I-starch ether isetshenziswa kakhulu ku-construction mortar, okungathinta ukuhambisana kwe-mortar ngokusekelwe ku-gypsum, usimende kanye ne-lime, futhi kushintshe ukwakheka kanye nokumelana nokuwa kwe-mortar. Ama-starch ether avame ukusetshenziswa kanye nama-non-modified and modified cellulose ethers. Ifaneleka kokubili izinhlelo ezingathathi hlangothi kanye ne-alkaline, futhi iyahambisana nezithasiselo eziningi emikhiqizweni ye-gypsum kanye ne-cement (njenge-surfactants, i-MC, i-starch kanye ne-polyvinyl acetate kanye namanye ama-polymer ancibilikayo emanzini).
Izici eziyinhloko:
(1) I-starch ether ivame ukusetshenziswa kanye ne-methyl cellulose ether, okubonisa umphumela omuhle wokubambisana phakathi kwalokhu okubili. Ukwengeza inani elifanele le-starch ether ku-methyl cellulose ether kungathuthukisa kakhulu ukumelana nokuwa kanye nokumelana nokushelela kwe-mortar, ngenani eliphakeme lesivuno.
(2) Ukwengeza inani elifanele le-starch ether ku-mortar equkethe i-methyl cellulose ether kungakhulisa kakhulu ukuhambisana kwe-mortar futhi kuthuthukise ukugeleza, okwenza ukwakheka kube bushelelezi futhi ukuklwebheka kube bushelelezi.
(3) Ukwengeza inani elifanele le-starch ether ku-mortar equkethe i-methyl cellulose ether kungandisa ukugcinwa kwamanzi kwe-mortar futhi kwandise isikhathi sokuvula.
(4) I-starch ether iyi-starch ether eguqulwe ngamakhemikhali encibilikayo emanzini, iyahambisana nezinye izithasiselo ku-dry powder mortar, esetshenziswa kabanzi kuma-adhesive ethayela, ku-repair mortar, ku-plaster plaster, ku-wall putty yangaphakathi nangaphandle, kuma-joints afakwe ku-gypsum kanye nezinto zokugcwalisa, ama-interface agents, ku-masonry mortar.
Izici ze-starch ether zitholakala kakhulu ku: (a) ukuthuthukisa ukumelana nokuwa; (b) ukuthuthukisa ukusebenza kahle; (c) ukuthuthukisa izinga lokugcina amanzi kwe-mortar.
Ububanzi bokusetshenziswa:
I-starch ether ifanelekela zonke izinhlobo ze-(samente, i-gypsum, i-lime-calcium) i-wall putty yangaphakathi nengaphandle, kanye nazo zonke izinhlobo ze-facing mortar kanye ne-plastering mortar.
Ingasetshenziswa njengengxube yemikhiqizo esekelwe kusimende, imikhiqizo esekelwe ku-gypsum kanye nemikhiqizo ye-lime-calcium. I-starch ether ihambisana kahle nezinye izakhiwo kanye nezingxube; ifaneleka kakhulu ezingxubeni ezomile zokwakha ezifana nodaka, izinamathiseli, ukuplasta kanye nezinto zokugoqa. Ama-starch ether kanye nama-methyl cellulose ether (ama-Tylose MC grades) asetshenziswa ndawonye ezingxubeni ezomile zokwakha ukuze anikeze ukuqina okuphezulu, isakhiwo esiqinile, ukumelana nokuwa kanye nokulula kokuphathwa. I-viscosity yama-mortar, izinamathiseli, ama-plaster kanye nama-roll render aqukethe ama-methyl cellulose ether aphezulu ingancishiswa ngokufaka ama-starch ether.
Isikhathi sokuthunyelwe: Juni-13-2023