Improved fracture toughness and fatigue life of carbon fiber reinforced epoxy composite due to incorporation of rubber nanoparticles

Phong, Nguyen Tien; Gabr, Mohamed H.; Anh, Le Hoai; Duc, Vu Minh; Betti, Andrea; Okubo, Kimihiro; Bui, Chuong; Fujii, Toru

doi:10.1007/s10853-013-7400-z

Cited by 31 publications

(13 citation statements)

References 30 publications

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“…Numerous research efforts in this field have focused on the incorporation of nano-fillers to greatly enhance their physical, mechanical, and chemical properties in various polymer matrices, including epoxy, polypropylene, polyethylene, polyimide, polystyrene, poly(methyl methacrylate), and so on. 1 –5 Most research results revealed a great improvement in polymer properties by addition of a small amount of nano-filler (<5 wt%). Important factors that can affect the physical and mechanical properties of nano-filler-reinforced polymer nanocomposites include nano-filler type, filler loading levels, and processing.…”

Section: Introductionmentioning

confidence: 99%

Mechanical, thermal, and interfacial shear properties of polyamide/nanoclay nanocomposites

Gabr

Uzawa

2017

Journal of Thermoplastic Composite Materials

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There are increasing interests in using thermoplastics to replace thermosets to laminate fabrication due to their advantages such as high toughness, shorter manufacturing cycles, and reprocessing possibilities. The aim of the current study is to select appropriate thermoplastic nanocomposites, which fit the requirements of carbon fiber (CF) composites in the automotive industry. In order to achieve the target, this research has investigated the effect of nanoclay on the mechanical, thermal, and interfacial properties with de-sized CF of polyamide (PA6) composites. PA6/clay composites were characterized by different properties, namely, bending, tensile, impact, heat distortion temperature, interfacial shear stress, and scanning electron microscope. The micromechanism of plastic deformation after bending failure of PA6-clay nanocomposites is examined with different contents of nanoclay to correlate the microstructures with the mechanical properties. The results revealed that with 3% organo-clay filler content, flexural strength and modulus improved significantly by 42% and 52%, respectively, which could be explained by scanning electron microscopy images that show rougher fracture surface with adding clay into the PA6 matrix. The increased surface roughness implies that the path of the crack tip is distorted because of the silicate nano-layer, making crack propagation more difficult. The interfacial shear strength for 1 wt% of nanoclay was about the same as the neat PA6 but decrease dramatically with increasing contents of nanoclay.

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Section: Introductionmentioning

confidence: 99%

Mechanical, thermal, and interfacial shear properties of polyamide/nanoclay nanocomposites

Gabr

Uzawa

2017

Journal of Thermoplastic Composite Materials

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“…Qi et al [8] observed an improvement of the Izod impact strength of epoxy by 80% when dispersing 12 phr of nano acrylonitrile butadiene rubber. Phong et al [9] observed a 70% increase in the mode I interlaminar fracture toughness of CFRP using epoxy matrix modified with 35 nm core-shell nano rubber at crack initiation. Fan et al [10] evaluated the mechanical properties of nano rubber toughened epoxy resin and observed an improvement of 96% in Izod impact strength adding 12 phr of nano carboxylic nitrile butadiene rubber.…”

Section: Introductionmentioning

confidence: 99%

Toughening of carbon fibre reinforced polymer composites with rubber nanoparticles for advanced industrial applications

Özdemir¹,

Zhang²,

Aspin³

et al. 2016

Express Polym. Lett.

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Abstract. This study investigates the effects of nano carboxylic acrylonitrile butadiene rubber (CNBR-NP) and nano acrylonitrile butadiene rubber (NBR-NP) on the interlaminar shear strength and fracture toughness of carbon fibre reinforced polymer composites (CFRP) with dicyandiamide-cured epoxy matrix. The results show that nano-size dispersion of rubber significantly improved the Mode I delamination fracture toughness (G IC ) of the CFRP by 250% and its Mode II delamination fracture toughness (G IIC ) by 80% with the addition of 20 phr of CNBR-NP. For the NBR-NP system, the G IC and G IIC delamination fracture toughness of the CFRP were increased by 200 and 80% respectively with the addition of 20 phr (parts per hundred rubber) of nano rubber to the matrix. Scanning electron microscopy (SEM) images of the fracture surface revealed that the toughening was mainly achieved by debonding of the nano rubber, crack path deflection and fibre bridging.

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“…Due to the brittle nature of highly cross‐linked epoxy resins, scientists have been toughening the formulations with nano‐ and micron‐sized elastomeric particulates for more than 20 years. The addition of nanorubber to improve the fracture toughness of the epoxy matrix has been demonstrated by previous researchers …”

Section: Introductionmentioning

confidence: 85%

Rheological properties, cure characteristics, and morphology of acrylonitrile‐based nanorubber modified epoxy

Özdemir

Zhang

Hadavinia

et al. 2015

J of Applied Polymer Sci

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This article investigates the effects of nano carboxylic acrylonitrile butadiene rubber (CNBR-NP) and nano acrylonitrile butadiene rubber (NBR-NP) on the rheological properties and cure characteristics of epoxy. Dynamic mechanical behavior of carbon fiber reinforced polymer composites (CFRP) with the nanorubber-modified matrices was also studied. Rheological study showed that NBR-NP blends attained lower viscosity in comparison to CNBR-NP blends and both systems exhibited shear-thinning behavior. Scanning electron microscopy (SEM) images revealed that CNBR-NP could be dispersed evenly within the epoxy matrix using industrial mixing process whereas partial agglomeration was observed in NBR-NP blends. The dynamic mechanical analysis (DMA) data showed that the addition of nanorubber has negligible effect on the glass transition temperature of the epoxy. The difference in the dispersion ability of these two nanorubbers in epoxy is related to the difference in van der Waals forces between single nanoparticles, the chemical formula and the polarity of the systems.

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Improved fracture toughness and fatigue life of carbon fiber reinforced epoxy composite due to incorporation of rubber nanoparticles

Cited by 31 publications

References 30 publications

Mechanical, thermal, and interfacial shear properties of polyamide/nanoclay nanocomposites

Mechanical, thermal, and interfacial shear properties of polyamide/nanoclay nanocomposites

Toughening of carbon fibre reinforced polymer composites with rubber nanoparticles for advanced industrial applications

Rheological properties, cure characteristics, and morphology of acrylonitrile‐based nanorubber modified epoxy

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