Emhlabeni wemidwebo nemidwebo,titanium dioxideumbala omhlophe uyisithako esibalulekile osekunesikhathi sithenjwa ngenxa yezakhiwo zakhona ezingavamile. Njengempahla eluhlaza esetshenziswa kabanzi, i-titanium dioxide idlala indima ebalulekile ekuhlinzekeni ukungafihli, ukukhanya nokuqina okudingekayo kumapende wekhwalithi ephezulu namanamathela. Kule bhulogi, sizobhekisisa ukubaluleka kwe-titanium dioxide white pigment embonini yokudweba nokuthi ilithole kanjani igama layo njengesithako esiyinhloko ekufezeni ukuqedwa okukhangayo nokuhlala isikhathi eside.
I-TiO2, eyaziwa nangokuthi i-titanium dioxide, iyi-titanium oxide eyenzeka ngokwemvelo enefomula yamakhemikhali i-TiO2. Yaziswa ngobumhlophe bayo obukhethekile, ukukhanya kanye nenkomba ephezulu ye-refractive, eyivumela ukuthi ihlakazeke ngempumelelo futhi ibonise ukukhanya. Lezi zakhiwo zenza i-TiO2 ibe i-pigment efanelekile ukuze kuzuzwe umbala omhlophe okhanyayo, ongacacile odingekayo ezinhlotsheni zezinhlelo zokusebenza, okuhlanganisa izakhiwo zezakhiwo, ezezimoto nezimboni. Inamandla amahle kakhulu okufihla nokugcina umbala, okuyenza ibe yinketho yokuqala yokufinyelela isiphetho esilinganayo, esihlala isikhathi eside.
Enye yezindima ezibaluleke kakhulu zeI-TiO2 umbala omhlophekumapende kanye nama-coatings yikhono layo lokuhlinzeka nge-opacity. I-opacity of peint ibhekisela ekhonweni layo lokumboza indawo engaphansi futhi ifihle noma yikuphi ukungapheleli noma umbala wangaphambilini. Izingulube ze-TiO2 zihamba phambili kule ndawo ngoba zivimbela ngempumelelo umbala we-substrate futhi zinikeze ukuqina, ngisho nesisekelo sombala owufunayo. Lokhu akugcini nje ngokuthuthukisa ukubukeka kwendawo yonke ependiwe, kodwa futhi kusiza ukuthuthukisa ukumelana nopende esimweni sezulu kanye nokonakaliswa kwe-UV.
Ngaphezu kokufiphala kwayo, izimibala-bala ezimhlophe ze-titanium dioxide zidlala indima ebalulekile ekuthuthukiseni ukuqina kopende nokunamalekwa. Inkomba yayo ephezulu ye-refractive ivumela ukuhlakazeka okukhulu kokukhanya, okusiza ekunciphiseni ukumuncwa kwemisebe ye-UV eyingozi engabangela ukuwohloka nokuncipha kopende. Lokhu nakho kunomthelela ekugcineni umbala wesikhathi eside kanye nokuvikelwa kwendawo kapende. Ngaphezu kwalokho, ukuqina kwamakhemikhali e-TiO2 kanye nokumelana nama-acids, ama-alkali nezinye izici zemvelo kuyenza ibe isithako esibalulekile ekutholeni izimbotshana ezinokumelana nesimo sezulu esihle kakhulu nokuphila isikhathi eside.
Ukuguquguquka kwe-titanium dioxide white pigment kudlulela ngalé kokusetshenziswa kwayo kumapende nasezindaweni ezinemihlobiso. Ibuye isetshenziswe kabanzi kumapulasitiki, oyinki nezinye izinhlelo zokusebenza ezidinga umbala omhlophe okhanyayo, i-opacity kanye nokumelana ne-UV. Ikhono layo lokuthuthukisa ukukhanga okubonakalayo nokuqina kwezinhlobonhlobo zemikhiqizo kuyenza ibe yimpahla ebalulekile ezimbonini ezibeka phambili ikhwalithi nokusebenza.
Kafushane, i-titanium dioxide emhlophe yombala idlala indima ebalulekile embonini yokudweba ngokunikeza ukukhanya okungenakuqhathaniswa, ukukhanya nokuqina kopende nezingubo. Izakhiwo zayo ezihlukile ziyenza ibe isithako esibalulekile ukuze kuzuzwe imiphumela emangalisayo yokubuka kanye nokuqeda okuhlala isikhathi eside ezinhlelweni ezihlukene. Njengoba isidingo samapende asebenza kahle kakhulu kanye nezingubo zokugqoka siqhubeka sikhula, ukubaluleka kwe-titanium dioxide yemibala emhlophe ekugcineni nasekuthuthukiseni ikhwalithi yomkhiqizo akukwazi ukweqiwa.
Isikhathi sokuthumela: Jan-22-2024