Ni kangahe ubwiza bwa methyl selulose ether kuri gypsum mortar?

Ni kangahe ubwiza bwa methyl selulose ether kuri gypsum mortar?

Igisubizo: Viscosity nikintu cyingenzi mumikorere ya methyl selulose ether.

Muri rusange, uko ubukonje buri hejuru, niko ingaruka nziza yo gufata amazi ya gypsum. Nyamara, uko ubukonje buri hejuru, niko uburemere bwa molekuline ya methyl selulose ether, hamwe no kugabanuka gukwiranye nubushake bwayo bizagira ingaruka mbi kumbaraga no mubikorwa bya minisiteri. Iyo hejuru yubukonje, niko bigaragara ingaruka zo kubyimba kuri minisiteri, ariko ntabwo ihwanye neza. Iyo hejuru yubukonje, niko amabuye atose azaba menshi. Mugihe cyo kubaka, bigaragarira nko kwizirika kuri scraper no gufatira hejuru kuri substrate. Ariko ntabwo ari byiza kongera imbaraga zimiterere ya minisiteri yonyine. Mubyongeyeho, mugihe cyo kubaka, imikorere irwanya sag ya minisiteri itose ntabwo igaragara. Ibinyuranye na byo, bimwe mu biciriritse kandi bito ariko byahinduwe na methyl selulose ethers bifite imikorere myiza mugutezimbere imiterere yimiterere ya minisiteri.

Ni kangahe ubwiza bwa selile ether kuri minisiteri?

Igisubizo: Ubwiza nabwo ni indangagaciro yingenzi ya methyl selulose ether. MC ikoreshwa mu ifu yumye isabwa kuba ifu irimo amazi make, kandi ubwiza nabwo busaba 20% kugeza 60% byubunini buke butageze kuri 63m. Ubwiza bugira ingaruka kumyuka ya methyl selulose ether. Ubusanzwe MC isanzwe ni granular, byoroshye gutatanya no gushonga mumazi nta agglomeration, ariko igipimo cyo kuyasesa kiratinda cyane, ntabwo rero gikwiriye gukoreshwa mumashanyarazi yumye. Ibicuruzwa bimwe byo murugo birigaragaza, ntabwo byoroshye gutatanya no gushonga mumazi, kandi byoroshye guhuriza hamwe. Mu ifu yumye yumye, MC ikwirakwizwa mubikoresho bya sima nka agregate, kuzuza neza na sima, kandi ifu nziza ihagije irashobora kwirinda methyl selulose ether agglomeration mugihe ivanze namazi. Iyo MC yongewemo namazi yo gushonga agglomerates, biragoye cyane gutatanya no gushonga. Coarse MC ntabwo isesagura gusa, ahubwo igabanya imbaraga zaho za minisiteri. Iyo ifu yumye yumye ishyizwe ahantu hanini, umuvuduko wo gukiza wa minisiteri yaho uzagabanuka cyane, kandi ibice bizagaragara kubera ibihe bitandukanye byo gukira. Kuri minisiteri yatewe hamwe nubwubatsi bwa mashini, ibisabwa kubwiza ni byinshi kubera igihe gito cyo kuvanga.

Ubwiza bwa MC nabwo bugira ingaruka runaka kububiko bwamazi. Muri rusange, kuri methyl selulose ethers ifite ubwiza bumwe ariko bwiza butandukanye, kubwinshi bwiyongereye, nibyiza nibyiza ingaruka zo gufata amazi.

Nubuhe buryo bwo guhitamo selile?

Igisubizo: Ingano ya selulose ether ikoreshwa mubikorwa bitandukanye ishingiye ahanini kubikenewe kubika amazi. Birakwiriye ubwoko bwose bwa minisiteri. Ibikoresho byinjiza cyane bisaba ubwinshi bwa selile ya ether. Mortars hamwe nubunini buke bwo gukwirakwiza bityo ubuso bunini nabwo busaba ubwinshi bwa selile ya ether.

