Cure kinetics, morphology development, and rheology of a high-performance carbon-fiber-reinforced epoxy composite

Mphahlele, Keletso; Ray, Suprakas Sinha; Колесников, А. В.

doi:10.1016/j.compositesb.2019.107300

Cited by 40 publications

(36 citation statements)

References 37 publications

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“…Thus, the mechanical performance of the produced composite laminate samples depends on great extent of the resin curing/cross-linking degree, as confirmed in [ 3 , 4 , 33 , 34 , 35 ]. In fact, as the curing degree increases, it is expected to have better interfacial strength between carbon fibers and resin and, therefore, an efficient stress transfer through the material.…”

Section: Resultsmentioning

confidence: 90%

“…Because of their physical and mechanical properties, thermosetting polymers cured with epoxy resins have found a broad range of applications, mainly as matrices in advanced composites for aircraft and automotive applications [ 1 , 2 , 3 , 4 , 5 ]. Some of major attributes of these materials are as follows: (i) excellent chemical resistance, particularly to alkaline environments; (ii) outstanding adhesion to a broad variety of substrates; (iii) high tensile, compressive, flexural, and fatigue strengths; (iv) low shrinkage; (v) excellent electrical insulation properties; (vi) good corrosion resistance; and (vii) ability to cure over a wide range of temperatures [ 4 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

“…Owing to the high reactivity of chemical species involved in the curing process, the reaction is highly exothermic; therefore, it is imperative that the polymerization process of epoxy resins must be carefully controlled in order to prevent that the released reaction heat can self-accelerate the process [ 2 , 4 ]. Several analytic techniques have been demonstrated to monitor the extent of the reaction to determine the curing degree of epoxy resins [ 2 , 3 , 4 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 ]. Among direct techniques, Fourier-transform infrared spectroscopy (FTIR) can be used to evaluate the concentration of one or more reactive groups as a function of time (during the curing process).…”

Section: Introductionmentioning

confidence: 99%

“…Some previous research works that study the curing process of epoxy resins using FTIR spectroscopy can be found in [ 2 , 7 , 9 , 15 , 16 , 17 , 18 , 19 ]. However, research works that focus on validating the epoxy resins processing parameters and their influence on the mechanical properties of parts fabricated for the aerospace sector are still scarce [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

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Influence of the Epoxy Resin Process Parameters on the Mechanical Properties of Produced Bidirectional [±45°] Carbon/Epoxy Woven Composites

et al. 2021

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This work focuses on investigating the curing process of an epoxy-based resin—Aerotuf 275-34TM, designed for aerospace applications. To study the curing degree of Aerotuf 275-34TM under processing conditions, woven carbon fiber fabric (WCFF)/Aerotuf 275-34TM composite laminates were produced by compression molding using different processing temperatures (110, 135, 160, and 200 °C) during 15 and 30 min. Then, the mechanical behavior of the composite laminates was evaluated by tensile tests and correlated to the resin curing degree through Fourier-transform infrared spectroscopy (FTIR) analysis. The results show the occurrence of two independent reactions based on the consumption of epoxide groups and maleimide (MI) double bonds. In terms of epoxide groups, a conversion degree of 0.91 was obtained for the composite cured at 160 °C during 15 min, while the measured tensile properties of [±45°] WCFF/Aerotuf 275-34TM laminates confirmed that these epoxy resin curing processing conditions lead to an enhancement of the composite mechanical properties.

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Section: Resultsmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of the Epoxy Resin Process Parameters on the Mechanical Properties of Produced Bidirectional [±45°] Carbon/Epoxy Woven Composites

et al. 2021

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“…For example, it was found that water contained in fillers may cause an acceleration of the resin/hardener reaction [32]. On the other hand, for some epoxy resins, the heat treatment is necessary to achieve the properties required in aviation [33,34].…”

Section: Wpływ Wygrzewania Na Sieciowanie żYwicy Epoksydowej Przeznacmentioning

confidence: 99%

The effect of the heat treatment on the crosslinking of epoxy resin for aviation applications

Mucha¹,

Sterzyński

Krzyżak³

2020

Polimery

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We have investigated the MGS L285 epoxy laminating resin system, used in aviation applications. A number of tests were carried out, namely Dynamic Mechanical Analysis (DMA), Differential Scanning Calorimetry (DSC), tensile testing, three-point bending flexural testing, Charpy impact testing, Shore D hardness, density measurements and Fourier-Transform Infrared spectroscopy (FT-IR). Moreover, the tensile toughness U TT , the brittleness B and the linear isobaric thermal expansivity α L were calculated. The samples were subjected to heat treatment in the temperatures of 50, 60 and 80°C for 15 hours or were stored in room temperature. Glass transition temperature, hardness, density as well as other properties were observed to rise along with the increasing heat treatment temperature, suggesting the validity of applications of Voronoi-Delaunay structural analysis to polymer science. On the other hand, properties such as brittleness, toughness and impact strength exhibited a non-linear course of changes as a function of the heating temperature.

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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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Cure kinetics, morphology development, and rheology of a high-performance carbon-fiber-reinforced epoxy composite

Cited by 40 publications

References 37 publications

Influence of the Epoxy Resin Process Parameters on the Mechanical Properties of Produced Bidirectional [±45°] Carbon/Epoxy Woven Composites

Influence of the Epoxy Resin Process Parameters on the Mechanical Properties of Produced Bidirectional [±45°] Carbon/Epoxy Woven Composites

The effect of the heat treatment on the crosslinking of epoxy resin for aviation applications

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

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