| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Improvement of electrical conductivity and electromagneic shielding characteristics of epoxy composite filled with multi walled carbon nanotube(MWNTs) and Ag flake |
| 초록 |
The electrical conductivity and electromagnetic shielding effectiveness (EMI SE) of epoxy composites filled with the MWNTs and silver powder was evaluated. MWNTs were chemically modified by H2SO4 / HNO3 solution for purifying and dispersion in polymer matrix. MWNTs has high aspect ratio and very low percolation threshold but cannot satisfy the requirements for materials providing shielding against electromagnetic waves. Conductive polymer composites are fabricated by the hybridization of surface modified MWNTs with Ag flake. Small amount of MWNTs enhances the conductivity and EMI SE of MWNTs/Ag/epoxy composites, by bridging the gap between the Ag particles. MWNTs/Ag/epoxy paste composites are coated on PET film using pressure spray gun. Effect of filler content, additives and coating thickness were investigated. |
| 저자 |
서흔영1, 홍선진1, 유철준2, 윤호규1
|
| 소속 |
1고려대, 2SK 하이닉스 |
| 키워드 |
epoxy; MWCNT; Ag flake; EMI SE
|
| E-Mail |
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