Hybrid glass fibre reinforced composites with micro and poly-diallyldimethylammonium chloride (PDDA) functionalized nano silica inclusions

Santos, Júlio César dos; Vieira, Luciano Machado Gomes; Panzera, Túlio Hallak; Schiavon, Marco A.; Christoforo, A.L.; Scarpa, Fabrizio

doi:10.1016/j.matdes.2014.09.052

Cited by 41 publications

(32 citation statements)

References 24 publications

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“…This phenomenon is controversial in the literature, especially when micro-sized particles are considered. An increase in flexural stiffness and a reduction in strength and toughness are commonly reported 1,3,15,17,27,28 . In general, the mechanisms of improvement are attributed to the stiffening of the matrix phase and the shear interlocking effect.…”

Section: Introductionmentioning

confidence: 99%

“…This paper focuses on hybrid composites that combine synthetic fibres and micro-sized ceramic particles. The motivation of using micro rather than nanoparticles is the ability to spread easily over large surface areas with a constant concentration [1][2][3] . According to the literature, the incorporation of microparticles into fibrereinforced polymers (FRPs) can bring benefits to mechanical, tribological and thermal performances [4][5][6] .…”

Section: Introductionmentioning

confidence: 99%

“…The fracture energy is increased when the front of the crack becomes pinned by a rigid particle within the matrix phase in the interlaminar region [7][8] . The incorporation of rigid particles in the matrix phase makes it stiffer, affecting the stiffness of the composites 1,[7][8][9] . The amount of particles is extremely important to achieve a positive effect, since a large amount can reduce the contact with the surface and hinder the adhesion condition between the layers 3,8 .…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the stiffening mechanism based on micro-sized particle inclusions in laminated composites

et al. 2019

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Rigid particles have been incorporated into laminated composites, especially to enhance their bending performance attributed to the stiffening of the matrix phase (i) and the increased interlaminar shear resistance (ii). In order to better evaluate the improvement mechanism provided by the particulate inclusions, this work investigates the incorporation of micro-sized silica on the top, bottom and both surfaces of glass fibre laminates, mitigating the interference of the interlocking effect. Three-point bending, and impact tests are performed to evaluate the hybrid glass fibre composites containing 5, 7.5 and 10 wt% of micro silica. In addition, the effect of the micro silica particles into epoxy polymers is verified under tensile, compressive and abrasion tests. A finite element model is developed to simulate the three-point bending test and to better assess the behaviour of the composite laminate. Although silica particles lead to increased compressive modulus of the epoxy polymers, their positive effect on glass fibre composites under flexural loads is more evident when placed on the bottom side of the laminates subjected to the maximum tensile stress. The incorporation of 7.5 wt% silica microparticles at the bottom surface of the laminates achieves higher flexural strength and lower impact resistance.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of the stiffening mechanism based on micro-sized particle inclusions in laminated composites

et al. 2019

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“…Particular types of particle-reinforcement have been proposed in open literature, including hybridization through micro-scaled [5] and nano-scaled inclusions (i.e. carbon nanotubes, graphene sheets, alumina, titanium oxide and silica particles [6][7][8][9]. The mechanical enhancement of HFRCs has been attributed to the interaction between fibres and particle-reinforced polymer [10].…”

Section: Introductionmentioning

confidence: 99%

Hybrid glass fibre reinforced composites containing silica and cement microparticles based on a design of experiment

et al. 2017

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Hybrid Glass Fibre Reinforced Composites (HGRFCs) made with unidirectional glass fibres and silica or cement microparticles inclusions were investigated in order to improve their performance under flexural and impact loadings. Two full factorial designs were conducted to evaluate (i) the effect of the particle weight fraction on the compressive modulus of epoxy polymer (2 1 3 1) and (ii) the effect of the number of layers and type of particle (3 2) on the apparent density, flexural modulus and strength of HGFRCs. Composites with higher flexural properties were evaluated under impact loading via one-way analysis. TGA and FTIR analyses were used to verify the effect of ceramic particles within the polymeric phase. A microstructural analysis (SEM) was performed to verify the fracture mode and better assess the mechanical performance of HGFRCs.

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“…The use of glass fiber laminates as skins of sandwich composite provide benefits like best cost/benefit ratio between the reinforcements offered for manufacturing polymer composites 11 . Commonly glass fibers are used in applications that require an increase in strength, but not in high performance due to limitations comparing with carbon fibers 12 .…”

Section: Introductionmentioning

confidence: 99%

Effects of Amount of Glass Fiber Laminate Skins in Sandwich Composite of Filled Core

2018

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The purpose of this work is the study of the mechanical behavior of two different sandwich composite in static and fatigue analysis of three-point bending, using different amount of glass fiber laminated as skins, remaining with same total thickness. The specimens are composed of glass fiber cloth and epoxy resin. The static tests provided the mechanical properties used in numerical simulations as well as fatigue tests analysis. Applying controlled displacement, it was analyzed load reactions, lifetime and failure modes during fatigue tests. Identifying the failures modes in microscopic analyses it was perceived adhesive fracture in fiber/matrix as first damage and core rupture as ultimate damage.

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Hybrid glass fibre reinforced composites with micro and poly-diallyldimethylammonium chloride (PDDA) functionalized nano silica inclusions

Cited by 41 publications

References 24 publications

Evaluation of the stiffening mechanism based on micro-sized particle inclusions in laminated composites

Evaluation of the stiffening mechanism based on micro-sized particle inclusions in laminated composites

Hybrid glass fibre reinforced composites containing silica and cement microparticles based on a design of experiment

Effects of Amount of Glass Fiber Laminate Skins in Sandwich Composite of Filled Core

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