Dip-Coating Approach to Fabricate Durable PDMS/STA/SiO2 Superhydrophobic Polyester Fabrics

The facile, simple, highly efficient, and fluorine-free fabrication of superhydrophobic surfaces on fabrics with high durability has attracted considerable attention because its urgent practical application. simple dip-coating method was adopted to make a stable durable polydimethylsiloxane/stearic acid/silica (PDMS/STA/SiO2) fabric. fabric’s surface morphology, roughness, composition were analyzed by scanning electron microscopy, atomic force Fourier transform infrared spectroscopy, respectively. PDMS/STA/SiO2-coated fabric: demonstrated strong superhydrophobicity (a water contact angle (WCA) around 163°), efficiently repelled different liquids (milk, coffee, orange juice, Coca-Cola, 1 M HCl NaOH) above 155°, had excellent self-cleaning performance, retained WCA greater than 150° after 72 h ultraviolet irradiation 700 cycles mechanical abrasion. PDMS/STA/SiO2 coating few influences the color fastness Superhydrophobic coatings are expected be practically applied in textile industry.