Precipitation method to prepare conductive F-doped SnO2-coated rutile TiO2 whisker and its application in coating.

In this work, K₂Ti₄O₉ whiskers are prepared by adding a certain amount of NaCl as the whisker reaction slow-release agent. Rutile TiO₂ whiskers are obtained by ion exchange and microwave sintering method with K₂Ti₄O₉ whiskers as templates. The surface morphology and crystal structure of K₂Ti₄O₉ whiskers are analyzed and characterized by scanning electron microscope (SEM), X-ray diffractometer (XRD), X-ray photoelectron spectroscopy (XPS), and energy-dispersive X-ray spectroscopy (EDS). One-dimensional conductive whiskers of fluorine-doped tin dioxide-coated rutile titanium dioxide (FTO@TiO₂) were prepared by the hydrothermal chemical combined precipitation method. Under the optimized conditions, the resistivity of the conductive whiskers was 0.625 kΩ, and the Hunter whiteness is 80.3. Additionally, FTO@TiO₂ conductive nanomaterials were dispersed into acrylic polymer emulsion (APE) to make antistatic slurry and coat it on the surface of the polyester fabric. After the antistatic coating has dried, FTO@TiO₂ whiskers are located in the coating mold; FTO@TiO₂ whiskers bridge each other to form a current path, so that the fabric has antistatic properties. Under the best experimental parameters, the FTO@TiO₂ whiskers possessed excellent electrical conductivity, and the surface resistance of the coated fabric can reach 10⁶ Ω, and it presented certain antistatic properties as well. [ABSTRACT FROM AUTHOR]