Study on the interfacial interactions of sulfated alumina with epoxy polymer

Sitnikov, Petr А.; Vaseneva, Irina N.; Belyy, V.A.; Kenzhin, Roman M.; Volodin, Alexander M.; Vedyagin, Aleksey A.

doi:10.1016/j.ceramint.2019.01.223

Cited by 4 publications

(5 citation statements)

References 37 publications

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“…A third group of interactions taken into account in the adsorption theory are acid-base interactions. This was first proposed by Fowkes [91] and are considered to play the main role in the adhesive bond formation within the adsorption theory [92]. Acid-base interactions occur between an interfacial donor and acceptor of an electron pair.…”

Section: Adhesionmentioning

confidence: 94%

“…Of particular interest among the acid-base interactions are the so-called hydrogen bonds. They have been identified as the most important contribution to adhesion between aluminum oxide and polymeric resins, in particular epoxy resins [83,92]. Hydrogen bonds are thought to form between the hydroxyl groups of the epoxy resin and the available hydroxyl groups on the aluminum oxide surface.…”

Section: Adhesionmentioning

confidence: 99%

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A Review on Anodizing of Aerospace Aluminum Alloys for Corrosion Protection

et al. 2020

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Aluminum alloys used for aerospace applications provide good strength to weight ratio at a reasonable cost but exhibit only limited corrosion resistance. Therefore, a durable and effective corrosion protection system is required to fulfil structural integrity. Typically, an aerospace corrosion protection system consists of a multi-layered scheme employing an anodic oxide with good barrier properties and a porous surface, a corrosion inhibited organic primer, and an organic topcoat. The present review covers published research on the anodic oxide protection layer principles and requirements for aerospace application, the effect of the anodizing process parameters, as well as the importance of process steps taking place before and after anodizing. Moreover, the challenges of chromic acid anodizing (CAA) substitution are discussed and tartaric-sulfuric acid anodizing (TSA) is especially highlighted among the environmentally friendly alternatives.

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Section: Adhesionmentioning

confidence: 94%

Section: Adhesionmentioning

confidence: 99%

A Review on Anodizing of Aerospace Aluminum Alloys for Corrosion Protection

et al. 2020

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“…[24][25][26] The mechanical properties of particle reinforced polymer composites mainly depend on the mechanical properties and size of the particles, as well as the particle/matrix interface. 27 The fracture toughness of the fiber reinforced composite is significantly enhanced after filled with alumina particles under different temperature conditions (À15 to 100 C). 28 When 10 wt% of alumina particles are filled, the fracture toughness value increases by 36.1%.…”

Section: Introductionmentioning

confidence: 96%

“…Inorganic particles have much higher stiffness than the polymer matrix and can improve the stiffness, water resistance, dimensional stability, and shrinkage reduction of the composite 24–26 . The mechanical properties of particle reinforced polymer composites mainly depend on the mechanical properties and size of the particles, as well as the particle/matrix interface 27 . The fracture toughness of the fiber reinforced composite is significantly enhanced after filled with alumina particles under different temperature conditions (−15 to 100°C) 28 .…”

Section: Introductionmentioning

confidence: 99%

Viscoelastic behavior of jute fiber reinforced composite filled with ceramic particles after water aging

Zhang

Yang

et al. 2023

Polymer Composites

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Due to the special multi‐layered structure of plant fiber, jute fiber reinforced composite is sensitive to water. Its mechanical properties will be significantly decreased after water aging. In this paper, alumina ceramic particles are added into jute fiber reinforced composite to improve its water aging resistance and viscoelastic properties. Effects of temperature, vibration frequency and loading time on the viscoelastic properties of the composite before and after water aging are measured. Reversible and irreversible performances degradation caused by water aging is investigated. The results show that ceramic particles can effectively improve the viscoelastic properties of the composite. The storage modulus and relaxation modulus of the composite increase with the particle content, but the strength decreases due to the stress concentration caused by the particles. Therefore, filler content between 10%–30% is more suitable. It is also noticed that its mechanical properties partially recover after redry. Plasticization of the matrix can be reversed after water is removed, but hydrolysis of the matrix and interface damage are irreversible. In addition, a practical Fractional Differential Kelvin Model is established to predict the viscoelastic behavior of jute fiber reinforced composite filled with alumina ceramic particles, and the fitting results agree well with test data.

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“…due to their low cost and weight, high specific strength, ease of processing, and resistance to decomposition under various conditions. 1–11 Since the last two decades, efforts have been made to enhance the strength of fiber-reinforced polymer composites by incorporating nanomaterials to widen the spectrum of their applications. 12–14 Amongst the various nano-fillers for polymer nanocomposites (nanoclay/silicate platelets, carbon nanotubes, Kevlar nanofibers, silica nanoparticles etc.…”

Section: Introductionmentioning

confidence: 99%

Addition of compatibilized nanoclay to GFRCs for improved izod impact strength and tensile properties

Shelly

Nanda

Mehta

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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This research examines the effect of nanoclay silanization/compatibilization on the izod impact strength and tensile properties of epoxy-clay-based glass fiber reinforced composites (GFRCs). As per the existing literature, a key step in silanization of clay is washing of the silanized clay with acetone to remove the excess of silane molecules. However, contrary to this, the present research shows that acetone washing of the silanized clay lowers the tensile properties. GFRCs containing 2 phr nanoclay were processed. Three different montmorillonite clays were used in the initial investigations (two organically modified nanoclays designated as “CA” and “IE” and one unmodified nanoclay designated as “PG”). Silane concentration was varied in the range of 100–400% as proportion of nanoclay loading (i.e. 1X, 2X, 3X, and 4X). Silanization was validated by FTIR. XRD/TEM revealed increased d-spacing for silanized nanoclay and a partially exfoliated clay morphology in GFRCs. Highest izod impact strength (37% higher than the reference GFRC) without any loss in tensile properties was observed for GFRC reinforced with acetone washed 2X silanized “PG” nanoclay. GFRCs reinforced with silanized unwashed nanoclay (3X) showed 27% improvement in izod impact strength with significantly improved tensile strength (16% higher than the reference sample).

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Study on the interfacial interactions of sulfated alumina with epoxy polymer

Cited by 4 publications

References 37 publications

A Review on Anodizing of Aerospace Aluminum Alloys for Corrosion Protection

A Review on Anodizing of Aerospace Aluminum Alloys for Corrosion Protection

Viscoelastic behavior of jute fiber reinforced composite filled with ceramic particles after water aging

Addition of compatibilized nanoclay to GFRCs for improved izod impact strength and tensile properties

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