Novel anti-corrosion coatings from rubber-modified polybenzoxazine-based polyaniline composites

Caldona, Eugene B.; León, Arturo S.; Pajarito, Bryan B.; Advincula, Rigoberto C.

doi:10.1016/j.apsusc.2017.05.083

Cited by 63 publications

(34 citation statements)

References 74 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For further investigations, the fitting of experimental EIS data was accomplished by using the equivalent electrical circuits (Figure B). The equivalent circle consisted of R s , CPE coat , R pore , CPE dl , and R CT which were solution resistance, constant phase element of the coating, coating pore resistance, constant phase element of double layer and charge transfer resistance, respectively . The constant phase element (CPE) represented the deviation from the ideal capacitance behavior and used it in the equivalent circuit to determine the system error and obtain more suitable fitting results.…”

Section: Resultsmentioning

confidence: 99%

Enhancing the Corrosion Resistance of Epoxy Coatings by Impregnation with a Reduced Graphene Oxide‐Hydrophobic Ionic Liquid Composite

Wang

Zhang

et al. 2018

ChemElectroChem

View full text Add to dashboard Cite

Conventional epoxy resin fails as corrosion protection in long‐term soaking in water as pores are developing. Here, a modified epoxy coating with enhanced corrosion resistance was fabricated by impregnation with functionalized reduced graphene oxide‐hydrophobic ionic liquid (RGO‐IL) nano composites. The modified RGO was characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT‐IR), electrochemical impedance spectroscopy and simulated immersion experiments. Compared to epoxy resin (ER) coatings without RGO‐IL nano composites, the ER with RGO nano composites showed higher hydrophobicity in contact angle tests. In electrochemical experiments on Q235 substrates coated with the RGO‐IL/ER composite, enhanced barrier properties and excellent corrosion protection was found. A more hydrophobic interface was built, and the nano composite material of RGO‐IL was easy to prepare and cost efficient. We speculated that the presence of the ionic liquids also improves the dispersion properties of RGO in ER, and thereby further improving its barrier effect. In addition, the hydrophobic ionic liquid itself had a hindrance to water molecules and chloride ions. The highlight of our work is the combination of the corrosion inhibition of the hydrophobic ionic liquids with the barrier effect of RGO.

show abstract

Section: Resultsmentioning

confidence: 99%

Enhancing the Corrosion Resistance of Epoxy Coatings by Impregnation with a Reduced Graphene Oxide‐Hydrophobic Ionic Liquid Composite

Wang

Zhang

et al. 2018

ChemElectroChem

View full text Add to dashboard Cite

show abstract

“…The presence of water molecules at the coating-substrate interface may trigger electrochemical corrosion of a metal under the coating, leading to a decrease in adhesion strength and coating delamination. The barrier performance and permeability of organic coatings can be improved by the incorporation of inorganic fillers [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. For instance, Dhoke and co-workers [1] found that the addition of nano-ZnO on the alkyd-based waterborne coating can enhance the density of the coatings thereby reducing the transport paths for the corrosive electrolyte to pass through the coating system and hence reducing the corrosion process.…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization of Anticorrosion and Antifriction Properties for High Performance Polyurethane/Graphene Composite Coatings

2018

View full text Add to dashboard Cite

Abstract:This work contributes to the development and characterization of the corrosion resistance and antifriction properties of high performance polyurethane (PU)/graphene (Gr) composite coating. In this study, PU composite coatings containing 0, 2, 4 and 8 wt.% of Gr were prepared and evaluated using various corrosion and mechanical tests, namely electrochemical impedance spectroscopy, salt spray tests, cross-cut tape tests and dynamic mechanical analysis. Antifriction properties of the coatings were evaluated using a tribometer with a ball-on-disc mode at room temperature. The corrosion resistance and adhesion property of the PU coatings were found to be enhanced by adding 4 and 8 wt.% of Gr. The coefficient of friction revealed that the antifriction properties of the PU/Gr composite coatings were 61% lower than those of the conventional coating when the Gr content was increased to 8 wt.%.

show abstract

“…For instance, the preparation of polymers containing aromatic rings or alicyclic structures has attracted much attention because tremendous increase in chemical, mechanical, and thermal resistance is anticipated for such polymers [ 7 , 8 ]. The growing demand for high-performance polymers, particularly in the microelectronic, marine, and aerospace industries, has inspired the quest for aromatic and alicyclic polymers with intended applications as protective coatings, interlayer dielectrics, membrane materials, and optical components [ 9 , 10 , 11 , 12 , 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Ring-Forming Polymerization toward Perfluorocyclobutyl and Ortho-Diynylarene-Derived Materials: From Synthesis to Practical Applications

et al. 2021

Self Cite

View full text Add to dashboard Cite

Many desirable characteristics of polymers arise from the method of polymerization and structural features of their repeat units, which typically are responsible for the polymer’s performance at the cost of processability. While linear alternatives are popular, polymers composed of cyclic repeat units across their backbones have generally been shown to exhibit higher optical transparency, lower water absorption, and higher glass transition temperatures. These specifically include polymers built with either substituted alicyclic structures or aromatic rings, or both. In this review article, we highlight two useful ring-forming polymer groups, perfluorocyclobutyl (PFCB) aryl ether polymers and ortho-diynylarene- (ODA) based thermosets, both demonstrating outstanding thermal stability, chemical resistance, mechanical integrity, and improved processability. Different synthetic routes (with emphasis on ring-forming polymerization) and properties for these polymers are discussed, followed by their relevant applications in a wide range of aspects.

show abstract

Novel anti-corrosion coatings from rubber-modified polybenzoxazine-based polyaniline composites

Cited by 63 publications

References 74 publications

Enhancing the Corrosion Resistance of Epoxy Coatings by Impregnation with a Reduced Graphene Oxide‐Hydrophobic Ionic Liquid Composite

Enhancing the Corrosion Resistance of Epoxy Coatings by Impregnation with a Reduced Graphene Oxide‐Hydrophobic Ionic Liquid Composite

Development and Characterization of Anticorrosion and Antifriction Properties for High Performance Polyurethane/Graphene Composite Coatings

Ring-Forming Polymerization toward Perfluorocyclobutyl and Ortho-Diynylarene-Derived Materials: From Synthesis to Practical Applications

Contact Info

Product

Resources

About