| 2. | As a piezoelectric polymer , pvdf ( polyvinylindine fluoride ) has many advantages , many due to its mechanical properties , such as flexibility , high mechanical resistance , and dimensional stability . pvdf is a piezoelectric polymer , which was studied systematically and was applied extensively 与目前常用的无机物压电材料相比(如石英、压电陶瓷类)它还有声阻抗小、频率响应宽、介电常数小、耐冲击性强、便于加工成任意形状等优点。 |