Benzotriazole@ZIF-8 Enhances the Corrosion Resistance and Conductivity of Carbon Nanotube/Epoxy Composite Coatings for Grounding Grid

Zhichuan Bao; Fang She; Xinyuan Peng; Feng Pei; Lulu Jia; Chengqi Xiao; Zhiguo Ye

doi:10.1049/ema3.70038

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Benzotriazole@ZIF-8 Enhances the Corrosion Resistance and Conductivity of Carbon Nanotube/Epoxy Composite Coatings for Grounding Grid

更新时间：2026-09-24

- Benzotriazole@ZIF-8 Enhances the Corrosion Resistance and Conductivity of Carbon Nanotube/Epoxy Composite Coatings for Grounding Grid
- Electrical Materials and Applications Vol. 3, Issue 1, (2026)
- 作者机构：
  
  1. School of Material Science and Engineering, Nanchang Hangkong University,Nanchang,China
  2. Contribution: Writing - original draft, Data curation
  3. Contribution: Methodology, Data curation, Investigation
  4. Jiangxi Provincial Key Laboratory of Lightweight Composite Materials,Nanchang,China
  5. Contribution: Conceptualization, Writing - review & editing
  6. State Grid JiangXi Electric Power Research Institute,Nanchang,China
  7. Contribution: Investigation, Project administration
  8. Contribution: Investigation
  9. Contribution: Formal analysis, Resources
  10. Contribution: Funding acquisition, Supervision
- 作者简介：
- 基金信息：
- DOI：10.1049/ema3.70038
  CLC：
- Published：2026
- 稿件说明：
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Zhichuan Bao, Fang She, Xinyuan Peng, et al. Benzotriazole@ZIF-8 Enhances the Corrosion Resistance and Conductivity of Carbon Nanotube/Epoxy Composite Coatings for Grounding Grid[J]. Electrical Materials and Applications, 2026, 3(1).
DOI：

Zhichuan Bao, Fang She, Xinyuan Peng, et al. Benzotriazole@ZIF-8 Enhances the Corrosion Resistance and Conductivity of Carbon Nanotube/Epoxy Composite Coatings for Grounding Grid[J]. Electrical Materials and Applications, 2026, 3(1). DOI： 10.1049/ema3.70038.

摘要

A ZB/CNTs/E606 conductive anti-corrosion composite coating was prepared on Q235 steel via a physical blending process. The coating consists of E606 epoxy resin as the matrix

carbon nanotubes (CNTs) as the conductive filler

and a metal-organic framework ZIF-8 encapsulating the corrosion inhibitor benzotriazole (BTA) as a functional modifier (denoted as ZB). The coating with 0.5 wt.% ZB retains low resistivity (∼10−2 Ω·m) after 30-day saline immersion/salt-spray exposure

exhibits high low-frequency (|Z|0.01Hz) impedance (3.3 × 105 Ω·cm2)

and shows no corrosion after 40-day salt-spray testing. Adhesion remains above 10 MPa in all tested conditions. The coating combines sustained conductivity

strong adhesion and active corrosion inhibition

offering a durable solution for grounding systems in aggressive environments.

Abstract

A ZB/CNTs/E606 conductive anti-corrosion composite coating was prepared on Q235 steel via a physical blending process. The coating consists of E606 epoxy resin as the matrix

carbon nanotubes (CNTs) as the conductive filler

exhibits high low-frequency (|Z|0.01Hz) impedance (3.3 × 105 Ω·cm2)

and shows no corrosion after 40-day salt-spray testing. Adhesion remains above 10 MPa in all tested conditions. The coating combines sustained conductivity

strong adhesion and active corrosion inhibition

offering a durable solution for grounding systems in aggressive environments.

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