| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
Soft Magnetic Circuit Boards with Enhanced Water Repellency using Liquid Metal Ferrofluid Core-Shell Particles |
| 초록 |
Soft circuit board is compelling for use in fabricating soft and flexible electronics. To date, rigid metals and carbonaceous materials have been utilized to create the conductive trace on elastomeric substrates. Here, we used liquid metal (gallium) electrode because of its electrical conductivity while it is strained. The liquid metal can form the fluidic composites by mixing with ferromagnetic iron particles and the composites can break into small particles by sonication, resulting in electrically conductive and magnetically responsive core (iron)-shell (gallium) particles. The topography of the particles can be controllable by forming GaOOH crystals as a function of solvent type, resulting in hierarchical topography induced water repellency. The liquid metal shell of the core-shell particles is extremely soft, thus, a facile scratching can directly write the conductive traces on elastomeric substrate, resulting in electrically conductive and magnetically responsive circuit board. |
| 저자 |
김서연, 김시현, 홍경민, 김은선, 배예진, 박성준
|
| 소속 |
전북대 |
| 키워드 |
liquid metal ferrofluid; core-shell particle; stretchable magnetic circuit board; superhydrophobic surface
|
| E-Mail |
|