Ibisobanuro byahinduwe birashobora gutoranywa kubirwanya anti-sagging. Niba ihinduka ridahagije, ibinyamisogwe, mubisanzwe hydroxypropyl ya krahisi, birashobora kongerwaho kugirango wirinde kugabanuka.

Umubare wuzuye nubunini bwuzuza mubisobanuro bigomba gutoranywa kugirango bitange neza kandi bihamye.

Kuvanga gypsumu, yuzuza, ubwoko nubwinshi bwa selile ya selile nuburyo bwo gukoresha ibinyamisogwe bigomba guhuzwa nuburyo bukurikira:

Iyo minisiteri ivanze yumye yongewe kumazi runaka, umubare wongeyeho ushingiye kumubare wamazi, kandi amazi yose yarashizwemo utabanje gukurura ifu yumye hamwe nikigereranyo cyamazi-na paste. Niba ibintu bitandukanye bivanze muburyo bukwiye, noneho dushobora kubona minisiteri yoroshye hamwe nibisabwa bikwiye nyuma yo kuvanga.

Ni ubuhe buryo bwo kubaka gypsumu ukoresheje ibikoresho bigumana amazi?

Igisubizo: Kubaka ibikoresho byurukuta ahanini byubatswe, kandi byose bifite amazi akomeye. Nyamara, ibikoresho byubaka gypsumu bikoreshwa mukubaka urukuta byateguwe hongerwaho amazi kurukuta, kandi amazi yakirwa byoroshye nurukuta, bikaviramo kubura amazi akenewe kugirango hydrès ya gypsumu, bikaviramo ingorane zo kubaka plasta kandi bikagabanuka imbaraga zubusabane, bikavamo gucikamo, Ibibazo byubuziranenge nko gutobora no gukuramo. Kunoza amazi yo kubika ibikoresho byubaka gypsumu birashobora kuzamura ubwubatsi nimbaraga zo guhuza urukuta. Kubwibyo, ibikoresho byo kubika amazi byabaye kimwe mubintu byingenzi bivangwa na gypsumu.

Ibikoresho bikoreshwa cyane mu kubika amazi mu gihugu cyanjye ni carboxymethyl selulose na methyl selulose. Ibi bikoresho byombi bigumana amazi ni ether ikomoka kuri selile. Bose bafite ibikorwa byubuso, kandi hariho amatsinda ya hydrophilique na hydrophobique muri molekile zabo, zifite emulisifike, colloid ikingira hamwe nicyiciro gihamye. Bitewe n'ubukonje bwinshi bw'umuti wacyo w'amazi, iyo byongewe kuri minisiteri kugirango bigumane amazi menshi, birashobora gukumira neza kwinjiza amazi cyane na substrate (nk'amatafari, beto, nibindi) kandi bikagabanya umuvuduko wo guhumeka y'amazi, bityo bikagira uruhare mu gufata amazi. Methyl selulose ni ikintu cyiza cya gypsumu ihuza gufata amazi, kubyimba, gukomera no kubyimba, ariko igiciro kiri hejuru. Mubisanzwe, umukozi umwe ubika amazi ntashobora kugera kubikorwa byiza byo kubika amazi, kandi guhuza ibintu bitandukanye bigumana amazi ntibishobora kunoza imikoreshereze yimikoreshereze gusa, ahubwo binagabanya igiciro cyibikoresho bishingiye kuri gypsumu.

Nigute kubika amazi bigira ingaruka kumiterere yibikoresho bya gypsumu yibikoresho bya simaitima?

Igisubizo: Igipimo cyo gufata amazi cyiyongera hiyongereyeho methyl selulose ether iri hagati ya 0.05% na 0.4%. Iyo amafaranga yiyongereye yarushijeho kwiyongera, inzira yo kongera gufata amazi yagabanutse.