Sol-gel coatings on carbon steel: Electrochemical evaluation

Pepe, Andrés; Galliano, Pablo; Aparicio, Mario; Durán, Alicia; Ceré, Silvia

doi:10.1016/j.surfcoat.2005.07.102

Cited by 69 publications

(41 citation statements)

References 14 publications

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“…The SKP measurements showed the presence of strong interfacial interaction, which is attributed to the interaction of phosphate group with the metallic substrate [130].…”

Section: Evaluation Of Corrosion Inhibitors Using Advanced Characterimentioning

confidence: 96%

Emerging Corrosion Inhibitors for Interfacial Coating

2017

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Abstract:Corrosion is a deterioration of a metal due to reaction with environment. The use of corrosion inhibitors is one of the most effective ways of protecting metal surfaces against corrosion. Their effectiveness is related to the chemical composition, their molecular structures and affinities for adsorption on the metal surface. This review focuses on the potential of ionic liquid, polyionic liquid (PIL) and graphene as promising corrosion inhibitors in emerging coatings due to their remarkable properties and various embedment or fabrication strategies. The review begins with a precise description of the synthesis, characterization and structure-property-performance relationship of such inhibitors for anti-corrosion coatings. It establishes a platform for the formation of new generation of PIL based coatings and shows that PIL corrosion inhibitors with various heteroatoms in different form can be employed for corrosion protection with higher barrier properties and protection of metal surface. However, such study is still in its infancy and there is significant scope to further develop new structures of PIL based corrosion inhibitors and coatings and study their behaviour in protection of metals. Besides, it is identified that the combination of ionic liquid, PIL and graphene could possibly contribute to the development of the ultimate corrosion inhibitor based coating.

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“…The SKP measurements showed the presence of strong interfacial interaction, which is attributed to the interaction of phosphate group with the metallic substrate [130].…”

Section: Evaluation Of Corrosion Inhibitors Using Advanced Characterimentioning

confidence: 96%

Emerging Corrosion Inhibitors for Interfacial Coating

2017

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“…In many instances, a dry gel needs further thermal treatment to be densified [20]. The sol-gel process versatility allows incorporation of additional components that introduce material's complementary functionalities, such as UV protection [21,22], anti-fouling [23,24], anti-reflection [25][26][27][28][29], moisture resistance [29][30][31][32][33], corrosion and adhesion protection [34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53], along with the enhancement of mechanical, thermal, and optical properties, opening a wide range of application in several fields of science. Furthermore, this method allows the control of several experimental conditions leading to a simple sequence that may be tuned to the nature, final shape, and desired function.…”

Section: General Background Of Sol-gel Coatings For Corrosion Mitigationmentioning

confidence: 99%

“…Nevertheless, only the most representative published in the last decade, will be referred. Several iron-based substrates have been studied, such as carbon steel [46,[59][60][61][62][63], 304, and 316 stainless steel [47,[64][65][66][67][68][69]. Chou et al [70] in 2003 produced hybrid coatings by copolymerizing TEOS and 3-methacryloxypropyltrimethoxysilane (MAPTS) ( Figure 5) in a two-step acid-catalyzed process.…”

Section: Corrosion Protective Sol-gel Coatings In Steel Substratesmentioning

confidence: 99%

Hybrid Sol-Gel Coatings: Smart and Green Materials for Corrosion Mitigation

et al. 2016

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Corrosion degradation of materials and metallic structures is one of the major issues that give rise to depreciation of assets, causing great financial outlays in their recovery and or prevention. Therefore, the development of active corrosion protection systems for metallic substrates is an issue of prime importance. The promising properties and wide application range of hybrid sol-gel-derived polymers have attracted significant attention over recent decades. The combination of organic polymers and inorganic materials in a single phase provides exceptional possibilities to tailor electrical, optical, anticorrosive, and mechanical properties for diverse applications. This unlimited design concept has led to the development of hybrid coatings for several applications, such as transparent plastics, glasses, and metals to prevent these substrates from permeation, mechanical abrasion, and corrosion, or even for decorative functions. Nevertheless, the development of new hybrid products requires a basic understanding of the fundamental chemistry, as well as of the parameters that influence the processing techniques, which will briefly be discussed. Additionally, this review will also summarize and discuss the most promising sol-gel coatings for corrosion protection of steel, aluminium, and their alloys conducted at an academic level.

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“…Although this initial corrosion process allows the formation of a protecting layer barrier, the corrosion that occurs initially is harmful and chromate conversion layers are usually used to prevent it. Due to toxicity of Cr(VI), these kinds of pre-treatments have been forbidden and hybrid coatings have been proposed as alternatives [1][2][3]. To evaluate the performance of these coatings, beyond the laboratory characterization, in situ tests in real conditions should be performed.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Protection of Hot Dip Galvanized Steel in Mortar

Figueira¹,

Pereira²,

Silva³

et al. 2013

Port. Electrochim. Acta

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Corrosion of steel in concrete is one of the major causes of structure degradation, requiring expensive maintenance. The using of hot dip galvanized steel (HDGS) has been recognized as one effective measure to increase the service life of reinforced concrete structures in marine environmental. However, HDGS corrodes in contact with high alkaline environment of fresh concrete. Although this initial corrosion process allows the formation of a protecting layer barrier, the corrosion that occurs initially is harmful and chromate conversion layers are usually used to prevent it. Due to toxicity of Cr(VI), these kinds of pre-treatments have been forbidden and hybrid coatings have been proposed as alternatives [1][2][3]. To evaluate the performance of these coatings, beyond the laboratory characterization, in situ tests in real conditions should be performed. An electrochemical system to measure the macrocell current density (i gal ) was designed to evaluate the degradation of HDGS coated samples with different organic-inorganic hybrid films, embedded in mortar during 70 days, using an automatic data acquisition system. This system revealed to be feasible and highly sensitive to coatings degradation. Also, allow distinguishing different hybrid coatings with different thicknesses.

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Sol-gel coatings on carbon steel: Electrochemical evaluation

Cited by 69 publications

References 14 publications

Emerging Corrosion Inhibitors for Interfacial Coating

Emerging Corrosion Inhibitors for Interfacial Coating

Hybrid Sol-Gel Coatings: Smart and Green Materials for Corrosion Mitigation

Corrosion Protection of Hot Dip Galvanized Steel in Mortar

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