I-Titanium Dioxide yokumaka emgwaqeni

I-Titanium dioxide (TiO2) iyiminerali eyenzeka ngokwemvelo evame ukusetshenziswa ezimbonini ezihlukahlukene. Uma kukhulunywa ngezimpawu zomgwaqo, i-titanium dioxide iyisithako esibalulekile ngenxa yezakhiwo zayo ezihlukile zokubona. Inkomba yayo ephezulu ye-refractive iqinisekisa ukukhanya okuhle kakhulu nokubonakala, okwenza izimpawu zomgwaqo zibonakale kakhulu ngisho nasezimeni eziphansi zokukhanya. Lokhu kubaluleke kakhulu lapho ushayela ebusuku noma esimweni sezulu esibi lapho ukubonakala kuncipha kakhulu.

Ngaphezu kokubonakala okuphezulu, i-titanium dioxide inikeza ukuqina okuhlala isikhathi eside. Ukuvezwa kwezimpawu zomgwaqo ezimweni ezinzima zemvelo ezifana nesiminyaminya, amazinga okushisa aphakeme kanye nemisebe ye-UV kungabangela ukuwohloka ngokushesha. Kodwa-ke, izimpawu zomgwaqo eziqukethe i-TiO2 zimelana kakhulu nokufiphala, ukuqhekeka nokuguga okubangelwa yilezi zici, okuqinisekisa impilo ende yesevisi kanye nezindleko zokunakekela eziphansi.

Enye yezinzuzo eziyinhloko zokusebenzisa i-titanium dioxide ukumaka emgwaqeni ukufaneleka kwayo kwemvelo. Ngokungafani nezinye izimibalabala, i-titanium dioxide ayinabo ubuthi, ayinabungozi futhi ayibeki ubungozi bezempilo emvelweni noma kubasebenzi. Ukwengeza, izimpawu zomgwaqo ezisekelwe ku-titanium dioxide azikhiphi amakhemikhali ayingozi emkhathini, okuwenza abe yindlela esimeme kakhudlwana yengqalasizinda yezokuthutha.

Ukwengeza, i-titanium dioxide inamandla okubonisa nokusabalalisa ukukhanya, inciphisa isidingo sokukhanyisa okwengeziwe emgwaqeni. Lokhu akugcini nje ngokuwonga amandla futhi kukhuthaze ukusimama, futhi kuthuthukisa ukubonakala kubashayeli nabahamba ngezinyawo.

Mayelana nokusetshenziswa, i-titanium dioxide ingafakwa kalula ezintweni ezihlukahlukene zokumaka emgwaqweni ezifana namapende, ama-thermoplastics nama-epoxies. Ingasetshenziselwa izinhlobonhlobo zezimpawu zomgwaqo, okuhlanganisa imigqa emaphakathi, onqenqemeni, iziphambano kanye nezimpawu, ukuqinisekisa ukubukeka okungaguquki nokuhlangene kuyo yonke inethiwekhi yomgwaqo.

Emklamo wokwakhiwa kopende, ngaphezu kokukhetha ibanga elifanele le-titanium dioxide, enye indaba eyinhloko ukuthi unganquma kanjani ukusetshenziswa okufanele kwe-titanium dioxide. Lokhu kuncike esidingweni sokungaboni kahle kokumboza kodwa futhi kudayiswa ngezinye izinto ezifana ne-PVC, ukumanzisa nokuhlakazeka, ukujiya kwefilimu, okuqukethwe okuqinile kanye nokuba khona kwezinye izingulube zombala. Ukuze uthole izinga lokushisa legumbi eliphulukisa izigqoko ezimhlophe ezisekelwe ku-solvent, okuqukethwe kwe-titanium dioxide kungakhethwa kusukela ku-350kg/1000L ukuze kuhlanganiswe izinga eliphezulu ukuya ku-240kg/1000L ukuze kuhlanganiswe ukonga lapho i-PVC ingu-17.5% noma isilinganiso esingu-0.75:1. Isilinganiso esiqinile singama-70% ~ 50%; ngopende wokuhlobisa we-latex, lapho i-PVC CPVC, inani le-titanium dioxide lingancishiswa ngokuqhubekayo nokwanda kwamandla okufihla okomile. Kwezinye izimo zokuhlanganisa ukonga, inani le-titanium dioxide lingancishiswa libe ngu-20kg/1000L. Ezakhiweni zangaphandle zezindonga zesakhiwo eziphakeme, okuqukethwe kwe-titanium dioxide kungancishiswa kube ingxenye ethile, futhi ukunamathela kwefilimu yokugqoka kungandiswa.