Salt crystallization-assisted degradation of epoxy resin surface in simulated marine environments

Feng, Zhigang; Song, Guang‐Ling; Wang, Zi Ming; Xu, Yuqing; Zheng, Dajiang; Wu, Pengpeng; Chen, Xiaodong

doi:10.1016/j.porgcoat.2020.105932

Cited by 17 publications

(13 citation statements)

References 48 publications

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“…They are basically used only in the lab, not Based on the understanding of the synergistically accelerated effect of salt water immersion and UV irradiation, the degradation of an organic coating in the marine tidal and splash zones may be better predicted. For example, it has been estimated that the acceleration effect of the E NaCl+UVA on epoxy degradation in the lab is approximately 20 times stronger than the natural environment in Xiamen island if the other factors can be neglected [120]. In other words, a one-month lab test will be equivalent to a 20-month island exposure.…”

Section: Discussionmentioning

confidence: 99%

Section: Synergistic Effectmentioning

confidence: 99%

“…Precipitated salt crystal particles may grow inside the pores or defects of a coating during drying in a wet-dry cycle, similar to the salt crystallization in a porous material [117][118][119]. This may lead to salt crystallization-assisted degradation of the organic coating in marine environments, which had not been realized before until the investigation by Feng et al [120]. When fast evaporation of the remaining solution on a coating surface particularly in a windy day leads to precipitated NaCl crystal particles growing in the microdefects or pores in the surface layer of a coating, a force ( p) would be built up after the NaCl crystal particles in contact with the pore inner walls [117,121,122].…”

Section: Saltmentioning

confidence: 99%

“…Experimentally, the epoxy resin surface after the alternate water immersion and UVA irradiation was indeed much rougher (see Figure 7). There was an obvious synergistic effect between the UV irradiation and the NaCl solution immersion on the coating degradation [120]. Based on the understanding of the synergistically accelerated effect of salt water immersion and UV irradiation, the degradation of an organic coating in the marine tidal and splash zones may be better predicted.…”

Section: Synergistic Effectmentioning

confidence: 99%

“…In different marine conditions, a coating may have different degrees of degradation or damage [120]. For example, epoxy resin fully immersed in 5 wt.% NaCl solution (E NaCl ) was found to have some small "particles" on the surface, while after alternate NaCl solution immersion and UV irradiation (E NaCl+UVA ) it had a rough surface with a layer of particles.…”

Section: Degradation and Damagementioning

confidence: 99%

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Modification, Degradation and Evaluation of a Few Organic Coatings for Some Marine Applications

Song

Feng

2020

CMD

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Organic coatings for marine applications must have great corrosion protection and antifouling performance. This review presents an overview of recent investigations into coating microstructure, corrosion protection performance, antifouling behavior, and evaluation methods, particularly the substrate effect and environmental influence on coating protectiveness, aiming to improve operational practice in the coating industry. The review indicates that the presence of defects in an organic coating is the root cause of the corrosion damage of the coating. The protection performance of a coating system can be enhanced by proper treatment of the substrate and physical modification of the coating. Environmental factors may synergistically accelerate the coating degradation. The long-term protection performance of a coating system is extremely difficult to predict without coating defect information. Non-fouling coating and self-repairing coatings may be promising antifouling approaches. Based on the review, some important research topics are suggested, such as the exploration of rapid evaluation methods, the development of long-term cost-effective antifouling coatings in real marine environments.

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Section: Discussionmentioning

confidence: 99%

Section: Synergistic Effectmentioning

confidence: 99%

Section: Saltmentioning

confidence: 99%

Section: Synergistic Effectmentioning

confidence: 99%

Section: Degradation and Damagementioning

confidence: 99%

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Modification, Degradation and Evaluation of a Few Organic Coatings for Some Marine Applications

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Feng

2020

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Overview of the challenges and current solutions in organic and hybrid coatings for historical monuments and architecture

Sims,

Furgal

2024

Polymer International

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Mankind has erected monoliths and stone structures for millennia to ensure stories and culture are passed on to future generations. In the modern era, monuments and architecture are designed with the intention of lasting several decades to hundreds of years and may utilize an arrangement of natural and synthetic materials. Choice of substrate helps ensure the longevity of these structures, but coatings are utilized to provide additional characteristics and subsequent protection to the finished product. Protective coatings come in a variety of base materials and are utilized to address specific degradation concerns of the project managers. Advances in this field focus on protection of the surface while preventing any unintended damage to the substrate. This mini‐review summarizes the advances in protective coatings useful for historical monuments and architecture up to January 2024.This article is protected by copyright. All rights reserved.

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The Combined Effect of Direct Current Polarization, Ultraviolet Radiation, and Saline Immersion on the Degradation of an Epoxy Coating

Song

Zheng

2023

J. of Materi Eng and Perform

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Salt crystallization-assisted degradation of epoxy resin surface in simulated marine environments

Cited by 17 publications

References 48 publications

Modification, Degradation and Evaluation of a Few Organic Coatings for Some Marine Applications

Modification, Degradation and Evaluation of a Few Organic Coatings for Some Marine Applications

Overview of the challenges and current solutions in organic and hybrid coatings for historical monuments and architecture

The Combined Effect of Direct Current Polarization, Ultraviolet Radiation, and Saline Immersion on the Degradation of an Epoxy Coating

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