kugirango utezimbere imikorere yikingira kandi wirinde kugabanuka.

Umwanya wa farumasi: Mu myiteguro ya farumasi, hydroxyethyl selulose irashobora gukoreshwa nkigikoresho gihuza, kibyimbye kandi gihagarika ibinini kugirango ibinini bisohore kandi bihamye.

Nubwo hydroxyethyl selulose atari ibintu bisanzwe bibaho, ibikoresho fatizo byibanze, selile, biboneka cyane mubimera muri kamere. Binyuze mu guhindura imiti, selile naturel irashobora guhinduka hydroxyethyl selulose hamwe nibikorwa byiza kandi bigakoreshwa mubikorwa bitandukanye. Ibimera karemano nkibiti, ipamba, flax, nibindi bitanga isoko yibikoresho fatizo byo gukora hydroxyethyl selulose. Hamwe n’iterambere rya siyanse n’ikoranabuhanga ndetse no kwiyongera kw’inganda zikenerwa mu nganda, gahunda yo gukora hydroxyethyl selulose nayo ikomeje kunozwa, kandi biteganijwe ko izerekana agaciro kayo mu nzego nyinshi mu gihe kiri imbere.