Pre-stressed electric polarization method and device

The invention provides a pre-stressed electric polarization method and device. The parts, for carrying out electric polarization, of macromolecular organic films are adhered onto a grounded metal curved surface; the macromolecular organic films on two sides of the metal curved surface are pre-stressed, and the macromolecular organic films are tightly adhered to the metal curved surface and move on the metal curved surface; and an electric field is arranged above the metal curved surface. The advantage lies in that the films are tightly adhered with the metal conducting curved surface together through the manner that pre-stress is applied to two ends of the macromolecular organic films, and the metal conducting curved surface is grounded. Tight adhesion of the polypropylene films and the metal conducting curved surface is guaranteed due to certain pre-stress, and the method can guarantee the uniformity of electric polarization under the condition that the electric field is uniform. 本发明提供种预应力式电极化方法及装置，高分子有机薄膜进行