Smart Coatings with Carbon Nanoparticles

Sánchez–Romate, Xoan F.; Jiménez‐Suárez, Alberto; Prolongo, S.G.

doi:10.5772/intechopen.92967

Cited by 3 publications

(3 citation statements)

References 72 publications

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“…The first result was expected, since it has been reported that MWCNTbased strain sensors have generally limited sensitivity. 13,66,67 Sensitivity is much higher in low density network since fewer parallel conduction pathways contribute to the electrical conductivity. 64 In this work, the MWCNT network at 1% wt loading is quite dense; therefore, the applied strain does not greatly affect the CNT-to-CNT pathways resulting in low sensitivity.…”

Section: Strain Sensing Resultsmentioning

confidence: 99%

Graphene nanoplatelet, multiwall carbon nanotube, and hybrid multiwall carbon nanotube–graphene nanoplatelet epoxy nanocomposites as strain sensing coatings

Bragaglia

Paleari

Lamastra

et al. 2021

Journal of Reinforced Plastics and Composites

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Strain monitoring is of great interest in order to check components structural life, to prevent catastrophic failures, and, possibly, to predict residual life in case of unexpected events. In this study, strain sensing epoxy-based coatings containing carbon nanotubes (MWCNTs), graphene nanoplatelets (GNPs), and a mix of the two (MWCNT+GNP) have been produced, with the same initial electrical resistivity, and applied on glass fiber reinforced composites. Morphological, mechanical, and electrical tests have been then performed evaluating the resistance variation and the strain sensing performance of the sensors. A theoretical model to relate the resulting gauge factors to the different types of nanofillers has been applied. The results showed that all systems present a strain sensing performance with different gauge factors (and hence sensitivity) at low strain: GNP samples showed the highest gauge factor (10.3), MWCNT samples the lowest (1.5), and the mixed system lies in the middle (4.3). From analytical analysis, the value of initial distance among conductive particles was found to be 0.3 nm in the case of MWCNT and 1.2 nm for GNP, explaining why the gauge factors of the produced sensors are different.

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Section: Strain Sensing Resultsmentioning

confidence: 99%

Graphene nanoplatelet, multiwall carbon nanotube, and hybrid multiwall carbon nanotube–graphene nanoplatelet epoxy nanocomposites as strain sensing coatings

Bragaglia

Paleari

Lamastra

et al. 2021

Journal of Reinforced Plastics and Composites

View full text Add to dashboard Cite

show abstract

“…Carbon nanomaterials have exceptional mechanical, electrical and thermal properties, as well as high chemical stability, making them quite promising for protecting against corrosion in space [60]. Moreover, carbon nanomaterials can be incorporated into various matrix materials which can then be applied to metal surfaces as a coating, providing a protective barrier preventing the attachment of corrosive species [61]. The ability of carbon nanomaterials to improve the adhesion and durability of protective coatings is another factor that makes them promising for space applications where long-term performance and reliability are critical [62].…”

Section: Importance Of Carbon Nanomaterials For the Corrosion Mitigationmentioning

confidence: 99%

Carbon Nanocomposites in Aerospace Technology: A Way to Protect Low-Orbit Satellites

et al. 2023

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Recent advancements in space technology and reduced launching cost led companies, defence and government organisations to turn their attention to low Earth orbit (LEO) and very low Earth orbit (VLEO) satellites, for they offer significant advantages over other types of spacecraft and present an attractive solution for observation, communication and other tasks. However, keeping satellites in LEO and VLEO presents a unique set of challenges, in addition to those typically associated with exposure to space environment such as damage from space debris, thermal fluctuations, radiation and thermal management in vacuum. The structural and functional elements of LEO and especially VLEO satellites are significantly affected by residual atmosphere and, in particular, atomic oxygen (AO). At VLEO, the remaining atmosphere is dense enough to create significant drag and quicky de-orbit satellites; thus, thrusters are needed to keep them on a stable orbit. Atomic oxygen-induced material erosion is another key challenge to overcome during the design phase of LEO and VLEO spacecraft. This review covered the corrosion interactions between the satellites and the low orbit environment, and how it can be minimised through the use of carbon-based nanomaterials and their composites. The review also discussed key mechanisms and challenges underpinning material design and fabrication, and it outlined the current research in this area.

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“…Smart coatings based on the polymer matrix doped with carbon nanomaterials, such as carbon nanotubes or graphene, enhance their performance, increasing their barrier properties, corrosion resistance, hardness, and wear strength [151][152][153][154][155]. This is a new generation of protective organic coatings, capable to respond intelligently to damage or external stimuli.…”

Section: Nanofabrication Aspects Of Green Procedures In Enhancing Coatings Multifunctionality (Green Corrosion Inhibitors Biomimetic Coatmentioning

confidence: 99%

Sustainable Coatings on Metallic Alloys as a Nowadays Challenge

2021

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Starting with a description of the meaning of sustainable coating nowadays, this review presents a selection of methods for sustainable coatings manufacture using raw materials, saving energy and costs. This selection creates an introduction for the coatings performances of intensively investigated coated alloys and their multifunctionality. There are many examples and EU recommendations to be discussed, and we especially chose to introduce sustainable coatings with both industrial and medical functions, such as bioinspired films and coatings on high-entropy alloys, biodegradable metallic alloys, etc. A special focus is on nanotechnology and nanomaterials in green procedures, enhancing coatings’ multifunctionality, introducing green corrosion inhibitors, smart additives, and coatings based on superhydrophobicity. The conclusions and future perspectives of sustainable and multifunctional coatings, as expressions of sustainable advanced materials, are based on important motivations of such studies.

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Smart Coatings with Carbon Nanoparticles

Cited by 3 publications

References 72 publications

Graphene nanoplatelet, multiwall carbon nanotube, and hybrid multiwall carbon nanotube–graphene nanoplatelet epoxy nanocomposites as strain sensing coatings

Graphene nanoplatelet, multiwall carbon nanotube, and hybrid multiwall carbon nanotube–graphene nanoplatelet epoxy nanocomposites as strain sensing coatings

Carbon Nanocomposites in Aerospace Technology: A Way to Protect Low-Orbit Satellites

Sustainable Coatings on Metallic Alloys as a Nowadays Challenge

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