Thermo-mechanical properties of randomly oriented carbon/epoxy nanocomposites

Fidelus, Janusz D.; Wiesel, E.; Gojny, Florian H.; Schulte, Karl; Wagner, H. Daniel

doi:10.1016/j.compositesa.2005.02.006

Cited by 345 publications

(167 citation statements)

References 27 publications

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“…Measuring the temperature dependent material properties is also critical for determination of appropriate processing conditions to predict the behavior of polymeric components during their service life [2][3][4][5][6][7][8][9][10][11][12]. The dispersion state of carbon nanotubes influences the dynamic mechanical properties of the resulting nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

“…The dispersion state of carbon nanotubes influences the dynamic mechanical properties of the resulting nanocomposites. Fidelus et al [12] investigated the dynamic mechanical properties of the epoxy based nanocomposites containing MWCNTs and SWCNTs. They found an 8% increase of storage modulus in the nanocomposites with SWCNTs relative to the neat epoxy, while those with MWCNTs showed almost no substantial change in the elastic modulus values.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Rheological and dynamic-mechanical behavior of carbon nanotube/vinyl ester–polyester suspensions and their nanocomposites

Seyhan

Gojny

Tanoğlu

et al. 2007

European Polymer Journal

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107

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Rheological properties of vinyl ester-polyester resin suspensions containing various amounts (0.05, 0.1 and 0.3 wt.%) of multi walled carbon nanotubes (MWCNT) with and without amine functional groups (-NH 2 ) were investigated by utilization of oscillatory rheometer with parallel plate geometry. Dispersion of corresponding carbon nanotubes within the resin blend was accomplished employing high shear mixing technique (3-roll milling). Based on the dynamic viscoelastic measurements, it was observed that at 0.3 wt.% of CNT loadings, storage modulus (G 0 ) values of suspensions containing MWCNTs and MWCNT-NH 2 exhibited frequency-independent pseudo solid like behavior especially at lower frequencies. Moreover, the loss modulus (G 00 ) values of the resin suspensions with respect to frequency were observed to increase with an increase in contents of CNTs within the resin blend. In addition, steady shear viscosity measurements implied that at each given loading rate, the resin suspensions demonstrated shear thinning behavior regardless of amine functional groups, while the neat resin blend was almost the Newtonian fluid. Furthermore, dynamic mechanical behavior of the nanocomposites achieved by polymerizing the resin blend suspensions with MWCNTs and MWCNT-NH 2 was investigated through dynamic mechanical thermal analyzer (DMTA). It was revealed that storage modulus (E 0 ) and the loss modulus (E 00 ) values of the resulting nanocomposites increased with regard to carbon nanotubes incorporated into the resin blend. In addition, at each given loading rate, nanocomposites containing MWCNT-NH 2 possessed larger loss and storage modulus values as well as higher glass transition temperatures (T g ) as compared to those with MWCNTs. These findings were attributed to evidences for contribution of amine functional groups to chemical interactions at the interface between CNTs and the resin blend matrix. Transmission electron microscopy (TEM) studies performed on the cured resin samples approved that the dispersion state of carbon nanotubes with and without amine functional groups within the matrix resin blend was adequate. This implies that 3-roll milling process described herein is very appropriate technique for blending of carbon nanotubes with a liquid thermoset resin to manufacture nanocomposites with enhanced final properties.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Rheological and dynamic-mechanical behavior of carbon nanotube/vinyl ester–polyester suspensions and their nanocomposites

Seyhan

Gojny

Tanoğlu

et al. 2007

European Polymer Journal

Self Cite

107

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“…Dong et al [Dong et al, 2005] also used the same method for the preparation of MWCNTs-containg epoxy composites. Fidelus et al [Fidelus et al, 2005] used two different types of epoxy resins: (i) LY 564/hardener: HY 560 and (ii) Epon 815/hardener: Jeffamine T-403 polyetheramine for the fabrication of CNTs containing epoxy composites. In their experimental procedure, the surfactant sodium dodecyl sulphate (SDS) was first dissolved in tetrahydrofuran (THF) and MWCNTs were dispersed in the solution by ultrasonication for 1 h. Epoxy resin was then added under sonication for 4 min.…”

Section: Swcnt Graphene Sheetmentioning

confidence: 99%

“…From these observations it is clear that low viscosity epoxy matrix is advantageous for CNT fillers in composite processing. The reinforcing effect of MWCNTs in two different epoxy polymers (Epon 815 and LY 564) has been investigated by Fidelus et al [Fidelus et al, 2005]. The nanotubes were dispersed using SDS as the surfactant.…”

mentioning

confidence: 99%

Epoxy-based Carbon Nanotubes Reinforced Composites

Pillai¹,

Ray²

2011

Advances in Nanocomposites - Synthesis, Characterization and Industrial Applications

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“…Although a large amount of research has been dedicated to accurately obtaining the mechanical properties of Carbon NanoTube-Reinforced Composites (CNTRC's) [Odegard et al (2003), Hu et al (2005), Fidelus et al (2005), Bonnet et al (2007), Han and Elliot (2007), Zhu et al (2007)], not as many studies have yet been conducted on the global response of CNTRC's to actual structural loading conditions in practical applications which is of course the ultimate purpose for the design and development of such materials.…”

Section: Introductionmentioning

confidence: 99%

Free Vibration Analysis of Functionally Graded Nanocomposite Beams on Elastic Foundation Using a Mesh-Free Method

Sayyidmousavi

Foroutan

Fawaz

2017

Lat. Am. j. solids struct.

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The use of Carbon Nanotubes as the reinforcing constituent for polymer matrix composites in place of conventional fibers has led to the emergence of a new generation of advanced composite materials. In this paper, the free vibration of functionally graded nanocomposite beams on elastic foundations are studied. Three different types of Carbon Nanotubes distributions in the polymer matrix material are studied; Uniform distribution, symmetrically functionally graded distribution and unsymmetrically functionally graded distribution. The analysis is carried out by a mesh-free method using the two-dimensional theory of elasticity. The Moving Least Square shape functions are implemented to approximate the displacement field. Due to the absence of the Kronecker delta property of the shape functions, a transformation technique is used to apply the essential boundary conditions. After validation, the effects of different design parameters such as Carbon Nanotubes distribution, slenderness ratios, boundary conditions and foundation stiffness on the vibrational behavior of the structure are investigated. It can be seen that from a design perspective, the vibrational response of a FG structure may be controlled in two ways; one way is through changing the distribution of the CNT's in the matrix material and the other way is by changing stiffness of the elastic foundation on which it is resting. A notable observation is that increasing the stiffness of the foundation will move the neutral axis away from the foundation support of the beam. The current approach can serve as a benchmark against which other semianalytical and numerical methods based on classical beam theories can be compared.

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Thermo-mechanical properties of randomly oriented carbon/epoxy nanocomposites

Cited by 345 publications

References 27 publications

Rheological and dynamic-mechanical behavior of carbon nanotube/vinyl ester–polyester suspensions and their nanocomposites

Rheological and dynamic-mechanical behavior of carbon nanotube/vinyl ester–polyester suspensions and their nanocomposites

Epoxy-based Carbon Nanotubes Reinforced Composites

Free Vibration Analysis of Functionally Graded Nanocomposite Beams on Elastic Foundation Using a Mesh-Free Method

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