Fig. 2: Multifunction of IOS-PA. | NPG Asia Materials

Fig. 2: Multifunction of IOS-PA.

From: A universal, multifunctional, high-practicability superhydrophobic paint for waterproofing grass houses

Fig. 2

a The WCAs of the paint-coated surfaces were tested after each abrasion cycle, and stable superhydrophobicity was obtained with almost all WCAs larger than 150°. b After sand impact for 50 cycles, the WCAs of the coatings remained high, also showing super water repellency. When placed in pH = 1 (c), pH = 7 (d), and pH = 14 (e) solutions for 4, 8, and 8 h, respectively, the coating still manifested super water repellency with high WCAs and low RCAs. f The WCAs on five coated samples (glass slide, fabric, wood, PE film, and ceramic wafer) changed upon oxygen plasma treatment and heating in an oven. After plasma treatment, the surface changed from superhydrophobic to hydrophilic, and then superhydrophobicity was obtained again after treatment at 150 °C for 5 min in an oven. The self-healing cycles could be repeated ten times. g Super water repellency was still obtained even after treatment at 150 °C for 100 h. h Coated paper was treated with extremely cold liquid nitrogen (LN) and dried at room temperature. The WCA and RA of the coated fabric were tested after 10 cycles of liquid nitrogen treatment.

Back to article page