Enhanced electrical conductivity of silver nanoparticles decorated fabrics with sandwich micro-structure coating layer based on 'silver colloid effect'
| Autor: | Yuying Zhang, Shifeng Zhu, Zhao Hongtao, Shaojuan Chen, Lijun Qu, Mingwei Tian, Zengqing Li, Xiansheng Zhang |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Mechanical Engineering 02 engineering and technology Substrate (electronics) Conductivity engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Silver nanoparticle 0104 chemical sciences Polyester Coating Mechanics of Materials engineering Surface modification General Materials Science Composite material 0210 nano-technology Electrical conductor Layer (electronics) |
| Zdroj: | Materials Letters. 240:5-8 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2018.12.052 |
| Popis: | Surface modification of nonconductor fabric substrate for enhancing electrical conductivity is a desirable work of flexible wearable devices. In our work, silver conductive layer with sandwich micro-structure was decorated on polyester fabric, and such a sandwich micro-structure layer is composed of the inner polyurethane (PU) as the interface binder, the filling layer of the precipitating silver nanoparticles (AgNPs) as the conductive path via in-situ chemical synthesis, the outer PU layer as the shielding layer. The obtained sandwich micro-structure PET fabric possessed six orders of magnitude higher conductivity than that of the case without sandwich micro-structure. Such marvelous increasing conductivity can be attributed to the “silver colloid effect” which is deemed as approximation of conductive principle of silver conductive adhesives. The present study provides a potential strategy and theoretical basis for the preparation of low concentration silver conductive fabrics. |
| Databáze: | OpenAIRE |
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