Piezoelectric and pyroelectric polymer PVDF and its application

The paper describes briefly the development history of the polymer with piezoelectricity and pyroelectricity, approaches the compositions, structures and piezoelectricity and pyroelectricity of the PVDF. The fabricating technology and the applications of film are introduced. Finally, the developing trend of PVDF with piezoelectricity and thermoelectricity and some problems which need further researches are discussed.