| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 가을 (10/26 ~ 10/28, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
20권 2호 |
| 발표분야 |
고분자_포스터 |
| 제목 |
High-dielectric-constant three-phase flexible polyimide nanocomposite film with embedded conducting core-shell polymer nanoparticles |
| 초록 |
A three-phase composite film with BaTiO3 and polypyrrole@polyimide (PPy@PI) core-shell nanoparticles embedded in a polyimide(PI) matrix was prepared by using a direct mixing and solution casting process. PPy@PI nanoparticles were used as the conductive filler which minimize the conducting path and provide space between each particle. Low loading level of PPy@PI nanoparticles in PI/BaTiO3 system enhanced the dielectric constant and suppressed the dielectric loss. The enhanced dielectric constant obtained for the three-phase composite film was found to be three times higher than that of the same system without PPy@PI. This is attributed to the synergistic enhancement of the ferroelectric ceramic filler (BaTiO3) and conductive filler (PPy) as well as the homogeneous dispersion. Such three-phase composite film is a potential material for embedded capacitors and can be fabricated easily into various shape due to its flexibility. |
| 저자 |
김윤호, 윤현우, 박노균, 강이영, 원종찬
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| 소속 |
KRICT |
| 키워드 |
polymer composite; dielectric property; conducting polymer; core-shell nanoparticle; polyimide
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| E-Mail |
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