| 학회 |
한국재료학회 |
| 학술대회 |
2012년 가을 (11/07 ~ 11/09, 라카이샌드파인 리조트) |
| 권호 |
18권 2호 |
| 발표분야 |
A. 전자/반도체 재료(Electronic and Semiconductor Materials) |
| 제목 |
Dielectric Properties of Ceramic/Polymer Composites with Interface Modification |
| 초록 |
Effects of ceramic content and amphiphilic coupling agent on the microwave dielectric properties of MgTiO3/polystyrene (PS) and MgTiO3/polypropylene (PP) composites were investigated. To improve the interfacial adhesion between MgTiO3 and PS and/or PP, a coupling agent, trimethyloctylammonium bromide (TMOB) was used to treat the MgTiO3. The surface chemistry of the treated MgTiO3 particles was evaluated using FT-IR technique. With increasing of MgTiO3 content, the dielectric constant (K) of the composites increased, while the dielectric loss (tanδ) decreased. The MgTiO3/PS composites showed higher K and lower tanδ than those of MgTiO3/PP composites at a given MgTiO3 content. These results are due to the dielectric properties of the individual components. For the composites with same amount of the MgTiO3, the K of composites with interface modification was larger than that of the unmodified composites due to the improved interfacial adhesion. The temperature coefficient of resonant frequency (TCF) of the composites was also discussed. |
| 저자 |
Dong Hyeok Im1, Sang Ho Cha2, Eung Soo Kim3
|
| 소속 |
1Department of Materials Engineering, 2Kyonggi Univ., 3Department of Chemical Engineering |
| 키워드 |
Amphiphilic coupling agent; Dielectric properties; Composites
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| E-Mail |
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