Effect of doping graphene oxide on the structure and properties of SiO2 based high emissivity coatings. Issue 23 (16th December 2019)

• Record Type: Journal Article
• Authors: Song, Guangping; He, Shifeng; He, Fei; Yao, Yongtao; Li, Jianjun; Li, Mingwei; He, Xiaodong
• Is Part Of: Journal of applied polymer science. Volume 137:Issue 23(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-12-16
• Subjects: graphene oxide -- high emissivity -- SiO2 coating -- spray deposition; Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.48794
• Languages: English
• ISSNs: 0021-8995

Abstract

ABSTRACT: High emissivity coatings have received a great attention due to their energy saving capability for using in spacecraft and industrial furnaces applications. In this study, a feasible spray deposition method was employed to prepare a high emissivity coating on Kovar alloy substrate with porous structure after heat treatment. Graphene oxide was used to dope coating to improve its emissivity. The emissivity enhancement mechanisms of the graphene oxide doped SiO2 coatings have been investigated. Results show that coating emissivity can be significantly improved (6.41 and 9.64% of coating emissivity at 500 and 800°C, respectively) by doping graphene oxide. Thus, this study proposed a feasible and effective method to prepare high emissivity coatings. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48794. Abstract :