Journal
Scientific and technical journal of information technologies, mechanics and optics
UDK
Issue:6 (64)
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Electret properties of composite polymer materials on the basis of polypropylene were investigated. Investigations were done by methods of thermostimulated and isothermal relaxation of potential and X-ray diffraction analysis. It is shown that aluminium powder adding in pure polymer improves electret stability of original polymer. By a low-angled X-ray dispersion method it was shown that aluminium surface possesses clearly defined fractal properties. Fractal dimensions values indicate that aluminium surface fractions are rough.