Speaker
Description
In this study, the surface of filter paper was modified with TiO2-PDMS-KH550 nanocomposites using titanium isoproproxide (TTIP) as the starting material by spray coating technique. To obtain the desired active coating, the amount of PPIT in the mixture was changed by 0.39, 0.78, and 1.56 mmol. The wettability, microstructure of the coated papers, and durability and adhesion of the nanocomposite coatings with different TTIP content were determined using water contact angle (WCA) and sliding angle (WSA), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and ASTM D4060 Taber abrasion test with wheel type CS-10. The results showed that the sample prepared with a coating solution containing 0.78 mmol TTIP exhibited excellent superhydrophobicity with a WCA of 162.68° and a WSA of 2.45°, as well as excellent self-cleaning property. In addition, the paper exhibited a high abrasion resistance of 0.26% weight loss after 20 abrasion cycles and a water recovery efficiency of > 98% after 10 cycles. This was due to the fact that the nanocomposite particles adhering to the paper surface were uniformly distributed on the cellulose fibers, which directly affected the increased surface roughness and resulted in the excellent waterproof and self-cleaning properties of the produced paper. Due to its environmental friendliness and easy scalability, this paper could have potential for practical applications.
