Effect of rubber modification on fracture toughness properties of glass reinforced hot cured epoxy composites

Dadfar, Mohammad Reza; Ghadami, F.

doi:10.1016/j.matdes.2012.12.035

Cited by 123 publications

(69 citation statements)

References 21 publications

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“…Thus relatively less energy required during tensile fracturing of epoxy composites. A similar SEM micrograph image for epoxy composites was also reported by other researchers (Dadfar and Ghadami 2013;Quan and Ivankovic 2015). The SEM micrographs of 1%, 3%, and 5% nano OPEFB/epoxy nanocomposites are shown in Figs.…”

Section: Scanning Electron Microscopy (Sem)supporting

confidence: 84%

Fabrication of Epoxy Nanocomposites from Oil Palm Nano Filler: Mechanical and Morphological Properties

et al. 2016

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The aim of this research was to fabricate epoxy nanocomposites by utilizing the developed nano filler from oil palm mills agricultural wastes oil palm empty fruit bunch (OPEFB) fibers for advanced applications. Epoxy-based polymer nanocomposites were prepared by dispersing 1, 3, and 5 wt. % nano OPEFB filler by using a high speed mechanical stirrer through hand lay-up technique. The mechanical (tensile and impact) properties and morphological properties of nano OPEFB/epoxy nanocomposites were examined and compared. Morphological properties were analyzed by transmission electron microscopy (TEM) and scanning electron microscopy (SEM) to look at the dispersion of the nano OPEFB filler in the epoxy matrix. The tensile and impact properties of nanocomposites increased until 3% nano filler loading, but beyond 3% they decreased. Overall mechanical properties reached maximum values for 3% loading, due to better stress transfer owing to homogenous dispersion of nano OPEFB filler within epoxy matrix. The observed results were also confirmed by SEM and TEM micrographs.

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Section: Scanning Electron Microscopy (Sem)supporting

confidence: 84%

Fabrication of Epoxy Nanocomposites from Oil Palm Nano Filler: Mechanical and Morphological Properties

et al. 2016

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“…by using dendritic hyper branched polymers [4], or by adding additional components to the epoxy resin, e.g. mixing in rubber particles or creating specific thermoplastic phase morphologies in the matrix [5][6][7][8][9][10][11][12]. Although creating a rubbery phase inside of the epoxy matrix often increases the fracture toughness of the laminates, this increase is often accompanied with a decrease in other mechanical properties such as stiffness and strength.…”

Section: Introductionmentioning

confidence: 99%

Interlaminar toughening of resin transfer moulded glass fibre epoxy laminates by polycaprolactone electrospun nanofibres

Heijden

Daelemans

Schoenmaker

et al. 2014

Composites Science and Technology

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Delamination and brittle matrix fracture has since long been a problem of fibre reinforced composites. This paper investigates if polycaprolactone (PCL) nanofibre nonwovens can increase the interlaminar fracture toughness of resin transfer moulded glass fibre/epoxy laminates, without causing problems during impregnation and without negatively affecting other (mechanical) properties.The mode I fracture toughness was shown to be dependent on both the nanofibre content as well as on how the nanofibres were introduced into the laminates. Almost 100% improvement in fracture toughness could be achieved by electrospinning the PCL nanofibres on both sides of the glass fibre mats prior to impregnation. This led to a mode I fracture toughness of over 1200 J/m 2 . 2Tensile and dynamic mechanical properties of the toughened laminates were not affected by the PCL nanofibres. It could be concluded that even state of the art infusion resins with a high intrinsic fracture toughness can benefit significantly from nanofibre toughening.

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“…The addition of fillers to epoxy adhesive does not produce a definite improvement or deterioration in the impact strength (Dadfar and Ghadami 2013;Kejval and Müller 2013;Müller 2015). Rahman et al (2014) stated that the tensile strength was decreased, whereas the modulus of elasticity and the Charpy impact strength were increased with increasing content of jute fibres.…”

Section: Resultsmentioning

confidence: 99%

Strength Characteristics of Untreated Short-fibre Composites from the Plant Ensete ventricosum

Müller¹,

Valášek²,

Ruggiero³

2016

BioResources

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The plant Ensete ventricosum is used in agriculture in Africa. It is a source of fibres, which can be used in the interaction with polymers. This study deals with a material utilization of these fibres with a length of 1 to 2 mm, 2 to 3 mm, and 3 to 5 mm, together with reactoplastics resin ChS Epoxy 1200/324, following requirements of developing countries. Some areas of the African continent suffer from a lack of wood, and material based on epoxy and fibres can substitute for many wood products. The aim of this experiment was to describe basic mechanical properties (tensile strength σm, strain at the break εb, modulus of the elasticity Et, and impact strength an) of the composite material reinforced with fibres of the false banana plant, Ensete ventricosum. The plant, which originated in Ethiopia, is exploitable in developing countries. Geometrical aspects and morphology of the used fibres was characterized by scanning electron microscopy (SEM). The addition of fibres increased the modulus of elasticity and the impact strength, whereas the tensile strength and the strain at break were decreased.

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Effect of rubber modification on fracture toughness properties of glass reinforced hot cured epoxy composites

Cited by 123 publications

References 21 publications

Fabrication of Epoxy Nanocomposites from Oil Palm Nano Filler: Mechanical and Morphological Properties

Fabrication of Epoxy Nanocomposites from Oil Palm Nano Filler: Mechanical and Morphological Properties

Interlaminar toughening of resin transfer moulded glass fibre epoxy laminates by polycaprolactone electrospun nanofibres

Strength Characteristics of Untreated Short-fibre Composites from the Plant Ensete ventricosum

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