期刊
JOURNAL OF NATURAL FIBERS
卷 20, 期 1, 页码 -出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15440478.2022.2128149
关键词
Stretchable composite; carbonyl iron powder; EM noise suppression
This study improves the stretchability of noise suppressors by using a carbonyl iron powder-polydimethylsiloxane composite with partially bonded interface, eliminating the tradeoff between electromagnetic suppression and stretchability.
With the technological progress of wearable electronics operated in 5 G network communication system, a stretchable noise suppressor at GHz bandwidth that is reliable under severe deformation coming from the user's motion should be developed. However, current material systems for the noise suppressor showed a limited stretchability. This study introduces a carbonyl iron powder - polydimethylsiloxane (CIP - PDMS) composite with partially bonded interface as a solution to enhance the stretchability. Modulation of CIP surface to have the partial interface bonding (CIP-PID) results in the ultra large strain of similar to 165% even at the 40 vol% of CIP-PIDs, while only similar to 71% of strain is observed for CIPs with the full interface bonding (CIP-FID). According to a microstructu ra I analysis and FEM simulation of the strained composite specimens, when partially bonded to CIP at the interface, the PDMS matrix forms a free surface that can be deformed like pure PDMS, resulting in high stretchability. The wettability of CIP offers protection against eddy current loss while retaining strong magnetic properties, suppressing the EM noise. Thus, the approach eliminates the tradeoff between EM suppression and stretchability.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据