Preparation of modified montmorillonite/graphene oxide composites to enhance the anticorrosive performance of epoxy coatings

Producing structures, which have composite features (high strength and stiffness with low density) and metal properties (high toughness and deformability), was the idea, which resulted to introduce the fiber metal laminates (FMLs) as new advanced materials. [1] In these materials, the metals and composites can stick to each other by using polymeric adhesive agents. In most cases, the metals are used as the skins and the composites as the core of these structures. [2] The adhering can be done by the same used resin into the composite section or using another adhesive agent. The carbon-reinforced aluminum laminate (CARALL), [3] aramid-reinforced aluminum laminate (ARALL), [4] and glass laminate aluminum-reinforced epoxy (GLARE) [5] are the most favorable FMLs, which are reinforced by carbon, aramid, and glass fibers, respectively. Although these famous structures can respond to all mechanical properties, however, environmental issues like recycling these structures are one of the important limitations of FMLs.Although many attempts have been done to reduce these limitations, however, after recycling, most of the fibers lose their initial mechanical properties. [6] For this reason, other types of fibers like mineral or plant-based fibers have been developed to use in the composite core of FMLs. [7] One of the suitable fibers for this purpose can be basalt fibers. The comparison between the mechanical properties of basalt and glass fibers was done by Deák and Czigány. [8] The reported results in this work showed that tensile strength, elastic modulus, and strain at the breaking of basalt fibers (Kamenny Vek Co., Russia) were 2016 MPa, 61.9 GPa, and 3.56%, respectively, whereas these properties in glass fibers (Skoplast Ltd., Slovakia) were 1472 MPa, 57 GPa, and 2.71%, respectively. This shows that basalt fibers have higher mechanical properties than glass fibers. Also, the production costs of basalt fibers are lower than carbon fibers. [9] The higher thermal stability and environment friendliness are other features of basalt fibers. [10] Having these features encouraged the researchers to use these fibers in various novel FMLs. For example, Ferrante et al. [11] characterized the impact properties of basalt fibers/aluminum FML through a low-velocity impact test. In another interesting work, Medjahed et al. [12] fabricated the FML with the basalt fibers/phthalonitrile composite and an Al-Li alloy. Then, they characterized the mechanical and gamma-ray shielding performances of this FML.In the admirable work, Mottaghian et al. [13] used the FMLs as the skin of polyurethane-based sandwich panels to enhance the postbuckling performance of sandwich structures. It is worth noting that the hybrid basalt-glass fibers/epoxy composite as core and steel or magnesium metals as skins were used in these FMLs. Introducing basalt-flax fibers/titanium as a new kind of

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“…It seems that the effect of exfoliation and intercalation of nanoclay particles had important roles in these improvements. [35,36]…”

Section: Mechanical Investigationsmentioning

confidence: 99%

The Effect of Hybridizing Natural Fibers and Adding Montmorillonite Nanoparticles on the Impact and Bending Properties of Eco‐Friendly Metal/Composite Laminates

Mirzamohammadi

Eslami‐Farsani

Ebrahimnezhad‐Khaljiri

2023

Adv Eng Mater

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“…Hua et al used (3-aminopropyl)-tri-ethoxy-silane (APTES) as a coupling agent to couple graphene oxide with nano-MMT. The polar effect of the APTES group helped to improve the dispersion of the nanomaterials in the epoxy-resin coating [ 29 ]. Nevertheless, with increasing concern for environmental protection, a great deal of research has turned to bio-based materials for the modification of MMT.…”

Section: Introductionmentioning

confidence: 99%

Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy Resin

Lan

Wei

et al. 2023

Molecules

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As an important thermosetting material, flame-retardant epoxy resin has various applications in the aerospace, chemical, and electronics industry, and other fields. However, the flame retardancy of epoxy resins is often improved at the expense of mechanical performance. The contradiction between flame retardancy and mechanical properties seriously impedes the practical applications of epoxy resin (EP). Herein, iron-loaded polydopamine functionalized montmorillonite (D-Mt-Fe3+), which was prepared by dopamine, iron chloride and montmorillonite in an aqueous solution, was introduced to prepare iron-loaded polydopamine functionalized montmorillonite/epoxy resin composites (D-Mt-Fe3+/EP). As expected, D-Mt-Fe3+/EP-10 with 10 phr of D-Mt-Fe3+ passed the UL-94 V-0 rating, achieved a limiting oxygen index (LOI) value of 31.0% and reduced the smoke production rate (SPR) and total smoke production (TSP), indicating that the introduction of D-Mt-Fe3+ could endow EP with satisfactory flame retardancy through the radical scavenging function of dopamine in the gas phase and the catalytic charring effect of iron ions, respectively. Encouragingly, the mechanical property was also enhanced with the flexural strength increased by 25.5%. This work provided an attractive strategy for improving both the mechanical properties and fire resistance of EP, which greatly broadened their applications in the chemical industry and electronics field, etc.

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Insight into the aminosilane functionalized-montmorillonite/Pebax mixed matrix membranes with selectively fast gas transport channels for CO2 permeation

Jiang,

Wu,

Zhang

2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Preparation of modified montmorillonite/graphene oxide composites to enhance the anticorrosive performance of epoxy coatings

Cited by 8 publications

References 37 publications

The Effect of Hybridizing Natural Fibers and Adding Montmorillonite Nanoparticles on the Impact and Bending Properties of Eco‐Friendly Metal/Composite Laminates

The Effect of Hybridizing Natural Fibers and Adding Montmorillonite Nanoparticles on the Impact and Bending Properties of Eco‐Friendly Metal/Composite Laminates

Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy Resin

Insight into the aminosilane functionalized-montmorillonite/Pebax mixed matrix membranes with selectively fast gas transport channels for CO2 permeation

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