Electrical Heaters for Anti/De-Icing of Polymer Structures

Shiverskii, Aleksei; Owais, Mohammad; Mahato, Biltu; Abaimov, Sergey G.

doi:10.3390/polym15061573

Cited by 10 publications

(1 citation statement)

References 164 publications

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“…Copper wiring, with a diameter of 125-150 µm and conductivity of ~ 2 ×10 7 S/m was used to make up the metallic embedded electrodes, since wiring of a smaller caliber was di cult to accomplish and broke during demolding and additional wiring attachment. Such wiring is common for use with multifunctional nanocomposites [41]. Samples with externally applied silver glue-based electrodes, as is common in literature with multifunctional nanocomposites [42][43][44], followed the same design principle with lines of the silver glue being made on the sample surfaces in the same region all along the sample periphery.…”

Section: Methodsmentioning

confidence: 99%

Multifunctional nanocomposite assessment using carbon nanotube fiber sensors

Butt,

Krasnikov,

Kondrashov

et al. 2024

Preprint

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Here, we propose a novel application of carbon nanotube fibers (CNTFs) for the one-step, dual-stage, non-destructive monitoring of multifunctional conductive nanocomposites. Hierarchical nanocomposites were created by embedding CNTFs into carbon nanotube (CNT) - modified matrices during their manufacturing to assess production variables. CNTFs are then left embedded in the structure for monitoring during nanocomposite application. We investigated the dependence of detection sensitivity and reliability on the CNTF diameter (~ 40–700 µm), electrical conductivity (~ 102-104 S/m), and the choice of measurement technique (2- and 4-point) for single-walled and multiwalled CNT fillers at different concentrations. The sensors showed promising sensitivity to CNT type and concentration, the results were independent of CNTF diameter and contact resistance, and showed low noise. For application monitoring, nanocomposites electrical and mechanical (tensile and cyclic) properties were tested to determine sensitivity to static and dynamic conditions. CNTFs did not cause any reduction in mechanical properties, unlike the losses observed for metallic electrodes (up to 60% reduction in ultimate tensile strength). CNTF-based evaluation of the electrical resistivity (between 102 — 106 Ohm∙cm) and dynamic electrical response (gauge factor between ~ 2 — 12) matched values from a standard electrode material. Microstructural analysis proved that this unique performance was due to the surface and internal volume infiltration of the nanocomposite matrices into the CNTFs, causing interconnection of the CNTs of the matrix and CNTFs. These findings show that CNTFs may be used to accurately monitor nanocomposite multifunctional properties both during manufacturing and application using one-step integration, regardless of the sample size and manufacturing technology.

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Section: Methodsmentioning

confidence: 99%

Multifunctional nanocomposite assessment using carbon nanotube fiber sensors

Butt,

Krasnikov,

Kondrashov

et al. 2024

Preprint

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Bio‐Inspired Hybrid Laser Direct Writing of Interfacial Adhesion for Universal Functional Coatings

Cai,

Miao,

Zhang

et al. 2024

Adv Funct Materials

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Enhancing interfacial adhesion between functional coatings and target surfaces facilitates long‐term stable service by mitigating interferences of mechanical mismatches. Design of mechanical interlocks affords an effective strategy to strengthen the interfacial bonding with durability and compatibility, but the in‐depth investigations are still lacked. Herein, a gecko‐inspired hierarchical strategy realized by hybrid laser direct writing is proposed, which incorporates an armored frame scale for surface protection and a riveted anchor scale for interlocks. Such dual‐scale configurations endow the functional coatings with the stronger adhesion to the targets than the pristine and mono‐scale cases, resulting in 2 orders of magnitude enhancement resistant to tape peeling tests. Utilizing this scheme, a laser‐induced integrated deicing system is in situ manufactured on thermoplastics, primarily comprising superhydrophobic structures, carbon‐based sensors as well as adhesive copper (Cu) interconnects and heaters, where Cu‐based devices exhibit superior resistance to water impacts and stress fatigue. Interfacing with signal processing modules, such an all‐in‐one system demonstrates real‐time temperature monitoring and high efficiency in deicing (4.24 folds faster than the control group). The facile route for intensified adhesion holds promise in the interfaces within advanced equipment and under harsh scenarios.

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