| Polyaniline (PANI) is one of the most investigated conducting polymers (CP). It has been frequently studied due to its low cost, ease in preparation, good environmental stabilities, and high conductivity. Though, PANI has fine electrical dissipation, its conductivity is relative lower than metals. In order to enhance materials'conductivity and expand other functions, the polyaniline is usually combined with metal nanoparticles to prepare novel composite materials which have higher conductivity. So these new composite materials can satisfy people's higher electromagnetic interference shielding and antistatic requirements. In this paper, the metal particles were deposited on the surface of pre-PANI fabric by two methods of chemical and electrochemical, in order to form conductive network with the conductive polymer and metal.Firstly, the basic properties of PANI films on PET fabric surface in pre-plating conditions were investigated. On base of the experimental data, the reaction parameters including concentration of SnCl2 and AgNO3, sensitization temperature, activation temperature which influence the effect of electroless were studied in detail. The optimum conditions for preparing composite PET fabrics were as follows:the concentration of SnCl2 and AgNO3 were 15g/L and 2.0g/L, temperature of sensitization and activation were 35℃and 35℃. Otherwise, the effects of pre-plating conditions on conductivity and structure of polyaniline deposited on fabric surface were also investigated in detail by AFM, XPS and ICP.Secondly, to improve the performance of composite conducting fabric, electroless plating was used during depositing copper uniformly with ultrasonic. The effects of concentration of major salt, reducing agent, complexing agent, sodium hydroxide and substrate, time, temperature on the square resistance, the rate of metal deposition and fastness were discussed. The appropriate conditions of electroless plating were obtained, which were CuSO4 5g/L, potassium sodium tartrate 30g/L, sodium hydroxide 6g/L, reducing agent 24ml/L, reaction time within 15min, temperature keeping 45℃. It can be prepared with good electrical conductivity, corrosion resistance of the Metal/Polyaniline Composite Fabrics. XRD result indicated metal layer from face-centered cubic structure, particle size of about 16.05nm.Finally, polyaniline conducting fabrics is used as electrodes to electrodeposite metal with cyclic voltammetry and Linear Scan Voltammetry. Composite fabrics, electrodeposited metal in different currents, were compared in the weight gain rate and surface resistance. The properties of the samples were characterized by X-ray powder diffraction (XRD), SEM, EDS. The results show that the optimum conditions for preparing composite fabric by electrodepositing copper as follows:CUSO4 concentration of 0.8mol/L, Na2SO4 concentration of 0.4mol/L, sodium citrate concentration of 0.06mol/L, current density 0.08A/cm2. On the surface of fabric, the growth of a large metal particles, and the metal has a good shape, the size is about 38nm.
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