| 학회 |
한국공업화학회 |
| 학술대회 |
2013년 가을 (10/30 ~ 11/01, 대전컨벤션센터) |
| 권호 |
17권 2호 |
| 발표분야 |
포스터-고분자 |
| 제목 |
Enhancing the Bass Frequency Response of PVDF based Thin Film Acoustic Actuator: A Relationship between Frequency Response and Polymer Crystallinity |
| 초록 |
A high-performance of polyvinylidene fluoride (PVDF)-based thin film acoustic actuator with chemical vapor deposition (CVD) graphene electrodes was successfully fabricated. Importantly, a study of relationship between crystallinity of PVDF and bass frequency response enhanced acoustic actuator performance were investigated. High concentrations of Ba-doped SiO2/TiO2 hollow nanoparticles (Ba–HNPs) could be embedded into PVDF nanofibers at large-scale via electrospinning which made it possible to enhance the β phase content and the dielectric property of the pristine PVDF as a nucleating agent. Especially, PVDF with 15 wt% Ba–HNPs maximized 95 % β phase content, and it led to ca. 60 % increase in frequency response at bass frequencies. |
| 저자 |
LEE JAMES SANGMIN, 윤창민, 장정식
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| 소속 |
서울대 |
| 키워드 |
Acoustic Actuator; polyvinylidene fluoride (PVDF); Hollow nanoparticles; Crystallinity; Graphene electrode
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| E-Mail |
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