Low temperature resistant, highly elastic hybrid Carbonized Melamine Foam for Pressure Sensing and EMI Shielding

Carbon nanotube (CNT)-embedded carbonized melamine foam (CNT/CMF) was fabricated by a direct pyrolysis process. Even at deep cryogenic conditions (-196 °C), the hybrid CNT/CMF showed tunable electrical conductivity while providing ultra-high elasticity for strain/pressure sensing and electromagnetic interference (EMI) shielding. Ultra-high sensitivity (up to 103.24 kPa-1) and wide pressure detection range (0-175 kPa) are achieved by the hybrid foam sensor, attributed to the hierarchical structure composed of nanofibrous carbon nanotube layers and macropores.

Low temperature resistant highly elastic hybrid carbonized melamine foam for pressure sensing and EMI shielding 1

The foam-based sensor exhibits ultra-high low temperature resistance, maintaining stable performance after immersion in liquid nitrogen for 36 hours and 5,000 repeated compression-release cycles. In addition, due to the highly porous structure CNT/CMF exhibits excellent EMI shielding effectiveness and high specific shielding effectiveness of 6147.3 dBcm2g1, it has an absorption-dominated shielding mechanism. The low temperature-resistant CNT/CMF with these excellent strain/pressure sensing and EMI shielding properties holds promise as a practical application for wearable electronic devices operating in mild and harsh environments.

Low temperature resistant highly elastic hybrid carbonized melamine foam for pressure sensing and EMI shielding 2

The ultra-high elasticity, excellent strain/pressure sensing and EMI shielding properties of the hybrid CNT/CMF, coupled with its facile and scalable fabrication method, make it very promising for various applications in flexible and wearable electronics

News Contact:
Email: marketing@sinoyqx.com

Tel: +86-28-8411-1861
Some pictures and texts are reproduced from the Internet, and the copyright belongs to the original author. If there is any infringement, please contact us to delete.