Iyini i-Polyurea Coating kanye ne-Polyurethane Coatings

I-Polyurea Coating kanye ne-Polyurethane Coatings

Ukufakwa kwe-polyurea

Ukufakwa kwe-polyurea ngokuyisisekelo kuwuhlelo lwezingxenye ezimbili olusekelwe ku-Amine enqanyuliwe i-prepolymer exhunywe ne-Isocyanate eyenza ukuxhumana kwe-urea. Ukuxhumanisa phakathi kwama-polymer asebenzayo kwenzeka ngesivinini esisheshayo kuzinga lokushisa elizungezile. Ngokuvamile lokhu kusabela akudingi noma iyiphi i-catalyst. Kusukela Pot-ukuphila enamathela enjalo ingaphakathi imizuzwana; uhlobo olukhethekile lwe-Plural Isibhamu sokufafaza sengxenye siyadingeka ukwenza isicelo.

Izembatho zingakha kufikela ku-500 kuya ku-1000 microns wogqinsi ku-appllication eyodwa. Ngenxa yobukhulu obunjalo bunikeza ukumelana okuhle kwamakhemikhali nokuhuzuka. Kodwa-ke, impahla efiselekayo incike kakhulu ekulungisweni kwendawo yento ezogqitshwa. Kunconywa ukuthi kuqhume isihlabathi noma kuqhunyiswe inhlabathi ngendlela evamile [isb, i-Sa 2½, SSPC-SP10/NACE No.2] eduze nensimbi emhlophe. Naphezu kobukhulu obunjalo obuphezulu kusanikeza ukuguquguquka okuhle kakhulu; ubude [cishe u-300%] kanye nokungena okuphansi. Ukusetshenziswa okujwayelekile kufaka phakathi ukhonkolo ikakhulukazi emhubheni wamanzi lapho amanzi aphakeme adlula khona ngesivinini esikhulu nokucindezela, uhlaka lwamathangi, i-flooring yezimboni kanye nesakhiwo sensimbi ehlukahlukene.

Polyurethane esinemthombo

Ukufakwa kwe-polyurethane kunikeza ifilimu elincanyana, isiphetho esicwebezelayo esiphakeme esinezici zokusebenza ezihlukile zesimo sezulu. Lokhu kunamathela kusetshenziswa cishe kuzo zonke izimakethe zezimboni ukuze kuhlinzekwe isiphetho esiqinile esiqinile esikwazi ukumelana nokugqwala, ukuhuzuka, nokuchayeka kumakhemikhali. Ama-polyurethanes ajwayele ukusetshenziselwa ukufaka ijazi eliphezulu le-epoxy ne-inorganic zinc.