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分析了ＰＶＤＦ及其共聚物的压电机理，指出这些高聚物的压电性来自铁电体相的存在。在此基础上，探讨了提高聚合物压电性的制备方法。
The piezoelectric mechanism of PVDF and its copolymers was analyzed, and the piezoelectricity of these polymers was found to be from the ferroelectric phase. On this basis, the preparation method of improving the piezoelectricity of polymer was discussed.