Construction and Performance Control of Ultra-hydrophobic Infrared and Laser Compatible Stealth Coatings

ZHUANG Yueting; XU Guojuan; ZHANG Weigang; ZHANG Jialun; YANG Maozhan; TANG Wanqi; ZHANG Qianfeng

doi:10.19554/j.cnki.1001-3563.2025.13.035

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Packaging Engineering ›› 2025, Vol. 46 ›› Issue (13) : 313-325. DOI: 10.19554/j.cnki.1001-3563.2025.13.035

Equipment Protection

Construction and Performance Control of Ultra-hydrophobic Infrared and Laser Compatible Stealth Coatings

ZHUANG Yueting^1,2, XU Guojuan^1,2, ZHANG Weigang^1,*, ZHANG Jialun^1,2, YANG Maozhan^1,2, TANG Wanqi^1,2, ZHANG Qianfeng²

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Abstract

The work aims to prepare a composite coating with excellent mechanical properties, superhydrophobic properties, as well as low infrared emissivity and low near-infrared reflectance. The composite coating was prepared by glass rod scraping. The blend modified resin of polydimethylsiloxane (PDMS) and the acrylic modified polyurethane (APU) were used as the binder, Al as the infrared stealth material, multilayer graphene as the near-infrared absorber, and nano-SiO₂, silane coupling agent (KH560) and amino silane modifier (APTES) as the interface modifier. The effect of the proportion of each component on the properties of the coating was studied. When the total filler ratio was 45%, m_nano-SiO2∶m_GO+Al=4∶6, m_Al∶m_GO=6∶4, m_APU∶m_PDMS=1∶9, the reflectivity of the coating at 1.06 μm was as low as 42.1%, the emissivity at 8-14 μm was as low as 0.711 and the water contact angle was 150.5°. After KH560 and APTES were added for optimization (KH560 2% and APTES 4%), the coating performance was further improved. The infrared emissivity was as low as 0.697, the near-infrared reflectivity at 1.06 μm was as low as 41.5%, the water contact angle was as low as 151.5°, the adhesion was 1 level, the flexibility was 2 mm, and the impact strength was 50 kg·cm. The super hydrophobic coatings with low infrared emissivity and low near-infrared reflectivity have been successfully prepared, which can have important application value in the field of infrared and laser compatible stealth of various equipment, and can provide useful reference for the optimization of mechanical properties of super hydrophobic functional coatings.

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superhydrophobicity / low infrared emissivity / low near-infrared reflectivity / composite coatings / optimization of mechanical properties

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ZHUANG Yueting, XU Guojuan, ZHANG Weigang, ZHANG Jialun, YANG Maozhan, TANG Wanqi, ZHANG Qianfeng. Construction and Performance Control of Ultra-hydrophobic Infrared and Laser Compatible Stealth Coatings[J]. Packaging Engineering. 2025, 46(13): 313-325 https://doi.org/10.19554/j.cnki.1001-3563.2025.13.035

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