UkumanzisaI-ejenti ehlakazayo i-MFwe-coating akuthinti nje kuphela ukucaca kwe-coating, kodwa futhi kuthinta impahla yokulinganisa ye-coating. Ukucaca kwe-coating ngokuvamile kunqunywa ukuhlakazeka komswakama we-coating. Ukungafihli kwe-coating kuyisici sokugqoka. Lapho ukukhanya kuphezulu, kuba lula ukubona ungqimba olungezansi. Ukuphakama kwamandla okusibekela, amandla okuvala aphansi anamandla. Ngenxa yokuthi izinhlayiya ze-pigment zizinzile ngaphansi kwesenzo se-disperant dispersant emanzi, indawo yokulinganisa iyakhuphuka, engathuthukisa izici ze-Newton's fluid futhi inenzuzo endaweni yokulinganisa.
UkumanzisaI-ejenti ehlakazayo i-MFkuthuthukisa ukubonakala ngokuthinta ukusatshalaliswa kosayizi wezinhlayiyana zezingulube (iyunifomu eyengeziwe futhi encane). Nge-titanium dioxide, inkomba ephezulu ye-refractive kanye nezinhlayiya ezinkulu zingabonisa ngokuphumelelayo futhi zihlehlise ukukhanya kwamaza ahlukahlukene. Ukwengeza i-polymerI-ejenti ehlakazayo i-MFingathuthukisa indawo engaphezulu (inciphise i-polymer, inciphise usayizi wezinhlayiyana) futhi ithuthukise ukumbozwa. Ngemibala ekhanyayo, ama-polymer dispersants angathuthukisa ukusabalalisa usayizi wezinhlayiyana futhi avumele ukukhanya okwengeziwe kudlule (ukwandisa ukukhanya). Inani lokukhanya eliveziwe futhi elidlule endaweni linquma ukumbozwa noma ukukhanyela kwe-coating. Uhlobo lukapende nokuhlakazeka kwakho konke kwenza umehluko. Ngenxa yethonya lenkomba ye-refractive kanye nosayizi wezinhlayiyana, ukumboza umbala kunomthelela omkhulu ekukhanyeni okubonakalayo. Ngakho-ke, singathuthukisa ukucaca ngokungeza izithasiselo zokumboza.
Ukulinganisa ikhono le-coating ukusabalala endaweni ethile. Ukonakala kwendawo yokumboza kuvame ukubangelwa ukushuba kwendawo futhi kwenzeka ngokushesha uma kuqhathaniswa. Izimpawu zebhulashi ezimbanjeni zokuhlobisa nazo zivame ukubangelwa ukungalingani kahle. Ukuziphatha okufanelekile kokulinganisa kungachazwa yi-Newtonian mechanics. Kodwa ngemva kokuba i-pigment yethulwe ohlelweni, iyashintsha. Lokhu kungenxa yokuthi izinhlayiya zisengozini ye-thixotropy kanye ne-pseudoplasticity ngenxa yezibopho zamakhemikhali nokusebenzisana ngokomzimba. Ngakho-ke, singathuthukisa impahla yokulinganisa ngokungeza izithasiselo zokugqoka.
I-coating wetting dispersant ifaneleka ukugqoka, i-pigment, ukunamathisela umbala nezinye izigqoko zezimboni. Njengesengezo esivamile, i-coating wetting dispersant inethonya elikhulu ekuthuthukiseni ukucaca kanye nokucaba kwe-coating. Inani le-coating wetting dispersant lincane, kodwa liyadingeka ekukhiqizeni ukukhiqiza. I-Coating wetting dispersants ithinta ukucaca nokushelela kwe-coating, ngakho-ke kubaluleke kakhulu ukufaka ama-disperants wokumanzisa ekugqokeni.
Isikhathi sokuthumela: Jun-11-2022