Hong Kong University of Science and Technology Yao Shuhuai/Huang Baoling "AFM": Solar Nano Deicing Coating

During cold winter months, snow accumulation on high-voltage overhead transmission lines can seriously threaten the reliability of power transmission and communication systems

Recently, Prof.

Figure 1.

Specifically, the researchers developed a low-emissivity solar-assisted superhydrophobic (LE-SS) coating that can be sprayed on flat and complex curved surfaces, including power lines and cables

Figure 2.

【Design and manufacture of LE-SS coating】

Since TiN nanoparticles achieve strong selective absorption through localized surface plasmon resonance in the visible region, TiN nanoparticles are selected as solar absorbing materials

【Low-temperature superhydrophobic double-scale particles】

As shown in Fig.

【Excellent solar thermal performance】

On a planar Al surface, the absorbance/emissivity spectra of the best LE-SS coatings are shown in Fig.

Figure 3.

【Process Compatibility of Flat and Curved Surfaces】

LE-SS spray coating is suitable for both flat and curved surfaces, as well as different substrates

Figure 4.

[De-icing performance of LE-SS coated cable]

To evaluate the deicing performance of the LE-SS coating, the researchers conducted comparative deicing experiments under different solar intensities on the pristine and LE-SS coated ACSR cables in a custom-made freezer (Fig.

Figure 5.

【summary】

The researchers developed a superhydrophobic solar thermal icephobic coating that is transparent in the mid-infrared region, yielding a low emissivity