Preparation and properties study of wave-transmitting and hydrophobic coatings

doi:10.19936/j.cnki.2096-8000.20230928.008

Abstract

Abstract: As the outermost material of the radome, the wave-transmitting coating not only protects and beautifies the radome, but also realizes the electromagnetic function of wave-transmitting. The hydrophobic coating on the surface of the radome can effectively reduce the adhesion of water droplets on its surface and reduce the influence of water droplets on the wave transmission performance of the radome. In this paper, a hydrophobic surface was constructed by incorporating mesoporous silica particles in a low-dielectric fluorocarbon resin coating. The research results show that the hydrophobic angle of the 10wt% silica particle coating system reaches 129.4°. At the same time, the modification of the mesoporous silica particles by the coupling agent improves the dispersibility of the particles in solution. We comparatively studied the impact resistance, pencil hardness, adhesion, dielectric properties, wave transmission properties of the coating systems. The results show that the coating ratio of modified 10wt% mesoporous silica particles has excellent comprehensive properties and wave-transmitting properties, and realizes the integration of wave-transmission and hydrophobic function of the randome coatings.

Key words: radome, wave transparent, hydrophobic, coating, mesoporous SiO₂, composites

CLC Number:

TB332

LI Huaifu, LIU Xumin, WANG Zhi, CHAI Pengjun. Preparation and properties study of wave-transmitting and hydrophobic coatings[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(9): 55-60.

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