Kwihlabathi lemizobo kunye neengubo zokulala,titanium dioxidei-pigment emhlophe sisithako esibalulekileyo ekudala sithenjwa kwiimpawu zayo ezikhethekileyo. Njengemathiriyeli ekrwada esetyenziswa ngokubanzi, i-titanium dioxide idlala indima ebalulekileyo ekuboneleleni kokungafihli, ukuqaqamba kunye nokuqina okufunekayo kwiipeyinti ezikumgangatho ophezulu kunye neengubo. Kule bhlog, siza kujonga ngakumbi ukubaluleka kwe-titanium dioxide emhlophe yebala kwishishini lokupeyinta kunye nendlela elizuze ngayo igama layo njengesithako esiphambili ekufezekiseni okubonakalayo okunomtsalane kunye nokuthatha ixesha elide.
I-TiO2, eyaziwa ngokuba yi-titanium dioxide, yindalo ye-titanium oxide kunye ne-chemical formula TiO2. Ixabiswa ngenxa yobumhlophe bayo obukhethekileyo, ukukhanya kunye nesalathisi esiphezulu se-refractive, esivumela ukuba sisasazeke ngokufanelekileyo kwaye sibonise ukukhanya. Ezi zakhiwo zenza i-TiO2 ibe yi-pigment efanelekileyo yokufezekisa umbala omhlophe oqaqambileyo, opaque ofunekayo kwizicelo ezahlukeneyo, kubandakanya izakhiwo, iimoto kunye neengubo zemizi-mveliso. Inamandla okufihla agqwesileyo kunye nokugcina umbala, iyenza ibe lukhetho lokuqala lokufikelela ugqibelo oluhlala ixesha elide.
Enye yeendima ezibalulekileyo zeI-TiO2 ibala elimhlophekwiipeyinti kunye neengubo kukukwazi kwayo ukubonelela opacity. I-opacity yepeyinti ibhekisela ekukwazini kwayo ukugubungela indawo engaphantsi kunye nokufihla nakuphi na ukungafezeki okanye umbala wangaphambili. Ii-pigments ze-TiO2 zigqwesa kule ndawo kuba zithintela ngokufanelekileyo umbala we-substrate kwaye zibonelela ngokuqina, kunye nesiseko sombala wepeyinti oyifunayo. Oku akupheleli nje ekuphuculeni inkangeleko yonke yendawo epeyintiweyo, kodwa ikwanceda ukuphucula ukuxhathisa kwepeyinti kwimozulu kunye nokuthotywa kwe-UV.
Ukongezelela ekukhanyeni kwayo, i<em>titanium dioxide yebala elimhlophe idlala indima ephambili ekuphuculeni ukomelela kwepeyinti nezaleko. Isalathiso saso esiphezulu se-refractive sivumela ukusabalalisa ukukhanya okuphezulu, kunceda ukunciphisa ukufunxa imitha ye-UV eyingozi enokubangela ukuthotywa kwepeyinti kunye nokucima. Oku kunegalelo ekugcinweni kombala ixesha elide kunye nokukhuselwa kwendawo yepeyinti. Ukongeza, ukuzinza kweekhemikhali ze-TiO2 kunye nokuchasana ne-acids, i-alkalis kunye nezinye izinto zokusingqongileyo zenza ukuba ibe yinto eyimfuneko yokufumana iingubo ezinokumelana nemozulu ebalaseleyo kunye nokuphila ixesha elide.
Ukuguquguquka kwe-titanium dioxide white pigment kudlulela ngaphaya kokusetyenziswa kwayo kwiipeyinti kunye nokugquma. Ikwasetyenziswa ngokubanzi kwiiplastiki, ii-inki kunye nezinye izicelo ezifuna umbala omhlophe oqaqambileyo, opacity kunye nokumelana ne-UV. Ikhono layo lokuphucula ukubukeka okubonakalayo kunye nokuqina kweemveliso ezahlukeneyo kwenza ukuba ibe yimpahla ebalulekileyo kumashishini abeka phambili umgangatho kunye nokusebenza.
Isishwankathelo, i-titanium dioxide i-pigments emhlophe idlala indima ebalulekileyo kwishishini lokupeyinta ngokubonelela nge-opacity engalinganiyo, ukukhanya kunye nokuqina kwiipeyinti kunye neengubo. Iimpawu zayo ezikhethekileyo zenza ukuba ibe sisithako esiyimfuneko ekufezekiseni iziphumo ezibonwayo ezimangalisayo kunye nokugqitywa okuhlala ixesha elide kwiinkqubo ezahlukeneyo. Njengoko imfuno yepeyinti ephezulu yokusebenza kunye neengubo ziqhubeka zikhula, ukubaluleka kwe-titanium dioxide i-pigments emhlophe ekugcineni kunye nokuphucula umgangatho wemveliso ayikwazi ukugqithiswa.
Ixesha lokuposa: Jan-22-2024