Investigation of the Effects of Component Ratios on the Properties of Superhydrophobic Polyurethane/Fluorinated Acrylic Co-Polymer/SiO2 Nanocomposite Coatings

In this work, polyurethane/fluorinated acrylic co-polymer/silicon dioxide (PU/FAP/SiO2) hybrid superhydrophobic coatings were fabricated on glass substrates via a simple one-step coating process. The effects of each coating component on the coating properties were systematically investigated. The optimized coating exhibits a water contact angle (WCA) of 159 degrees and a rolling angle of 3 degrees. Meanwhile, the coating has an optical light transmittance of 88%, indicating the good transparency of the coating. Besides, the coating demonstrates an adequate level of abrasion resistance. After a total abrasion distance of 300 cm against a piece of 800 mesh sand paper, the sample still kept a water contact angle of about 110 degrees, showing its high abrasion resistance. Therefore, the optimized coating has a great potential for practical application.

Automated summary

A PU/FAP/SiO2 hybrid superhydrophobic coating with excellent properties including high water contact angle, low rolling angle, good transparency, and high abrasion resistance was fabricated. The optimized coating demonstrated great potential for practical application.