Titanium dioxide for ukumaka umgwaqo
Ukuchazwa Komkhiqizo
I-Titanium dioxide (Tio2) iyiminerali eyenzeka ngokwemvelo esetshenziswa kakhulu ezimbonini ezahlukahlukene. Uma kukhulunywa ngokumaka komgwaqo, i-titanium dioxide iyisithako esisemqoka ngenxa yezakhiwo zayo ezihlukile zokukhanya. Inkomba yayo ephezulu yokuvunyelwa iqinisekisa ukugqama okuhle nokubonakala, okwenza amamaki emigwaqo abonakala kakhulu ngisho nasezimeni eziphansi zokukhanya. Lokhu kubaluleke kakhulu lapho ushayela ebusuku noma ezimweni zezulu ezingezinhle lapho ukubonakala kuncishiswa kakhulu.
Ngaphezu kokubonakala okuphakeme, titanium dioxide unikeza ukuqina okuhlala isikhathi eside. Ukuvezwa kokumaka komgwaqo ezimweni ezinzima zezemvelo ezinjengethrafikhi esindayo, amazinga okushisa aphezulu nemisebe ye-UV ingadala ukonakala ngokushesha. Kodwa-ke, amamaki emigwaqo aqukethe i-Tio2 amelana kakhulu nokuphela, ukukhishwa nokugqokwa okubangelwa yilezi zinto, kuqinisekisa impilo ende yenkonzo kanye nezindleko eziphansi zokulungiswa.
Enye yezinzuzo eziphambili zokusebenzisa i-titanium dioxide yokumaka umgwaqo kungubungane bayo bezemvelo. Ngokungafani neminye imibala, titanium dioxide akuyona ingozi, okungeyona ingozi futhi ayibazi noma yiziphi izingozi zempilo emvelweni noma ezisebenzi. Ngokwengeziwe, amamaki omgwaqo ase-Titanium dioxide-based awakhiphi amakhemikhali alimazayo emkhathini, abenze babe inketho eqhubekayo yengqalasizinda yokuhamba.
Ngokwengeziwe, i-titanium dioxide inamandla okubonisa nokusakazeka ukukhanya, ukunciphisa isidingo sokukhanya okwengeziwe emgwaqweni. Akugcini nje kuphela ukuthi lokhu kugcina amandla futhi kuthuthukise ukuqina, futhi kuthuthukisa ukubonakala kwabashayeli nabahamba ngezinyawo.
Ngokwesicelo, i-Titanium Dioxide ingafakwa kalula ezintweni ezahlukahlukene zokumaka umgwaqo ezinjengopende, ama-thermoplastics kanye nama-epoxies. Ingasetshenziselwa ukumaka kwemigwaqo okuhlukahlukene, kufaka phakathi ama-centerlines, ama-edgelines, ama-crosswalks nezimpawu, uqinisekisa ukubukeka okungaguquki nokuhlangene ngaphesheya kwenethiwekhi yomgwaqo.
Ekwakhiweni okwakhiwa ngopende, ngaphezu kokukhetha i-Titanium Dioxide yebanga elifanele, elinye inkinga ebalulekile ukuthi unganquma kanjani ukusetshenziswa okuhle kwe-titanium dioxide. Lokhu kuncike esidlweni so-Opacity Coaticity kepha kuthengiswa ezinye izinto ezifana ne-PVC, emanzi kanye nokusabalalisa, ukuqina kwefilimu, okuqukethwe kwama-solids kanye nokuba khona kwemibala neminye imibala. Okokushisa kwekamelo lokuvuka okususelwa ku-solvent-based White White, okuqukethwe kwe-titanium dioxide kungakhethwa kusuka ku-350kg / 1000l ukuthola izigqoko ezisezingeni eliphakeme kuya ku-240kg / 1000l ukuthola izimbotshana zezomnotho lapho i-PVC ingu-17.5% noma isilinganiso se-0.75: 1. Umthamo oqinile ngu-70% ~ 50%; Ngopende we-latex wokuhlobisa, lapho i-PVC CPVC, inani le-Titanium Dioxide lingaqhutshwa nalapho kuncishiswa ngokwanda kwamandla okufihla ezomile. Kwezinye izindlela zokuhlanganisa ezomnotho, inani le-titanium dioxide lingancishiswa libe ngu-20kg / 1000l. Ezinkomeni zodonga oluphakeme lwangaphandle, okuqukethwe kwe-titanium dioxide kungancishiswa ngengxenye ethile, futhi ukunamathela kwefilimu yokuhlanganisa nakho kungandiswa.
