Malaxit Co.

Sevinj Nadir Gizi Musaeva

Azad Agalar Oglu Bayramov

Irada Sultanaxmed Gizi Sultanaxmedova

Mirza Abdul Oglu Kurbanov

Nuru Arab Oglu Safarov

An electret composite comprising a polymer matrix material that contains particles of a piezoelectric material with deep trapping centers on the interphase boundaries between the matrix and particles of a piezoelectric material. The piezoelectric material may have a tetragonal or a rhombohedral structure, and the polymer matrix material may be selected from high-density polyethylene, polyvinylidene fluoride, and a copolymer of vinylidenechloride and tetrafluoroethylene. The composite has a potential difference&#x3e;500V, lifespan&#x3e;10 years, dielectric permeability&#x2267;20, specific electric resistance&#x2267;10Ohm&#xb7;m; provision of deep trapping centers on the interphase boundaries with activation energy in the range of 1 to 1.25 eV, and stable electret charge.

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Baku, Azerbaijan

Sevinj Nadir Gizi Musaeva