The functional silica/polyamide-imide composite films were prepared via simple ultrasonic blending, after the silica nanoparticles were modified by cationic surfactant-cetyltrimethyl ammonium bromide (CTAB). The composite films were characterized by scanning electron microscope (SEM), thermo gravimetric analysis (TGA) and thermomechanical analysis (TMA). CTAB-modified silica nanoparticles were ...

The use of a polymeric Torlon (polyamide-imide) gasket material in a Paris-Edinburgh pressure cell for in situ high-pressure X-ray scattering measurements is demonstrated. The relatively low bulk modulus of the gasket allows for fine control of the sample pressure over the range 0.01-0.42 GPa. The quality of the data obtained in this way is suitable for Bragg and pair distribution function anal...

With an increasing demand for self-powered microelectronics to be used in scientific tasks and exploration missions extreme environments, the implementation of piezoelectric energy harvesting at high temperature is important research focus renewable sources. Piezoelectric composites made from ceramic fillers polymer matrices combine electromechanical coupling with flexibility, resulting a versa...

This research activity aims to evaluate electrical insulation system (EIS) intended for machine winding wires. The evaluation is based on mechanical, thermal, and properties tests following international standards enameled Dielectric parameters such as dissipation factor, partial discharge inception voltage (PDIV), parallel capacitance, resistance behavior of different insulator configurations ...