Ether ya selile, cyane cyane hydroxypropylmethylcellulose (HPMC) na methylhydroxyethylcellulose (MHEC), yakoreshejwe cyane nk'inyongeramusaruro y'ibikoresho bya sima mu bikorwa byo kubaka. Azwiho kubika amazi, ibyo bikoresho birashobora kuzamura imikorere, imvugo nimbaraga zububiko bwibikoresho bya sima. Nyamara, uruhare rwabo mumazi ya sima ntabwo buri gihe rusobanutse.
Amazi ya sima bivuga reaction yimiti hagati yamazi nibikoresho bya sima kugirango itange umusaruro wamazi nka calcium silicate hydrate (CSH) na hydroxide ya calcium (Ca (OH) 2). Iyi nzira ningirakamaro mugutezimbere imbaraga za beto nimbaraga ziramba.
Kwiyongera kwa selile ya selile kubikoresho bya simaitima birashobora kugira ingaruka nziza nibibi kuri hydration. Ku ruhande rumwe, imikorere yo gufata amazi ya selile ether irashobora guteza imbere sima kugirango ikomeze kubona amazi kugirango ikore, bityo byongere umuvuduko nintera ya hydration. Ibi bigabanya igihe cyo gushiraho, byihutisha iterambere ryiterambere kandi bitezimbere muri rusange ibintu bya beto.
Ether ya selile irashobora kandi gukora nka colloide ikingira kugirango ikusanyirize hamwe kandi ituze ibice bya sima. Ibi bivamo microstructure iringaniye kandi ihamye, irusheho kuzamura imashini kandi iramba ya beto.
Kurundi ruhande, gukoresha cyane selile ya selile birashobora kugira ingaruka mbi kumazi ya sima. Kuberako selile ya selile ari hydrophobique igice, irabuza kwinjiza amazi mubintu bya gell, bikaviramo gutinda cyangwa kutuzuye. Ibi bivamo kugabanuka kwimbaraga nigihe kirekire cya beto.
Niba intumbero ya selulose ether ari ndende cyane, izafata umwanya mubutaka bwa sima igomba kuzuzwa nuduce twa sima. Nkigisubizo, ibintu byose bikubiye muri slurry bizagabanuka, bivamo kugabanuka kwimikorere. Ether nyinshi ya selile irashobora kandi gukora nkinzitizi, ikabuza imikoranire hagati ya sima namazi, bikadindiza inzira yo kuhira.
Nibyingenzi kumenya umubare mwiza wa selile ether kugirango ukoreshe kunoza imiterere yibintu byashizwemo mugihe wirinze ingaruka mbi zose. Umubare uterwa nibintu byinshi, nkubwoko bwa selile ether, ibigize sima, igipimo cyamazi-sima hamwe nuburyo bwo gukiza.
Ethers ya selile, cyane cyane HPMC na MHEC, irashobora kugira ingaruka nziza kumazi ya sima, bitewe nubunini bwabo hamwe nibigize ibintu bya sima. Ingano ya selulose ether yakoreshejwe igomba gusuzumwa neza kugirango igere kumitungo wifuza utabangamiye imitungo ya beto. Hamwe nimikoreshereze ikwiye kandi itezimbere, ethers ya selile irashobora kugira uruhare mugutezimbere ibikoresho biramba, biramba kandi birambye.
Igihe cyo kohereza: Kanama-23-2023