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On the basis of a single screw extruder and vibration deagglomerator device it is designed and made equipment for mixing polymers and fillers. The performance facility was increased several times, due to a decrease in the viscosity of the melt caused by SHEAR THINNING effect caused by the vibrations. On the facility are received polypropylene carbon composites in a wide concentration range of the fillers. By optical and electron microscopy it was found that the dispersion of the carbon fillers in the polypropylene melt in extrusion assisted by vibration deagglomeration is better than the dispersion by conventional extrusion, due to the continuously changing deformation of both shear and extension, as well as the reduction of viscosity of the polymer melt. Despite the higher level of destruction of PP- (polypropylene) matrix due to the vibrations, better dispersion of the filler in this case compensates the decrease of the strength of the composites. Because of these reasons, the results in materials produced by both methods have the equal strength characteristics. It is developed physical model of the electrical conductivity of foamed polypropylene - carbon composites, which allows by measuring the macroscopic quantities / conductivity and density /, of the foamed material to make a rate of the parameters of the foamy structure.
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