Improvements in mechanical and thermo-mechanical properties of e-glass/epoxy composites using amino functionalized MWCNTs

Rahman, Muhammad M.; Zainuddin, Shaik; Hosur, Mahesh; Malone, Johnathan; Salam, Mahmud B.; Kumar, Ashok; Jeelani, Shaik

doi:10.1016/j.compstruct.2012.03.014

Cited by 167 publications

(121 citation statements)

References 25 publications

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“…Functionalization of MWCNTs assists the dispersion process with the positive or negative charge of functional group, which undermines the van der Waals forces (Soliman et al 2012). Several methods of dispersion, such as mechanical and magnetic stirring (Soliman et al 2012), sonication (Rahman et al 2012Salam et al 2013), and high-speed shear mixing (Rahman et al 2012Kostopoulos et al 2010) have been reported by researchers. In our study, desired amount of carboxyl functionalized MWCNT was mixed with calculated amount of epoxy part A, followed by sonication at a temperature of about 40 • C for 30 min at 39% of peak amplitude (20 µm) and 30 s on /20 s off pulsating cycle to ensure uniform mixing dispersion.…”

Section: Dispersion Of Cooh-mwcnt Into Epoxy Resinmentioning

confidence: 99%

“…Sonication, three-roll shear mixture, magnetic stirring, and mechanical stirring are commonly used dispersion techniques. Combination of sonication and three-roll shear mixing leads to better dispersion, thereby better mechanical and thermal properties (Rahman et al 2012. Zainuddin et al reported combined dispersion method with and without acetone media and concluded that dispersion in acetone media resulted in about 72% improvement of viscoelastic properties (Zainuddin et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Studies on the performance of multi-phased carbon/epoxy composites with nanoclay and multi-walled carbon nanotubes

Hosur

Mahdi

Jeelani

2018

Multiscale and Multidiscip. Model. Exp. and Des.

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In this study, both nanoclay and COOH-functionalized multi-walled carbon nanotubes (MWCNTs) were mixed with SC-15 epoxy resin system, individually as well as together, referred as binary nanoparticles. Resulting nanocomposite was used to prepare multi-phase carbon/epoxy composites. Composites were characterized for their thermal, thermo-mechanical, tensile, and flexural properties. Failure modes of tensile and flexural samples were determined through optical and scanning electron microscopy. Properties of multi-phased nanocomposites were compared with those of carbon/epoxy composites with no nanoparticles, referred to as neat samples. While all nanophased samples exhibited better properties compared to the neat samples, composites with binary nanoparticles exhibited the best properties. Their flexural strength and modulus increased about 30 and 31%, respectively. Tensile strength, modulus, and strain to failure increased by about 28, 27, and 40%, respectively. In addition, they exhibited about 40, 44, and 19% improvement in storage modulus, loss modulus, and glass transition temperature, respectively. Coefficient of thermal expansion (CTE), when measured through thickness, decreased by about 15 and 40%, before and after glass transition temperature, respectively. Morphological and microscopic analyses exhibit higher interfacial adhesion of resin and fibers when matrix is modified with nanoparticles.

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Section: Dispersion Of Cooh-mwcnt Into Epoxy Resinmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Studies on the performance of multi-phased carbon/epoxy composites with nanoclay and multi-walled carbon nanotubes

Hosur

Mahdi

Jeelani

2018

Multiscale and Multidiscip. Model. Exp. and Des.

View full text Add to dashboard Cite

show abstract

“…High resistance against the movement of surrounding matrix is due to the uniform distribution of nanofillers. This results in a high dissipation of energy [34]. In addition, exfoliation of GNP allows the resin to reside in graphene layers.…”

Section: Dynamic Mechanical Analysis (Dma)mentioning

confidence: 99%

Processing and Performance Evaluation of Amine Functionalized Graphene Nanoplatelet Reinforced Epoxy Composites

Hossain¹,

Chowdhury²,

Bolden³

2016

JMSE-A

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A systematic study was conducted on processing and characterization of epoxy-EPON 828 polymer composite to enhance its mechanical, viscoelastic, and thermal properties through the integration of an optimum amount of amine-functionalized graphene nanoplatelets (GNP). Amine functionalized 0.1, 0.2, 0.3, 0.4 and 0.5 wt% GNP was infused into EPON 828 Part-A using a high intensity ultrasonic liquid processor followed by three roll milling. The Epoxy-GNP mixture was then mixed with the curing agent Epikure 3223. The mixture was then placed in a vacuum oven at 40 °C for 10 minutes. The as-prepared resin mixture was then poured in rubber molds to prepare samples for characterization according to ASTM standards. Simultaneously, neat epoxy samples were fabricated to obtain its baseline properties. The mechanical properties were determined through flexure test and the fracture morphology was evaluated through scanning electron microscopy (SEM). Dynamic mechanical analysis (DMA) and thermomechanical analysis (TMA) were performed to analyze viscoelastic and thermomechanical properties to determine thermal performances. The results indicate that the 0.4 wt% GNP infused epoxy nanocomposite exhibited the best properties. The tests showed 20% and 40% improvement in flexure strength and modulus, respectively. SEM micrographs exhibited smooth fracture surface for the neat sample. The roughness of fracture surfaces increased as more GNP was added to the composites. Moreover, 16% improvement in the storage modulus and 37% decrease in the coefficient of thermal expansion were observed.

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“…[1][2][3][4][5] Carbon nanotube reinforced glass fiber polymer composites exhibit high strength to weight ratio, superior corrosion and fatigue resistance as compared to neat epoxy composites likely due to their intrinsic properties.…”

Section: Introductionmentioning

confidence: 99%

“…Further improvement in mechanical properties has been reported after the addition of amino functionalized CNT in PNC. 1,[3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] Besides, effective interfacial bonding between the composites individual constituents the properties of the composite materials is primarily dependent on the dispersion of CNT in the polymer matrix. Thus, at present the full potential of CNTs as reinforcement is still limited due to the non-homogenous dispersion of CNT as they exist as agglomerates and also due to poor interfacial interaction between CNTs and the polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

Effect of Processing Conditions on the Mechanical Behavior of Amino Functionalized Nanotube Modified Glass Fiber Epoxy Composites

Garg

Sharma

Mehta

2017

MSEIJ

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In the present study, 2-ply glass fiber epoxy composites were prepared with aminofunctionalized carbon nanotubes using Vacuum assisted resin infusion molding (VARIM) technique. The focus is to evaluate the different processing techniques used to uniformly disperse nanotubes in resin and their effect on mechanical properties. In addition, the dispersion and mechanical performance by incorporating aminonanotubes in curing agent vis-à-vis epoxy resin is also studied. Lastly, the mechanical behavior of composites on increasing the resin infusion temperature prior to its fabrication is also investigated. The mechanical results along with SEM and TEM images validate the proposed processing methodology and use of higher infusion temperature.

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Improvements in mechanical and thermo-mechanical properties of e-glass/epoxy composites using amino functionalized MWCNTs

Cited by 167 publications

References 25 publications

Studies on the performance of multi-phased carbon/epoxy composites with nanoclay and multi-walled carbon nanotubes

Studies on the performance of multi-phased carbon/epoxy composites with nanoclay and multi-walled carbon nanotubes

Processing and Performance Evaluation of Amine Functionalized Graphene Nanoplatelet Reinforced Epoxy Composites

Effect of Processing Conditions on the Mechanical Behavior of Amino Functionalized Nanotube Modified Glass Fiber Epoxy Composites

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