Professor Baek Seung-hyun, Moon Hyung-pil and Kim Moon-ki of the Mechanical Engineering, Development of Nano composite
- 공과대학
- Hit5145
- 2020-05-26
Professor Baek Seung-hyun, Professor Moon Hyung-pil and Professor Kim Moon-ki of the Mechanical Engineering Department,
Development of High-Density Nanocomposite Materials that can be cured after damage
- Development of high-conductive nano-complex materials that can be cured after shape-shifting and damage
- Expected use for restoration of damaged electrical components and circuits
The research team led by Professor Baek Seung-hyun of the Department of Mechanical Engineering said it has developed a high-conductive nanocomposite material that can be cured after damage in collaboration with the research team of Prof. Moon Hyung-pil and Professor Kim Moon-ki. The joint research team succeeded in developing a high-conductivity nanocomposite material in which electrical conductivity is restored after 1,000 repeated damage and healing. Dr. Seo Dae-woo and K-Passella participated as co-authors.
Conductive materials that can be cured after shape deformation and damage are recently attracting attention as core technologies for future electric and electronic devices such as artificial skin, the Internet of Things, and bioelectronic devices. However, there were technical limitations that low electrical conductivity and conductivity would not be completely restored to its original state after mechanical and electrical damage.
The research team succeeded in synthesizing a network of silver nanoparticles of dense and uniformly dispersed satellite structures by chemically etching micro-silver particles during the composite material mixing process. A conductive network formed through electronic tunneling without direct connections between particles not only achieved high electrocardiogram but also recovered the original structure even if it was broken and restored, allowing the electrical conductivity of composite materials to be fully restored after 1,000 repeated damage and healing. Changes in mechanical properties were theoretically calculated, and conductivity remained stable even in flooded or long-term air-leaking environments.
The developed high-plastic nanocomposites are expected to be used to restore damaged electrical parts and circuits using robots in disaster situations or extreme environments where human access is restricted, such as rubber clay.