Carboxymethyl selulose na methyl selulose byombi birashobora gukoreshwa nkibikoresho bigumana amazi ya plaster, ariko ingaruka zo kugumana amazi ya carboxymethyl selulose ziri munsi cyane ugereranije na methyl selulose, kandi carboxymethyl selulose irimo umunyu wa sodiumi, kubwibyo ntibikwiriye guhomeka paris. Ifite ingaruka zo kudindiza kandi igabanya imbaraga za plaster ya paris. Methyl selulose ni ikintu cyiza cyo kuvanga ibikoresho bya sima ya gypsumu ihuza gufata amazi, kubyimba, gukomera, no kwifata, usibye ko amoko amwe agira ingaruka mbi mugihe dosiye ari nini. hejuru ya carboxymethyl selile. Kubera iyo mpamvu, ibikoresho byinshi bya gypsum bigize gelling bifata uburyo bwo guhuza carboxymethyl selulose na methyl selulose, bitagaragaza gusa imiterere yabyo (nkingaruka zo kudindiza carboxymethyl selulose, ingaruka zishimangira methyl selulose), kandi bigakoresha inyungu zabo rusange (nk'amazi yo kubika amazi n'ingaruka zo kubyimba). Muri ubu buryo, imikorere yo gufata amazi yibikoresho bya sima ya gypsumu hamwe n’imikorere yuzuye yibikoresho bya sima ya gypsumu irashobora kunozwa, mugihe iyongerwa ryibiciro riguma kumurongo wo hasi.
Viscosity nikintu cyingenzi cyimikorere 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.
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.
Igihe cyo kohereza: Gashyantare-02-2023