Ni ubuhe buryo bubira hydroxyethyl selulose?

Hydroxyethyl Cellulose (HEC) ni polymer idafite amazi ya elegitoronike ikoreshwa cyane mu gutwikira, kwisiga, ubuvuzi, ibiryo, gukora impapuro, gucukura amavuta no mu zindi nganda. Nibintu bya selile ya ether yabonetse hamwe na etherification ya selile, aho hydroxyethyl isimbuza igice cyamatsinda ya hydroxyl ya selile. Imiterere yumubiri na chimique ya hydroxyethyl selulose ituma iba kimwe mubintu byingenzi bigize umubyimba, imiti ya gelling, emulisiferi na stabilisateur.

Ingingo yo guteka ya hydroxyethyl selulose
Hydroxyethyl selulose ni polymer muremure cyane ifite uburemere bunini bwa molekile, kandi aho itetse ntabwo byoroshye kumenya nkibyingenzi bito. Mubikorwa bifatika, ibikoresho bya molekile ndende nka hydroxyethyl selulose ntabwo bifite aho bihurira. Impamvu nuko ibintu nkibi bizangirika mugihe cyo gushyushya, aho guhinduka biturutse kumazi ukajya muri gaze binyuze mumihindagurikire yicyiciro nkibintu bito bito bya molekile. Kubwibyo, igitekerezo cya "point de point" ya hydroxyethyl selulose ntabwo ikoreshwa.

Mubisanzwe, iyo hydroxyethyl selulose ishyutswe mubushyuhe bwinshi, izabanza gushonga mumazi cyangwa ibimera kama kugirango ibe igisubizo cya colloidal, hanyuma mubushyuhe bwo hejuru, urunigi rwa polymer ruzatangira kumeneka kandi amaherezo rushobora kubora, kurekura molekile nto nkamazi, dioxyde de carbone nibindi bintu bihindagurika bitanyuze muburyo busanzwe bwo guteka. Kubwibyo, hydroxyethyl selulose ntabwo ifite aho itetse neza, ahubwo ni ubushyuhe bwangirika, butandukanye nuburemere bwa molekile hamwe nubunini bwo gusimbuza. Muri rusange, ubushyuhe bwumuriro wa hydroxyethyl selulose mubusanzwe buri hejuru ya 200 ° C.

Ubushyuhe bwa hydroxyethyl selile
Hydroxyethyl selulose ifite imiti ihamye yubushyuhe bwicyumba, irashobora kwihanganira urugero runaka rwa aside hamwe n’ibidukikije bya alkali, kandi ikagira ubushyuhe runaka. Ariko, mugihe ubushyuhe buri hejuru cyane cyane mugihe habuze umusemburo cyangwa izindi stabilisateur, iminyururu ya polymer izatangira gucika kubera ibikorwa byubushyuhe. Ubu buryo bwo kubora bwumuriro ntabwo buherekejwe no gutekwa kugaragara, ahubwo buhoro buhoro gucika urunigi no kubura umwuma, kurekura ibintu bihindagurika hanyuma amaherezo bigasiga ibicuruzwa bya karubone.

Mu nganda zikoreshwa mu nganda, mu rwego rwo kwirinda kubora biterwa n'ubushyuhe bwinshi, hydroxyethyl selulose ntabwo ihura n’ibidukikije birenze ubushyuhe bwabyo. Ndetse no mubushyuhe bwo hejuru bukoreshwa (nko gukoresha amavuta yo gucukura amavuta ya peteroli), hydroxyethyl selulose ikoreshwa kenshi hamwe nibindi bikoresho kugirango izamure ubushyuhe bwayo.

Gukoresha hydroxyethyl selile
Nubwo hydroxyethyl selulose idafite aho itetse neza, gukomera kwayo no kubyimba bituma ikoreshwa cyane munganda nyinshi. Urugero:

Inganda zitwikiriye: hydroxyethyl selulose irashobora gukoreshwa nkibyimbye kugirango ifashe guhindura rheologiya yimyenda, kwirinda imvura no kunoza urwego no gutuza.

Amavuta yo kwisiga hamwe nu miti ya buri munsi: Nibintu byingenzi mubikoresho byinshi, ibikoresho byo kwita ku ruhu, shampo hamwe nu menyo wamenyo, bishobora guha ibicuruzwa ububobere bukwiye, ubuhehere kandi butajegajega.

Inganda zikoreshwa mu bya farumasi: Mu myiteguro y’imiti, hydroxyethyl selulose ikoreshwa kenshi mugukora ibinini bisohora-bikomeza kugirango bigabanye umuvuduko w’ibiyobyabwenge.

Inganda zibiribwa: Nkibyimbye, stabilisateur na emulisiferi, hydroxyethyl selulose nayo ikoreshwa mubiribwa, cyane cyane muri ice cream, jelly na sosi.

Gucukura amavuta: Mu gucukura peteroli, hydroxyethyl selulose nigice cyingenzi cyamazi yo gucukura, ashobora kongera ubwiza bwamazi, guhagarika urukuta rwiriba no kugabanya gutakaza ibyondo.

Nibikoresho bya polymer, hydroxyethyl selulose ntabwo ifite aho itetse neza kuko ibora kubushyuhe bwinshi aho kuba ibintu bisanzwe. Ubushyuhe bwacyo bwo kubora ubusanzwe buri hejuru ya 200 ° C, bitewe nuburemere bwa molekile hamwe nintera yo gusimburwa. Nubwo bimeze bityo ariko, hydroxyethyl selulose ikoreshwa cyane mubitambaro, kwisiga, ubuvuzi, ibiryo na peteroli kubera kubyimbye kwinshi, kubyimba, kumera no gutuza. Muri iyi porogaramu, mubisanzwe birindwa guhura nubushyuhe burenze urugero kugirango imikorere yayo ihamye.