Research Projects

This project aims to develop a new generation of smart, multifunctional polymeric coatings that integrate infrared (IR) reflectivity, superhydrophobicity, and dust resistance in waterborne polyurethane (WPU) matrix by using bio-based polyols [1,2]. Therefore, this work will mainly focus to address a critical gap in the development of IR-reflective polymeric coatings that are both multifunctional and environmentally compatible. The core output will be the design and synthesis of coatings that exhibit strong solar infrared (IR) reflectivity (700–2500 nm) a spectral range that accounts for nearly 50% of total solar heat, and integrate this with superhydrophobicity and dust resistance for real-world durability. These coatings are intended for use on buildings, solar panels, and vehicles, with the goal of enhancing energy efficiency, reducing surface temperature, and minimizing maintenance due to environmental contamination [3,4]. The primary novelty lies in the multi-functional integration of thermal control, self-cleaning, and dust resistance behavior within a single, environmentally friendly coating system. Unlike conventional IR-reflective paints or hydrophobic films, this work will adopt a molecular-level design approach by modifying the WPU backbone with functional nanomaterials and surface-active agents. Advanced IR-reflective pigments (e.g., zinc oxide, titanium oxide, mixed metal oxide for example antimony doped tin oxide, indium tin oxide, vanadium dioxide) will be chemically grafted or physically dispersed within the WPU matrix to ensure long-lasting IR reflectance [5,6]. Simultaneously, the surface will be engineered to exhibit dual scale roughness and low surface energy, promoting superhydrophobicity (contact angle ≥150°) and dust repellency. The outcome will be a portfolio of scalable, eco-friendly coatings tailored for contributing the goals of sustainable infrastructure. References [1]. L. Yin, B. Zang, M. Tian, N. Ning, W. Wang (2024) https://doi.org/10.1016/j.porgcoat.2023.108095 [2]. C.Wang, J. Zhang, J. Chen, J. Shi, Y. Zhao (2022) https://doi.org/10.1016/j.ijbiomac.2022.03.066 [3]. H. Rout, V.A.Ganesh, A.S.Nair, S.Ramakrishna (2011) https://doi.org/10.1039/C1EE01297E [4]. P. Buskens, M. Burghoorn, M.C.Mourad, Z.Varoon https://doi.org/10.1021/acs.langmuir.6b00428 [5]. H. Huang, V. M. H. Ng, Y. Wu, L. B. Kong (2015) http://dx.doi.org/10.1016/j.matdes.2015.09.013 [6]. S.Kaenphakedee, S. Yodyingyong, J.Leelawattanachai, W. Triampo, J.Jitputti, D. Triampo, N.Sanpo (2020) http://dx.doi.org/10.4028/www.scientific.net/MSF.1007.143