New methodical approaches for the investigation of weathered epoxy resins used for corrosion protection of steel constructions

Brand, Simon; Veith, Lothar; Baier, Roland; Dietrich, Christian; Schmid, Matthias; Ternes, Thomas A.

doi:10.1016/j.jhazmat.2020.122289

Cited by 13 publications

(4 citation statements)

References 16 publications

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“…The UV radiation of epoxy resins e.g. can lead to a chain scission of C―N bonds and ring opening reactions of oxirane groups ( Brand et al. 2020 , Kim and Urban 2000 , Liu et al.…”

Section: Discussionmentioning

confidence: 99%

“…(2014) studied the microstructural alteration of a polyamide-cured epoxy coating and discovered the formation of micropores along with an increased water barrier function upon UV-A irradiation. Brand et al. (2020) recently investigated irradiated coating surfaces and elucidated degradation pathways leading to the delamination of polyurethane top layers.…”

Section: Introductionmentioning

confidence: 99%

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UV aged epoxy coatings ̶ Ecotoxicological effects and released compounds

et al. 2021

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Highlights UV-A irradiated epoxy coatings led to decreased ecotoxicological effects. UV-A irradiated epoxy coatings released toxic transformation products. 4- tert- Butylphenol was identified as main driver for ecotoxicological effects. BPA and structural analogs contribute to estrogenic effects of irradiated materials.

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“…The UV radiation of epoxy resins e.g. can lead to a chain scission of C―N bonds and ring opening reactions of oxirane groups ( Brand et al. 2020 , Kim and Urban 2000 , Liu et al.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

UV aged epoxy coatings ̶ Ecotoxicological effects and released compounds

et al. 2021

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“…Among all kinds of coating anti-corrosion technologies, epoxy coatings are of great interest due to their excellent working properties and simple application process [ 15 , 16 ]. Previous studies have shown, however, that epoxy coatings contain hydrophilic groups that may form water seepage channels in harsh environments [ 17 , 18 ] and that epoxy coatings are brittle and prone to cracking when exposed to corrosive environments for long periods of time [ 19 , 20 ]. In an effort to overcome the poor durability of epoxy coatings, a considerable number of scholars in the field of coating corrosion protection have extensively examined complex coatings reinforced with polymers in recent years and have made great achievements in the field of epoxy coating corrosion protection.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Resistance of CeO2-GO/Epoxy Nanocomposite Coating in Simulated Seawater and Concrete Pore Solutions

Liu

Lyu

et al. 2023

Polymers

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Reinforced concrete structures in the marine environment face serious corrosion risks. Coating protection and adding corrosion inhibitors are the most economical and effective methods. In this study, a nano-composite anti-corrosion filler with a mass ratio of CeO2:GO = 4:1 was prepared by hydrothermally growing cerium oxide on the surface of graphene oxide. The filler was mixed with pure epoxy resin at a mass fraction of 0.5% to prepare a nano-composite epoxy coating. The basic properties of the prepared coating were evaluated from the aspects of surface hardness, adhesion grade, and anti-corrosion performance on Q235 low carbon steel subjected to simulated seawater and simulated concrete pore solutions. Results showed that after 90 days of service, the corrosion current density of the nanocomposite coating mixed with corrosion inhibitor was the lowest (Icorr = 1.001 × 10−9 A/cm2), and the protection efficiency was up to 99.92%. This study provides a theoretical foundation for solving the corrosion problem of Q235 low carbon steel in the marine environment.

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“…Monney et al 10,11 also investigated the photochemical degradation of an anhydride‐epoxy system using different techniques. Thomas A. Ternes et al 12 utilized the new methodical approaches combining time‐of‐flight secondary ion mass spectrometry with inductively coupled plasma mass spectrometry and liquid chromatography mass spectrometry for the investigation of weathered epoxy resins used for corrosion protection of steel constructions. Researchers paid attention to how to stabilize the properties of epoxy resins under the light irradiation.…”

Section: Introductionmentioning

confidence: 99%

Degradation of epoxy coatings cooperated with polyaniline nanowires in the outdoor environment

Gao

Wang

Cong

et al. 2020

Polymers for Advanced Techs

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Polyaniline (PANI)/epoxy composite coatings, as heavy‐duty corrosion protection coatings, might have great promise applications in marine and industrial environments. The weak weather resistance of epoxy resins, especially under the sunlight, directly reduces the service life of the epoxy composites coatings. Herein, the degradation behaviors of epoxy coatings with and without PANI nanowires in the outdoor environment were investigated by the multiple techniques and methods. The cracks occurred on the coating surface were observed by Field Emission Scanning Electron Microscopy, and the density change of the methyl group in the coatings was characterized by Attenuated Total Reflectance‐Fourier Transform Infrared spectroscopy. In addition, the mechanical properties including adhesion, hardness, flexibility and impact resistance of the coating were tested. The corrosion protection performance of epoxy coatings cooperated with and without PANI nanowires was investigated by Electrochemical Impedance Spectroscopy technique. A series of experimental results demonstrated that the degradation of the coating containing PANI nanowires was slowed down, which is attributed to that PANI nanowires served as the antioxidant and free radical scavenger in the epoxy coatings, and prolonged the service life of the epoxy resin.

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New methodical approaches for the investigation of weathered epoxy resins used for corrosion protection of steel constructions

Cited by 13 publications

References 16 publications

UV aged epoxy coatings ̶ Ecotoxicological effects and released compounds

UV aged epoxy coatings ̶ Ecotoxicological effects and released compounds

Corrosion Resistance of CeO2-GO/Epoxy Nanocomposite Coating in Simulated Seawater and Concrete Pore Solutions

Degradation of epoxy coatings cooperated with polyaniline nanowires in the outdoor environment

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