Niki selile ya ether ikoreshwa kuri？

Cellulose etherbizongerera igihe cyo gushiraho sima paste cyangwa net ya minisiteri, gutinza sima hydration kinetics, bifite akamaro ko kunoza igihe cyo gukora cyibikoresho fatizo bya sima, kunoza ihame no gutemba kwa beto nyuma yo gutakaza, ariko kandi birashobora kudindiza iterambere ryubwubatsi, cyane cyane mubihe byubushyuhe buke bwibidukikije kugirango hakoreshwe minisiteri na beto.

Mubisanzwe, hejuru yibiri muri selile ya ether, nigihe kinini cyo gushiraho sima ya sima na minisiteri, kandi bikagaragara cyane gutinda kwa hydration dinamike. Ether ya selulose irashobora gutinza hydrata yingenzi ya clinker minerval fase tricalcium aluminate (C3A) na silikatike ya tricalcium (C3S) muri sima, ariko ingaruka kuri kinetic ya hydratique ntabwo ari imwe. Cellulose ether igabanya cyane cyane reaction ya C3S mugice cyihuta, mugihe kuri sisitemu ya C3A-Caso4, byongerera igihe cyo kwinjiza.

Ubundi bushakashatsi bwakozwe bwerekanye ko ether ya selile ishobora kubuza iseswa rya C3A na C3S, bigatinda korohereza kalisiyumu ya calcium aluminate na hydroxide ya calcium, kandi bikagabanya nucleation niterambere ryikura rya CSH hejuru yuduce twa C3S, ariko ntibyagize ingaruka nke kuri kristu ya ettringite. Weyer n'abandi. basanze urwego rwo gusimbuza DS aricyo kintu cyingenzi cyagize ingaruka kuri hydrata ya sima, kandi DS ntoya, niko byagaragaye ko gutinda kwa sima byatinze. Kuburyo bwa selulose ether itinda sima hydration.

Sliva n'abandi. yizeraga ko selile ya ether yongereye ubukana bwumuti wa pore kandi ikabuza umuvuduko w umuvuduko wa ion, bityo gutinda kwa sima. Ariko, Pourchez n'abandi. wasanze isano iri hagati ya selulose ether yatinze sima hydrata na ciment slurry viscosity ntabwo yagaragaye. Schmitz n'abandi. wasanze ubwiza bwa selulose ether ntacyo bwagize kuri hydration kinetics ya sima.

Pourchez yasanze kandi ether ya selulose ihagaze neza mugihe cya alkaline kandi itinda rya sima ryatinze ntirishobora guterwa no kubora kwaselile ether. Adsorption irashobora kuba impanvu nyayo selulose ether itinza hydrata ya sima, inyongeramusaruro nyinshi zizajya zandikwa kubice bya sima nibicuruzwa biva mu mazi, bikarinda isenyuka rya sima hamwe no gutondekanya ibicuruzwa biva mu mazi, bityo bikadindiza amazi hamwe na sima. Pourchcz n'abandi. wasanze imbaraga za adsorption yibicuruzwa bitanga hydrata na selile ya ether, niko bigaragara gutinda.

Muri rusange abantu bemeza ko molekile ya selulose ya ether iba yamamaye cyane kubicuruzwa bitanga amazi kandi ntibikunze kwerekanwa kumyuka yambere ya clinker.