Novel anti-ultraviolet performances of thin films polyurethane containing nano-mixed oxides CeO-TiO
| Autor: | Dao Ngoc Nhiem, Nguyen Quang Bac, Doan Trung Dung, Pham Ngoc Chuc, Nguyen Thi Ha Chi, Duong Thi Lim |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Advances in Mechanical Engineering, Vol 10 (2018) |
| Druh dokumentu: | article |
| ISSN: | 1687-8140 16878140 |
| DOI: | 10.1177/1687814018816770 |
| Popis: | The nano-mixed oxides CeO 2 -TiO 2 was synthesized by gel combustion method using polyvinyl alcohol as fuel and mixtures of titanium trichloride and cerium(IV) nitrate at a relatively low calcination temperature of 550°C for 2 h. The prepared CeO 2 -TiO 2 nanoparticles with a specific area of 65.70 m 2 g −1 were dispersed in polyurethane matrix in different concentration conditions from 0.0 to 1.5 wt% to study ultraviolet durability following HONDA HES D 6501-97 standards. After 400 h of testing in the QUV accelerate weathering tester, the thin film containing 1 wt% CeO 2 -TiO 2 nano-mixed oxides has presented the noticeable capacity for absorbing ultraviolet light by only 6.8 g.u change in specular gloss at 60° and ΔE = 3.66 in color difference. |
| Databáze: | Directory of Open Access Journals |
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