Isitashi i-ether sisetshenziswa kakhulu ekwakhiweni kodaka, okungase kuthinte ukungaguquguquki kodaka olusekelwe ku-gypsum, usimende kanye nomcako, futhi kushintshe ukwakhiwa nokumelana ne-sag kodaka.Ama-ether esitashi ngokuvamile asetshenziswa ngokuhambisana nama-cellulose ether angaguquliwe futhi ashintshiwe.Ilungele kokubili izinhlelo ezingathathi hlangothi kanye ne-alkaline, futhi ihambisana nezithasiselo eziningi ze-gypsum kanye nemikhiqizo kasimende (njengama-surfactants, i-MC, isitashi ne-polyvinyl acetate namanye ama-polymers ancibilika emanzini).
Izici eziyinhloko:
(1) I-starch ether ivamise ukusetshenziswa kuhlanganiswe ne-methyl cellulose ether, okubonisa umphumela omuhle wokusebenzisana phakathi kwalokhu kokubili.Ukwengeza inani elifanelekile le-starch ether ku-methyl cellulose ether kungathuthukisa ngokuphawulekayo ukumelana nokushelela kanye nokumelana nokushelela kodaka , ngenani lesivuno esiphezulu.
(2) Ukwengeza inani elifanele le-starch ether odakeni oluqukethe i-methyl cellulose ether kungakhuphula ngokuphawulekayo ukuvumelana kodaka futhi kuthuthukise ukugeleza kwamanzi, kwenze ukwakhiwa kube bushelelezi futhi ukukhuhla kube bushelelezi.
(3) Ukwengeza inani elifanelekile le-starch ether odakeni oluqukethe i-methyl cellulose ether kungakhuphula ukugcinwa kwamanzi odaka futhi kwandise isikhathi sokuvula.
(4) I-starch ether iyi-ether yesitashi eguqulwe ngamakhemikhali encibilika emanzini, ehambisana nezinye izithasiselo odakeni lwempushana eyomile, esetshenziswa kakhulu ezintweni ezinamathelayo zamathayela, udaka lokulungisa, ukhonkolo olukhonkolo, i-putty yangaphakathi nengaphandle yodonga, Amalunga ashunyekiwe asuselwa ku-gypsum nezinto zokugcwalisa. , ama-interface agents, udaka lwamatshe.
Izici ze-starch ether ikakhulukazi zilele kulokhu: (a) ukuthuthukisa ukumelana ne-sag;(b) ukuthuthukisa ukusebenza kahle;(c) ukwenza ngcono izinga lokugcinwa kwamanzi odaka.
Ibanga lokusetshenziswa:
I-starch ether ilungele zonke izinhlobo (usimende, igypsum, i-lime-calcium) i-putty yangaphakathi yodonga lwangaphakathi nangaphandle, kanye nazo zonke izinhlobo zodaka olubheke phezulu nodaka lokuplasta.
Ingasetshenziswa njengengxube yemikhiqizo esekwe usimende, imikhiqizo esekwe ku-gypsum kanye nemikhiqizo ye-lime-calcium.Isitashi i-ether sinokuhambisana okuhle nokunye ukwakhiwa kanye nezingxube;ifaneleka ngokukhethekile ukwakhiwa kwezingxube ezomile ezifana nodaka, izinto zokunamathisela, ukuplasta kanye nezinto zokugoqa.Ama-ether esitashi nama-methyl cellulose ethers (amabanga e-Tylose MC) asetshenziswa ndawonye ekwakheni izingxube ezomile ukuze anikeze ukujiya okuphezulu, ukwakheka okuqinile, ukumelana nokuntenga kanye nokubamba kalula.I-viscosity yodaka, izinto zokunamathisela, izikhonkwane nama-roll renders aqukethe i-methyl cellulose ether ephezulu ingancishiswa ngokufakwa kwe-starch ethers.
Isikhathi sokuthumela: Jun-13-2023