Improved mechanical properties of an epoxy glass–fiber composite reinforced with surface organomodified nanoclays

Withers, G.J.; Yu, Ye; Khabashesku, VN; Cercone, Larry; Hadjiev, V. G.; Souza, J.M.; Davis, Daniel Cochece

doi:10.1016/j.compositesb.2014.12.008

Cited by 131 publications

(64 citation statements)

References 29 publications

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“…Also, nanoclay addition leads to an increase in the 'cross-linking density' of epoxy, giving rise to increased toughness and fiber-matrix interface toughness [13,14]. Adding nanoclay guarantees a more significant load transfer to a load-bearing constituent, i.e., glass fiber, by improving the interfacial bonding and preventing the spread out of interfacial crack [7,15].…”

Section: Glass Fiber Epoxy-nanoclay Composites (Gfencs)mentioning

confidence: 99%

Hygrothermal chamber aging effect on mechanical behavior and morphology of glass fiber-epoxy-nanoclay composites

Shettar

Kini

Sharma

et al. 2020

Mater. Res. Express

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This work examines the impact of artificial aging on tensile and flexural behavior of epoxy-nanoclay composites (ENCs) and glass fiber-epoxy-nanoclay composites (GFENCs) in the hygrothermal chamber. Epoxy-nanoclay composites made by a general-casting technique, and GFENCs are made by hand layup technique. The specimens are aged in the hygrothermal chamber for 180 days at 40°C with 60% RH. The results revealed that an increase in nanoclay and glass fiber weight percentage enhanced the mechanical behavior of GFENCs. The aging of the sample has a negative influence on the composite materials. But, the increase in nanoclay and glass fiber weight percentage has diminished the impact of aging on the mechanical behavior of composites. SEM micrographs revealed the reason for the failure and influence of aging conditions.

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Section: Glass Fiber Epoxy-nanoclay Composites (Gfencs)mentioning

confidence: 99%

Hygrothermal chamber aging effect on mechanical behavior and morphology of glass fiber-epoxy-nanoclay composites

Shettar

Kini

Sharma

et al. 2020

Mater. Res. Express

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“…A few publications could be found on the adhesion of nanofilled systems to the reinforcing fibers and on the final properties of the nanofilled reinforced plastics , but the number of such papers is growing . Two groups of factors should be taken into account when considering the probable effect of the nanofillers on the matrix adhesion to the reinforcing fiber: those influencing formation and debonding of adhesion joints.…”

Section: Introductionmentioning

confidence: 99%

Epoxy nanocomposites as matrices for aramid fiber‐reinforced plastics

et al. 2017

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Rheological and mechanical properties of nanofilled epoxy resin were studied, including adhesion to aramid fibers and strength of impregnated aramid strands. Light scattering and rheological measurements data imply that nanodiamonds (NDs) and multiwall carbon nanotubes form stable nanosized agglomerates in epoxy resin, whereas for epoxy‐organomodified montmorillonite systems, individual clay platelets orientation might be present. Also, according to the rheology of these systems, formation of the networks of epoxy molecules adsorbed on the NDs particle surface is suggested. Increase in the viscosity of the epoxy oligomers due to the nanoparticles incorporation results in the worsening of the impregnation of the aramid fibers by these formulations. However, enhanced adhesion properties could be obtained when using nanofillers, with a maximum at 1–2 wt% of nanofillers. A 25–35% growth of the pull‐out adhesion strength is also achieved. Increased cohesive strength and decreased residual stresses are supposed to be the reasons of adhesion strength decrease according to the literature. Adhesion strength increase was accompanied by a 10% enhancement of the strength of impregnated aramid strands. Moreover, a notable effect—up to a fourfold increase—was observed for the impact toughness of epoxy‐nanofillers samples. POLYM. COMPOS., 39:E2167–E2174, 2018. © 2017 Society of Plastics Engineers

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“…The author considered that the acoustic emission historic index is the most effective AE parameter in detecting damage initiation. The AE count and energy were used to determined damage mode of 3-D woven composite during fatigue process [11][12][13][14][15][16][17][18][19][20][21]. Based on above studies, we can conclude that the AE technology is an effective method of detection of composite damage.…”

Section: Introductionmentioning

confidence: 94%

“…As far as the poor binding force between glass fiber and epoxy, more and more researchers attempt to improve the interfacial binding force by means of modification. The mechanical behavior of glass fiber composite could be increased by applying nanoclay modification [14,15]. Jiang et al [6] modified the 3-D orthogonal woven composite with silane couple agent and improved tensile and bending behavior.…”

Section: Introductionmentioning

confidence: 99%

Fatigue behavior of 3-D orthogonal woven composite with silane modification

Zhang

Gao

Tao

2020

Mater. Res. Express

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As key part in wind turbine, the blade is a vital component for energy transformation. Fiber reinforced composite has advantage of light weight, large specific strength and specific stiffness, which has been used in wind turbine blade. In order to avoid delamination of conventional laminate and debonding between fiber and epoxy, the silane modification composite specimen reinforced with 3-D orthogonal woven fabric/epoxy was prepared using vacuum assisted resin transfer molding (VARTM) for blade. As for fatigue experiment, the critical stress levels corresponding to micro-crack initiation and failure of composite were obtained by combining of acoustic emission technology and quasi-bending experiment. The fatigue behavior of 3-D orthogonal woven composite with silane modification was experimental evaluated based on the minimum and maximum stress levels. The fatigue behavior, such as S-N curve, stress-strain behavior and stiffness degradation behavior were analyzed. The result will provide the basis for investigation of bending behavior with nondestructive tests and set of stress level in bending fatigue experiment.

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Improved mechanical properties of an epoxy glass–fiber composite reinforced with surface organomodified nanoclays

Cited by 131 publications

References 29 publications

Hygrothermal chamber aging effect on mechanical behavior and morphology of glass fiber-epoxy-nanoclay composites

Hygrothermal chamber aging effect on mechanical behavior and morphology of glass fiber-epoxy-nanoclay composites

Epoxy nanocomposites as matrices for aramid fiber‐reinforced plastics

Fatigue behavior of 3-D orthogonal woven composite with silane modification

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