화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2017년 봄 (04/05 ~ 04/07, 대전컨벤션센터)
권호 42권 1호
발표분야 고분자가공/복합재료
제목 Skin Percolated Core-shell Bead Composites for Electromagnetic Interference (EMI) Shielding
초록 As the electronic devices such as aircraft, mobile phone and automobile have been growth, electromagnetic interference shielding effectiveness (EMI SE) have received much attention. In general, metal with high conductivity is used to minimize EMI problem, which should cause the malfunction of the devices. However, their application using metallic materials is limited in technical demand, which has been efforts to reduce the weight of the devices. Electrically conductive polymer composites can resolve this challenge because of their lightweight, good processability, low cost compared to the conventional metal-based materials. Here we introduce the electromagnetic interference shielding effectiveness (EMI SE) of multilayered structure by connecting metal-coated polystyrene (PS) core-shell. Incorporating only 7 vol% of metal, the epoxy/core-shell composites with a 1 mm thick exhibit an EMI SE at 50 dB corresponding to 99.999% shielding of incident waves.
저자 선한나1, 박인경1, 서종환1, 변도영1, 김광진2, 남재도3
소속 1성균관대, 2Univ. of Nevada, 3Las Vegas
키워드 EMI shielding; Core-shell; Polymer composites
E-Mail