Solar heat reflective coating consisting of hierarchically assembled polystyrene nanoparticles

Zheng, Xiaohui; Tay, Siok-Wei; Liu, Yuanyuan; Hong, Liang

doi:10.1016/j.surfcoat.2015.01.052

Cited by 4 publications

(2 citation statements)

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“…For example, thermal insulation coatings consisting of hollow glass beads have been widely applied in the construction market. Heat reflective coatings also play an important role in the field of building thermal insulation due to their high reflectivity of sunlight, , and can be employed in building facades, roofs and other parts in order to reduce the energy consumption of air-conditioning in the summer. , …”

Section: Introductionmentioning

confidence: 99%

“…Heat reflective coatings also play an important role in the field of building thermal insulation due to their high reflectivity of sunlight, 3,4 and can be employed in building facades, roofs and other parts in order to reduce the energy consumption of air-conditioning in the summer. 5,6 A few centuries ago, humans discovered that white or light colored roofs were cooler than the corresponding black roofs. 7 This is because a white coating possesses the highest thermal reflectivity.…”

Section: ■ Introductionmentioning

confidence: 99%

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Dark, Infrared Reflective, and Superhydrophobic Coatings by Waterborne Resins

et al. 2018

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Recently, infrared reflective pigments possessing deep colors have attracted much attention. However, in polluted air, the coatings consisting of such pigments are easily contaminated which abates infrared reflectivity. In this work, black and infrared reflective pigments, fluorine silicon sol and a small number of SiO nanoparticles were introduced into waterborne epoxy resin emulsion and then coated on an aluminum plate. After drying, black coatings with infrared reflective and superhydrophobic (SH) properties were obtained. The average near-infrared (NIR) reflectivity of the coating over wavelength range of 780-2600 nm can reach 68%, which is much larger than that of carbon black coatings and even approaches that of white nano SiO coatings. Under the irradiation of a 275-W infrared lamp (with height 40 cm), the surface temperature of the coating is 63 °C, which is much lower than that of the carbon black coating (90 °C) and only 7 °C higher than that of the white nano SiO coating. Furthermore, the NIR reflective coating exhibited a typical SH property due to its low surface energy and high surface roughness, which may allow for self-cleaning performance in a practical environment, maintaining the coating's NIR reflective property.

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