抄録
We confirmed the presence of beta-phase of Poly(vinylidene fluoride) (PVDF) crystals when a PVDF solution was dropped on a substrate, then dried and formed as film (drop & dry fabrication). This study was conducted to investigate the beta-phase PVDF formation mechanism in drop & dry fabrication technique. First, PVDF films were fabricated by drop & dry fabrication technique. Second, their PVDF crystalline structure was analyzed using x-ray diffraction device. The presence of beta-phase PVDF crystals depends on the initial solution state and dry condition. Therefore, the effect of PVDF concentration in the solution, the quantity of the solution drop, and drying speed on beta-phase PVDF crystal formation was investigated, and the formation mechanism was discussed with the present experimental results.
