High-efficiency graphene/epoxy composite coatings with outstanding thermal conductive and anti-corrosion performance

Yang, Zhengqing; Che, Jian; Zhang, Zhenzhong; Yu, Linbo; Hu, Maosen; Sun, Wen; Gao, Wei; Fan, Junzhe; Wang, Lida; Liu, Guichang

doi:10.1016/j.compositesa.2024.108152

Cited by 5 publications

(5 citation statements)

References 47 publications

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“…When the immersion time reached 198 h, the loose layer of the M silane film composite had been dissolved by the corrosive medium. Therefore, Figu is used for fi ing before 0.5 h, and Figure 6a is utilized when an inductive reactan appears [28]. Figure 7 shows the EIS of MAO film treated with silane KH560, BTSE, and DTMS, respectively.…”

Section: Long-term Immersion Experimentsmentioning

confidence: 99%

“…When the immersion time reached 198 h, the loose layer of the MAOsilane film composite had been dissolved by the corrosive medium. Therefore, Figure 6b is used for fitting before 0.5 h, and Figure 6a is utilized when an inductive reactance arc appears [28]. The low-frequency impedance modulus values (|Z|0.01Hz) can be used to evaluate the protective coating failure process [28].…”

Section: Long-term Immersion Experimentsmentioning

confidence: 99%

“…Therefore, Figure 6b is used for fitting before 0.5 h, and Figure 6a is utilized when an inductive reactance arc appears [28]. The low-frequency impedance modulus values (|Z|0.01Hz) can be used to evaluate the protective coating failure process [28]. Figure 8 shows |Z|0.01Hz before and after the silanization treatment of the MAO film.…”

Section: Long-term Immersion Experimentsmentioning

confidence: 99%

“…Additionally, during the early stage (stage I) of immersion (0.5-8 h), the |Z|0.01Hz of the MAO-silane composite layer decreased rapidly from 10 6 -10 7 Ω‧cm 2 to 10 4 -10 5 Ω‧cm 2 . From 8-96 h of immersion (stage II), the decrease in the |Z|0.01Hz slowed down with prolonged immersion time due to the gradual accumulation of corrosion products in The low-frequency impedance modulus values (|Z| 0.01Hz ) can be used to evaluate the protective coating failure process [28]. Figure 8 shows |Z| 0.01Hz before and after the silanization treatment of the MAO film.…”

Section: Long-term Immersion Experimentsmentioning

confidence: 99%

See 3 more Smart Citations

Improving the Corrosion Resistance of Micro-Arc Oxidization Film on AZ91D Mg Alloy through Silanization

Liu,

Yin,

et al. 2024

Metals

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The presence of inherent micro-pores and micro-cracks in the micro-arc oxidation (MAO) film of Mg alloys is a key factor contributing to substrate corrosion. A composite film layer with high corrosion resistance was achieved through silanizing the micro-arc oxidation film. The corrosion performance of the MAO films treated with various silane coupling agents was assessed through morphological characterization and electrochemical tests. SEM graphs depicted that the silane film can effectively seal the defects existing in micro-arc oxidation film, and electrochemical tests indicated the significant corrosion resistance improvement of MAO film after silanization treatment.

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Section: Long-term Immersion Experimentsmentioning

confidence: 99%

Section: Long-term Immersion Experimentsmentioning

confidence: 99%

Section: Long-term Immersion Experimentsmentioning

confidence: 99%

Section: Long-term Immersion Experimentsmentioning

confidence: 99%

See 2 more Smart Citations

Improving the Corrosion Resistance of Micro-Arc Oxidization Film on AZ91D Mg Alloy through Silanization

Liu,

Yin,

et al. 2024

Metals

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“…On the other hand, when coating cracks and pores appear, the corrosive medium permeates through the pores to the protected substrate surface, forming an electrolyte membrane layer [16,17]. This layer provides a pathway between the metal substrate and graphene conductive coating [18]. By applying ICCP to the substrate, an electrolytic cell system is formed, with the protected metal substrate serving as the cathode and graphene serving as the auxiliary anode.…”

Section: Introductionmentioning

confidence: 99%

Anticorrosion Method Combining Impressed Current Cathodic Protection and Coatings in Marine Atmospheric Environment

Deng,

Shangguan,

et al. 2024

Coatings

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In this study, a new anticorrosion method combining impressed current cathodic protection (ICCP) with coatings that can be applied to marine atmospheric environments is proposed. As the corrosion medium fills the cracks and pores of the coating, an electrolyte film layer is inevitably formed on the metal surface. Therefore, a graphene conductive coating with excellent chemical inertness and shielding performance is selected as the intermediate coating to form an electrolytic cell system with a metal substrate serving as the cathode and a graphene coating serving as the auxiliary anode. By studying the surface corrosion morphologies and electrochemical signals of the coating samples at different protection potentials and coating thicknesses, the optimal potential is determined to be 0.6 V, and the optimal coating thickness is determined to be 20 μm. The samples protected by the joint method have lower corrosion rates and better anticorrosion performance than those protected by the coatings alone.

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Functionalization and morphology control of graphene oxide for intelligent barrier coatings against corrosion

Ren,

Sun,

Fan

et al. 2024

Surface and Coatings Technology

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High-efficiency graphene/epoxy composite coatings with outstanding thermal conductive and anti-corrosion performance

Cited by 5 publications

References 47 publications

Improving the Corrosion Resistance of Micro-Arc Oxidization Film on AZ91D Mg Alloy through Silanization

Improving the Corrosion Resistance of Micro-Arc Oxidization Film on AZ91D Mg Alloy through Silanization

Anticorrosion Method Combining Impressed Current Cathodic Protection and Coatings in Marine Atmospheric Environment

Functionalization and morphology control of graphene oxide for intelligent barrier coatings against corrosion

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