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Open AccessArticle

The Synergistic Effects of Sio2 Nanoparticles and Organic Photostabilizers for Enhanced Weathering Resistance of Acrylic Polyurethane Coating

1
Institute for Tropical Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi 122300, Vietnam
2
Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi 122300, Vietnam
3
High School of Education Sciences-University of Education, Viet Nam National University, Kieu Mai street, Bac Tu Liem, Hanoi 143510, Vietnam
*
Author to whom correspondence should be addressed.
J. Compos. Sci. 2020, 4(1), 23; https://doi.org/10.3390/jcs4010023
Received: 28 January 2020 / Revised: 21 February 2020 / Accepted: 24 February 2020 / Published: 26 February 2020
(This article belongs to the Special Issue Multifunctional Composites)
This study aims to evaluate the synergical effects of SiO2 nanoparticles (nano-SiO2) and organic photostabilizers (Tinuvin 384 (T384) and Tinuvin 292 (T292)) on the weathering resistance of acrylic polyurethane coating. Data obtained from infrared (IR), field emission scanning electron microscopy (FESEM), and weight loss of coatings (before and after aging test), suggest that the SiO2 nanoparticles play a dual role, as both reinforcer and UV absorber, thus improving effectively both the mechanical properties and the weathering resistance of polyurethane acrylic coatings. The nanocomposite coating containing 2 wt % nano-SiO2, 2 wt % T384, and 1 wt % T292 exhibits excellent weathering and abrasion resistances, offering a durable outdoor application. View Full-Text
Keywords: acrylic polyurethane coating; nanocomposite; nano-SiO2; mechanical properties; weathering resistance acrylic polyurethane coating; nanocomposite; nano-SiO2; mechanical properties; weathering resistance
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Nguyen, T.V.; Nguyen, T.A.; Nguyen, T.H. The Synergistic Effects of Sio2 Nanoparticles and Organic Photostabilizers for Enhanced Weathering Resistance of Acrylic Polyurethane Coating. J. Compos. Sci. 2020, 4, 23.

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