| Budget Amount *help |
¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2013: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
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| Outline of Final Research Achievements |
We designed a piezoelectric polymer film actuator using poly(L-lactide) (PLLA) and poly(D-lactide) (PDLA) films. On the basis of their piezoelectric characteristics, we were able to realize a PDLA and PLLA multilayer film (PDLA/PLLA multilayer) with a simple structure. The PDLA/PLLA multilayer film of centimeter-order size shows a large piezoelectric resonance, and its piezoelectric performance is equivalent to that of a practical piezoelectric ceramic. First, we introduce the piezoelectric characteristics of a PLLA film and the concept of actuation system using PLLA film. Next, the fabrication process of PDLA/PLLA multilayer film and its piezoelectric characteristics were summarized. Finally, the typical examples of developed piezoelectric polymer actuation system using PDLA/PLLA multilayer film were described specifically in order to clarify the possibility of new application of piezoelectric polymer actuation system.
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