期刊
ADVANCED MATERIALS
卷 33, 期 37, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202102736
关键词
glass fibers; laser ablation; papers; porous materials; sensors
类别
资金
- European Research Council Starting Grant GEL-SYS [757931]
- Austrian Research Promotion Agency GmbH (FFG) within the COMET project TextileUX [865791]
- Austrian Research Promotion Agency GmbH (FFG) BRIDGE Project Interactive Wood [874770]
- European Research Council (ERC) [757931] Funding Source: European Research Council (ERC)
Embedded sensors are essential for optimizing processes and products by collecting data to save time, energy, and materials. However, current sensors are not optimized for sustainable construction materials, leading to potential defects. The introduction of flexible and imperceptible iSens technology addresses this issue and represents a step towards realizing the Internet of Things for construction materials.
Embedded sensors are key to optimizing processes and products; they collect data that allow time, energy, and materials to be saved, thereby reducing costs. After production, they remain in place and are used to monitor the long-term structural health of buildings or aircraft. Fueled by climate change, sustainable construction materials such as wood and fiber composites are gaining importance. Current sensors are not optimized for use with these materials and often act as defects that cause catastrophic failures. Here, flexible, highly permeable, and imperceptible sensors (iSens) are introduced that integrate seamlessly into a component. Their porous substrates are readily infused with adhesives and withstand harsh conditions. In situ resistive temperature measurements and capacitive sensing allows monitoring of adhesives curing as used in wooden structures and fiber composites. The devices also act as heating elements to reduce the hardening time of the glue. Results are analyzed using numerical simulations and theoretical analysis. The suggested iSens technology is widely applicable and represents a step towards realizing the Internet of Things for construction materials.
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