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Abstract: To achieve rapid and efficient manufacturing of reliable flexible circuits, this paper analyzes the wettability of Galinstan liquid metal with traditional electronic component pins and proposes a flexible circuit fabrication scheme based on a direct molding method using 3D printing with DLP technology. Stretch resistors and analog switch circuits fabricated by this method were tested under stretching and twisting conditions. The results show that for liquid metals exposed to air and wrapped with an oxide film, it is difficult to wet the pins of electronic components. By using a NaOH solution to encapsulate Galinstan, the rapid wettability of the pins of electronic components can be achieved, which can be completed in 2 seconds; The contact angle after infiltration has been increased from 131.5° to 19.7° and can be repeatedly wetted, confirming that Galinstan is a flexible circuit conductor material compatible with traditional electronic components. Additionally, the stretching curve of the flexible circuits made using the method proposed in this paper can be with a first-order function; It still has a stable resistance value, after 1000 stretching release cycles; The analog switch circuit can still working under 50% tension and 180 ° torsion. This indicates that the circuits good linearity, stability, and repeatability, effectively enabling the fabrication of flexible sensing elements and circuits, and providing a new approach for small-scale production of personalized electronic circuits.Abstract: To achieve rapid and efficient manufacturing of reliable flexible circuits, this paper analyzes the wettability of Galinstan liquid metal with traditional electronic component pins and proposes a flexible circuit fabrication scheme based on a direct molding method using 3D printing with DLP technology. Stretch resistors and analog switch circuits f...Learn More
Abstract: Aramid nanofiber (ANFs) is a new type of polymer nanofiber material, which has various excellent properties of macro aramid fibers. At the same time, its nanomaterials have a large specific surface area, light weight, and high strength, and are widely used. This article uses bibliometric research methods to search for relevant literature information on aramid nanofiber research in the Web of Science database and CNKI database from 2013 to 2022. VOSviewer econometric analysis software is used to visually analyze the trend of information changes in keywords, publication volume, high citation frequency, cooperative relationships, and co word clustering in relevant literature over the past decade, and to analyze the research trend in the field of aramid nanofiber materials in recent years, Summarize and elaborate on the research status, progress, and research hotspots of aramid nanofibers. The analysis results indicate that aramid nanofiber materials are an emerging field of material research, with an exponential increase in publication volume since 2018. From 2019 to 2022, the publication volume accounted for approximately 81% of the total amount during the research period. Relevant research is mostly published in journals such as ACS NANO, ADVANCED FINAL MATERIALS, NANOSCALE, and has high academic research value. The hot research field of aramid nanofibers mostly focuses on composite thin film materials and their mechanical properties. There is a strong correlation and complementarity between various research hotspots.Abstract: Aramid nanofiber (ANFs) is a new type of polymer nanofiber material, which has various excellent properties of macro aramid fibers. At the same time, its nanomaterials have a large specific surface area, light weight, and high strength, and are widely used. This article uses bibliometric research methods to search for relevant literature informatio...Learn More
