Isici sesihlalo sangasese se-UF

I-Urea formaldehyde (UF） isihlalo sangaseseisetshenziselwa kakhulu ukulungisa upende wokubhaka we-amino alkyd nge-alkyd resin ukuze kuthuthukiswe ubulukhuni nokomisa kwefilimu kapende. Isihlalo sendlu yangasese ye-UF singahlanganiswa ne-alkyd resin engomisi ukwenza upende wama-amino okwelapha nge-asidi, ongasetshenziselwa ukumboza ukukhanya kwefenisha yokhuni. Kodwa ukumelana nesimo sezulu, ukumelana namanzi nokugcinwa kokukhanya kubi kancane. I-epoxy resin ne-alkyd resin ingasetshenziswa ukulungisa ama-primers namapende angaphakathi anezici ezahlukene. Izici eziyinhloko zifaka:

1. Inani leisihlalo sangasese se-UFishibhile futhi izinto zokusetshenziswa zanele.

2. Isakhiwo samangqamuzanaisihlalo sangasese se-urea formaldehyde(UF).iqukethe ama-athomu omoya we-polar, ngakho inokunamathela okuhle phezulu. Ingasetshenziselwa i-primer kanye ne-intermediate coating ukuze kuthuthukiswe ukunamathela phakathi kwamajazi aphezulu.

3. NgobaIsihlalo sangasese se-UFingelapheka ekamelweni lokushisa uma usebenzisa i-acid catalyst, ingasetshenziselwa ukufakwa kwezingxenye ezimbili zokhuni.

4. Ifilimu yopende ephulukisiwe nge-urea formaldehyde resin inokuguquguquka okuhle.

5. I-Urea formaldehyde resin ine-viscosity ephezulu, inani le-asidi ephezulu kanye nokungaqini kahle kwesitoreji.