Author Correction: Epoxy toughening through high pressure and shear rate preprocessing

Zapico, G. Fernández; Ohtake, Naoto; Akasaka, Hiroki; Muñoz-Guijosa, Juan Manuel

doi:10.1038/s41598-019-55967-1

Cited by 4 publications

(2 citation statements)

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“…4 Unfortunately, this attribute triggers the formation and spread of microcracks and defects while being processed and utilized, ultimately resulting in material breakdown and drastically reducing the lifespan of electronic equipment. 5 Moreover, accompanied by the miniaturization of power electronic equipment and components, insulating materials are required to withstand higher electric field intensity. 6 If the applied voltage surpasses the electrical breakdown strength of the materials, various forms of electrical damage can occur to the resin.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the healability and degradability of epoxy via synergetic steric and electron-withdrawing effects for green electrical packaging

Zhang,

Sun,

Guo

et al. 2024

J. Mater. Chem. A

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Section: Introductionmentioning

confidence: 99%

Enhancing the healability and degradability of epoxy via synergetic steric and electron-withdrawing effects for green electrical packaging

Zhang,

Sun,

Guo

et al. 2024

J. Mater. Chem. A

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“…Several toughening mechanisms for epoxy resins were observed in nanocomposites [14] or elastomer-modified epoxy resins [15], as reviewed before [16]. Eventual preprocessing of the epoxy under high pressure and shear rates [17] or controlled thermal curing [18] was able to improve the fracture toughness as a result of an increase in polymer chain length together with a reduction in crosslinking density.…”

Section: Introductionmentioning

confidence: 99%

Benchmark Study of Epoxy Coatings with Selection of Bio-Based Phenalkamine versus Fossil-Based Amine Crosslinkers

2023

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The phenalkamines (PK) derived from cardanol oil can be used as a bio-based crosslinker for epoxy coatings as an alternative for traditional fossil amines (FA). First, the reaction kinetics of an epoxy resin with four PK and FA crosslinkers are compared by differential scanning calorimetry, illustrating a fast reaction rate and higher conversion of PK at room temperature in parallel with a moderate exothermal reaction. Second, the performance of coatings with various concentrations of PK and PK/FA ratios indicates good mixing compatibility between crosslinkers resulting in higher hardness, scratch resistance, hydrophobicity, and abrasive wear resistance of coatings with PK. The superior performance is confirmed over a broad range of resin/crosslinker ratios, facilitating the processing with viscosity profiles depending on the PK type. Although fossil- and bio-based crosslinkers have different chemical structures, the unique linear relationships between intrinsic mechanical properties (i.e., ductility and impact resistance) and coating performance indicate that the degree of crosslinking is a primary parameter controlling coating performance, where PK simultaneously provides high hardness and ductility. In conclusion, the optimization of the processing range for bio-based PK as a crosslinker for epoxy coatings delivers suitable processing conditions and superior mechanical performance compared to traditional amine crosslinkers.

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Unveiling Spinodal Decomposition‐Driven Phase Separation of Cellulose Nanofibrils‐Reinforced Nanoemulsion Films for In Situ Thermoset Curing

Park

Seo

Lee

et al. 2020

Adv Materials Inter

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Herein, a temperature‐responsive nanoemulsion film (NEF) system is introduced with spinodal decomposition for in situ thermoset curing. The NEFs, fabricated by alternate layering of nanoemulsion droplets with bacterial cellulose nanofibrils (BCFs) and polyelectrolytes through the layer‐by‐layer (LbL) deposition, show ≈32% increase in Young's modulus compared with those fabricated with polyelectrolytes only. It is determined that such reinforcement stemmed from the presence of BCFs that form fibrillary layers in the NEF matrix. The BCF‐reinforced NEFs show the unprecedented spinodal decomposition behavior; nanoemulsion droplets uniformly dispersed in the NEF network and readily interdiffused to produce microscale oil domains with controlled phase separation rate as well as oil domain size. The insight gained from the thin film‐based microphase separation behavior confirms that NEFs layered with epoxy resin nanoemulsions are materials with promising temperature‐responsive in situ thermoset curing performance.

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Author Correction: Epoxy toughening through high pressure and shear rate preprocessing

Abstract: An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Cited by 4 publications

References 0 publications

Enhancing the healability and degradability of epoxy via synergetic steric and electron-withdrawing effects for green electrical packaging

Enhancing the healability and degradability of epoxy via synergetic steric and electron-withdrawing effects for green electrical packaging

Benchmark Study of Epoxy Coatings with Selection of Bio-Based Phenalkamine versus Fossil-Based Amine Crosslinkers

Unveiling Spinodal Decomposition‐Driven Phase Separation of Cellulose Nanofibrils‐Reinforced Nanoemulsion Films for In Situ Thermoset Curing

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