Novel hierarchically structured fabrics were successfully fabricated by coating graphene oxide (GO) and depositing polytetrafluoroethylene (PTFE) nanoparticles on the surface of polyester (PET) fibres through suction filtration and magnetron sputtering, respectively. The structure, morphology and properties of the PTFE/GO/PET composite fabrics were characterised. The results revealed that the GO sheets had coated the surface of PET fabrics completely and the PTFE nanoparticles deposited on the GO/PET fabrics were compact and uniform. The as-prepared PTFE/GO/PET fabric showed the outstanding hydrophobic property that the contact angle (CA) reached up to 139°. Besides, the PTFE/GO/PET fabrics exhibited a remarkable capacity of adsorbing various organic solvents and oils from wastewater. More importantly, the CA and adsorption capacity of the PTFE/GO/PET fabrics showed no decrease anymore after 10 times of recycling use. The as-prepared material possesses a potential ability to adsorb organic solvents and oil from wastewater.

With the aim of evaluating corrosion inhibition for various inhibitors, a new qualitative method for corrosion inhibition effect test for magnesium and magnesium alloys was developed. The change of polarization current density of AZ61 magnesium alloy in electrochemical polarization experiments in alkali aqueous solution with 5mmol/L sodium dodecylsulphate(SDS), phytic acid(PA), ethylenediamine tetraacetic acid(EDTA), p-nitro-benzene-azo-resorcinol(PNBAR), acidum tannicum(AT) or stearic acid(SA) were tested. The SEM-EDS techniques and deposition experiment method were used for further confirmation of the corrosion inhibition. The results showed that those organic compounds which could form the inhibitor-magnesium precipitation in aqueous solution could be used as corrosion inhibitors for magnesium alloys to inhibit the increase of polarization current density as well as the dissolution and oxidation of magnesium alloys effectively.

Nanoscale titanium dioxide (TiO₂) films were deposited on the surface of polyester (PET), polypropylene (PP), and viscose fibers by using direct current (DC) reactive magnetron sputtering. The effect of different fibers on the surface structure and morphology of TiO₂ thin films was investigated by atomic force microscopy (AFM). The cohesion and adhesion of the brittle titanium dioxide coating on the soft manmade fiber substrates was analyzed by scanning electron microscopy (SEM). The SEM images of coating interfaces were captured after TiO₂ coated fibers were cut in a self-made simple apparatus. For comparison, the SEM images of the coating interfaces were captured after the coated fibers were broken in a single fiber strength tester. The results indicate that the characteristics of TiO₂ deposited films were related to the structure and the morphology of the thin films which were determined by surface energy and roughness of different manmade fibers. Relatively smooth and high energy surface ultimately yielded uniformly deposited film and better adsorption to TiO₂ clusters. The mechanical strength of the deposited film and the cohesion to the fiber substrate may be reduced for high surface roughness, because of the build-up of more micron cracks in the sputtering process.