I-cellulose ether kuya ku-gypsum mortar

Kokubili i-carboxymethyl cellulose kanye ne-methyl cellulose ingasetshenziswa njengama-ejenti okugcina amanzi okhonkolo, kodwa umphumela wokugcina amanzi we-carboxymethyl cellulose uphansi kakhulu kunalowo we-methyl cellulose, futhi i-carboxymethyl cellulose iqukethe usawoti wesodium, ngakho-ke ayifanele ukufakwa ukhonkolo. eParis.Inomphumela wokuhlehlisa futhi inciphisa amandla okhonkolo we-paris.I-Methyl cellulose iyinhlanganisela efanelekile yezinto zikasimende ze-gypsum ezihlanganisa ukugcinwa kwamanzi, ukujiya, ukuqinisa, kanye ne-viscosifying, ngaphandle kokuthi ezinye izinhlobo zinomthelela wokuhlehlisa lapho umthamo mkhulu.iphezulu kune-carboxymethyl cellulose.Ngenxa yalesi sizathu, izinto eziningi ze-gypsum composite gelling zisebenzisa indlela yokuhlanganisa i-carboxymethyl cellulose ne-methyl cellulose, ezingagcini nje ngokubonisa izici zazo (njengomphumela wokubambezela we-carboxymethyl cellulose, umphumela wokuqinisa we-methyl cellulose), futhi zisebenzisa izinzuzo zazo ezivamile. (njengokugcina kwawo amanzi kanye nomphumela wokujiya).Ngale ndlela, kokubili ukusebenza kokugcinwa kwamanzi kwe-gypsum cementitious material kanye nokusebenza okuphelele kwe-gypsum cementitious material kungathuthukiswa, kuyilapho ukukhuphuka kwezindleko kugcinwa endaweni ephansi kakhulu.

Ibaluleke kangakanani i-viscosity ye-methyl cellulose ether ku-gypsum mortar?

I-Viscosity iyipharamitha ebalulekile yei-methyl cellulose etherukusebenza.

Ngokuvamile, ukuphakama kwe-viscosity, kuba ngcono umphumela wokugcina amanzi we-gypsum mortar.Kodwa-ke, ukuphakama kwe-viscosity, ukuphakama kwesisindo se-molecule ye-methyl cellulose ether, kanye nokwehla okuhambisanayo ekuncibilikeni kwayo kuzoba nomthelela omubi emandleni nasekusebenzeni kokwakhiwa kodaka.Ukuphakama kwe-viscosity, kusobala kakhulu umphumela wokuqina odongeni, kodwa awulingani ngokuqondile.Ukuphakama kwe-viscosity, i-viscous yodaka olumanzi luyoba lukhulu.Ngesikhathi sokwakhiwa, kubonakala njengokunamathela ku-scraper nokunamathela okuphezulu ku-substrate.Kodwa akusizi ukwandisa amandla esakhiwo sodaka olumanzi ngokwalo.Ngaphezu kwalokho, ngesikhathi sokwakhiwa, ukusebenza kwe-anti-sag kodaka olumanzi akubonakali.Ngokuphambene, i-viscosity ethile emaphakathi nephansi kodwa eshintshiwe ye-methyl cellulose ethers inokusebenza okuhle kakhulu ekuthuthukiseni amandla esakhiwo sodaka olumanzi.

Kubaluleke kangakanani ukucoleka kwe-cellulose ether odakeni?

I-Fineness futhi iyinkomba yokusebenza ebalulekile ye-methyl cellulose ether.I-MC esetshenziselwa udaka lwempushana eyomile idingeka ukuthi ibe yimpushana enamanzi aphansi, futhi ukucoleka kudinga u-20% kuya ku-60% wosayizi wezinhlayiyana ukuba ube ngaphansi kwama-63m.Ukucoleka kuthinta ukunyibilika kwe-methyl cellulose ether.I-coarse MC ivamise ukuba yi-granular, okulula ukuyihlakaza nokuncibilika emanzini ngaphandle kwe-agglomeration, kodwa izinga lokuhlakazeka lihamba kancane kakhulu, ngakho-ke alifanelekile ukusetshenziswa kudaka olomile lwempuphu.Eminye imikhiqizo yasekhaya i-flocculent, akulula ukuyihlakaza futhi incibilike emanzini, futhi kulula ukuyihlanganisa .Odakeni lwempushana olomile, i-MC ihlakazwa phakathi kwama-aggregates, izigcwalisi ezinhle nosimende nezinye izinto zikasimende.Impushana enhle ngokwanele kuphela engagwema i-methyl cellulose ether agglomeration lapho ixutshwa namanzi.Lapho i-MC yengezwe ngamanzi ukuze ihlakaze ama-agglomerate, kunzima kakhulu ukuhlakazeka nokuhlakazeka.I-coarse MC ayigcini nje ngokumosha, kodwa futhi inciphisa amandla endawo odaka.Uma udaka olunjalo lwe-powder elomile lusetshenziswa endaweni enkulu, isivinini sokuphulukisa sodaka lwendawo sizoncishiswa kakhulu, futhi imifantu izovela ngenxa yezikhathi ezahlukene zokuphulukisa.Ngodaka olufuthwe ngokwakhiwa kwemishini, imfuneko yokucwenga iphakeme ngenxa yesikhathi esifushane sokuxuba.

Ukucoleka kwe-MC nakho kunomthelela othile ekugcineni kwayo amanzi.Ngokuvamile, kuma-methyl cellulose ether ane-viscosity efanayo kodwa ukucoleka okuhlukile, ngaphansi kwenani elifanayo lesengezo, ukucoleka kuya kuba ngcono umphumela wokugcina amanzi.