Graphene-polymer composite conductivity in air and water

Andryushchenko, V. A.; Sorokin, Dmitry; Morozova, M A; Solnyshkina, O. A.; Смовж, Д. В.

doi:10.1016/j.apsusc.2021.150843

Cited by 3 publications

(4 citation statements)

References 51 publications

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“…However, the response of graphene to humidity and temperature would not affect the sensing signal (Δ R ) of leakage detection. The operation conditions of a baghouse are not changed, and the resistance of graphene will reach a stationary value in constant humidity and temperature 27,28 . Therefore, the humidity and temperature in baghouse mainly influence the initial resistance of the sensing grid.…”

Section: Resultsmentioning

confidence: 99%

“…Due to the internal carrier mobility and carrier concentration can be changed by the temperature, the resistance of graphene decreased with the increase of temperature 26 . At the same time, the water molecules can change the band gap in graphene, so the resistance of graphene increased with the increasing of humidity 27 . However, the response of graphene to humidity and temperature would not affect the sensing signal (Δ R ) of leakage detection.…”

Section: Resultsmentioning

confidence: 99%

“…26 At the same time, the water molecules can change the band gap in graphene, so the resistance of graphene increased with the increasing of humidity. 27 However, the response of graphene to humidity and temperature would not affect the sensing signal (ΔR) of leakage detection. The operation conditions of a baghouse are not changed, and the resistance of graphene will reach a stationary value in constant humidity and temperature.…”

Section: Experimental Verification For Insitu Leakage Detection Of Si...mentioning

confidence: 99%

“…The operation conditions of a baghouse are not changed, and the resistance of graphene will reach a stationary value in constant humidity and temperature. 27,28 Therefore, the humidity and temperature in baghouse mainly influence the initial resistance of the sensing grid. Even an abnormal high temperature occurred, the resistance of sensing grid should be decreased because the graphene resistance decreased with the increasing of temperature, which is easy to distinguish from the increased resistance induced by the break of conductive threads.…”

Section: Experimental Verification For Insitu Leakage Detection Of Si...mentioning

confidence: 99%

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In‐situ leakage detection of single bag filter in baghouse based on the resistance change of conductive polymer fibers

Guo

Shen

et al. 2023

J of Applied Polymer Sci

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Baghouse is effective for controlling the particles emitted from industrial production, and the in‐situ leakage detection of a single bag filter is essential for maintaining the high filtration performance of the whole baghouse. In the present study, the changes of PM emission concentration induced by the leakage of the bag filter materials was studied. The results showed that the concentration of particles in the size range of 20–1000 nm significantly increased when the bag filter sample had three holes with a diameter of ~500 μm. In order to prevent the loss induced by the leakage of bag filter, a resistance sensing method was developed to detect the early leakage of single bag filter. The effectiveness of proposed sensing method was verified by detecting the leakage of polymethyl methacrylate (PMMA) bag filter. A sensing grid made of PMMA conductive threads was embedded in the PMMA bag filter, and the resistance change (ΔR) induced by the broken of sensing grid was used as sensing signal. The ΔR of sensing grid was 3.24, 3.31, and 3.05 Ω, respectively, when the bag filter failed due to the mechanical stress, chemical corrosion, and thermal erosion. Moreover, a model was proposed to predict the numbers of broken conductive PMMA threads that could indicate the damage area of the failed bag filter.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%