Anti-corrosive and self-healing properties of epoxy coatings loaded with montmorillonite modified with zinc-based ionic liquid

Henriques, Ruan R.; Carelo, Jean C.; Soares, Bluma G.

doi:10.1016/j.porgcoat.2023.108185

Progress in Organic Coatings

2024

DOI: 10.1016/j.porgcoat.2023.108185

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Anti-corrosive and self-healing properties of epoxy coatings loaded with montmorillonite modified with zinc-based ionic liquid

Ruan R. Henriques,

Jean C. Carelo,

Bluma G. Soares

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2024

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Cited by 2 publications

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Advanced Micro/Nanocapsules for Self-Healing Coatings

Kartsonakis,

Kontiza,

Kanellopoulou

2024

Applied Sciences

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The concept of intelligence has many applications, such as in coatings and cyber security. Smart coatings have the ability to sense and/or respond to external stimuli and generally interact with their environment. Self-healing coatings represent a significant advance in improving material durability and performance using microcapsules and nanocontainers loaded with self-healing agents, catalysts, corrosion inhibitors, and water-repellents. These smart coatings can repair damage on their own and restore mechanical properties without external intervention and are inspired by biological systems. Properties that are affected by either momentary or continuous external stimuli in smart coatings include corrosion, fouling, fungal, self-healing, piezoelectric, and microbiological properties. These coating properties can be obtained via combinations of either organic or inorganic polymer phases, additives, and pigments. In this article, a review of the advancements in micro/nanocapsules for self-healing coatings is reported from the aspect of extrinsic self-healing ability. The concept of extrinsic self-healing coatings is based on the use of capsules or multichannel vascular systems loaded with healing agents/inhibitors. The result is that self-healing coatings exhibit improved properties compared to traditional coatings. Self-healing anticorrosive coating not only enhances passive barrier function but also realizes active defense. As a result, there is a significant improvement in the service life and overall performance of the coating. Future research should be devoted to refining self-healing mechanisms and developing cost-effective solutions for a wide range of industrial applications.

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Advanced Micro/Nanocapsules for Self-Healing Coatings

Kartsonakis,

Kontiza,

Kanellopoulou

2024

Applied Sciences

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The Effect of SiO2 Particle Size on Crystallization Behavior and Space Charge Properties for SiO2/MMT/LDPE Composites

Jiang,

Yuan,

et al. 2024

Materials

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The matrix material used in this paper was low-density polyethene (LDPE), and the added particles selected were silicon oxide (SiO2) particles and montmorillonite (MMT) particles. The sizes of the SiO2 particles were 1 µm, 30 nm, and 100 nm, respectively; three kinds of SiO2/MMT/LDPE multi-component composites were prepared based on MMT/LDPE composites doped with MMT particles. The effect of the SiO2 particle size on the crystallization behavior and space charge properties of SiO2/MMT/LDPE composites was studied. The crystalline behaviors and crystallinity of the materials were analyzed. At the same time, the changes in the relative dielectric constant εr and loss factor tanδ for each material with the influence of frequency were studied, and the space charge accumulation, residual characteristics, and apparent charge mobility of each material were explored. The results show that the smaller the size of the added particles, the smaller the grain size and the clearer the grain outline for the multi-composite material. After adding 30 nm SiO2 particles, the crystallinity of the material increases significantly. The microstructure formed by the addition of 100 nm SiO2 particles effectively restricts molecular chain movement and makes it difficult to establish the polarization of the composite. The incorporation of large-size particles can reduce the proportion of the crystalline structure for the material as a whole, resulting in the formation of a new structure to promote charge transfer. Among the three kinds of SiO2 particles, the addition of 30 nm SiO2 particles can effectively suppress the space charge, and the composite material has the lowest residual space charge after depolarization. The addition of 100 nm SiO2 particles can cause the accumulation of many homopolar charges near the anode.

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Anti-corrosive and self-healing properties of epoxy coatings loaded with montmorillonite modified with zinc-based ionic liquid

Cited by 2 publications

References 43 publications

Advanced Micro/Nanocapsules for Self-Healing Coatings

Advanced Micro/Nanocapsules for Self-Healing Coatings

The Effect of SiO2 Particle Size on Crystallization Behavior and Space Charge Properties for SiO2/MMT/LDPE Composites

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