Role of sonication time on mechanical properties of graphene oxide/epoxy nanocomposites under quasi-static loading conditions

2019 ◽  
Vol 28 (10) ◽  
pp. 895-908 ◽  
Author(s):  
S. Amini Nejad ◽  
G. H. Majzoobi ◽  
S. A. R. Sabet
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Static Loading ◽  
Loading Conditions ◽  
Sonication Time ◽  
Epoxy Nanocomposites

A study on the mechanical properties of graphene oxide/epoxy nanocomposites

2021 ◽  
pp. 096739112110111
Author(s):  
Rahim Eqra ◽  
Mohammad Hadi Moghim ◽  
Navid Eqra
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Graphene Oxide ◽  
Solution Casting ◽  
Casting Method ◽  
Epoxy Nanocomposites ◽  
Epoxy Nanocomposite ◽  
Solution Casting Method ◽  
Good Agreement

The aims of this research are to elucidate the role of graphene oxide on the mechanical properties of epoxy and also to obtain an equation for the modeling of its behavior. Accordingly, graphene oxide/epoxy nanocomposite samples are fabricated using the solution casting method. Tensile, flexural, SEM and FTIR tests are conducted on epoxy and the nanocomposite samples afterwards. The obtained results show that the tensile strength of epoxy improves even at low contents of graphene oxide such that 0.3 wt.% of GO yields an improvement of approximately 11.5%. The flexural strength of epoxy is also enhanced by 5.8% with 0.5 wt.% GO. Then, it decreases due to the agglomeration with increasing the GO content. In order to predict the tensile strength of GO/epoxy nanocomposites, a modified Halpin–Tsai equation is obtained with a new introduced correction factor as K = 39.5 Vf 1.135exp(2.9−1644.6 Vf). The obtained equation is in good agreement with the experimental data.

Role of non-functionalized oxide nanoparticles on mechanical properties and toughening mechanisms of epoxy nanocomposites

2021 ◽  
Author(s):  
M.S. Goyat ◽  
Amrita Hooda ◽  
Tejendra K. Gupta ◽  
Kaushal Kumar ◽  
Sudipta Halder ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Oxide Nanoparticles ◽  
Epoxy Nanocomposites ◽  
Toughening Mechanisms

Role of graphene oxide surface chemistry on the improvement of the interlaminar mechanical properties of resin infusion processed epoxy-carbon fiber composites

2017 ◽  
Vol 39 (S4) ◽  
pp. E2116-E2124 ◽  
Author(s):  
Gloria Ramos-Fernandez ◽  
María Muñoz ◽  
Juan C. García-Quesada ◽  
Iluminada Rodriguez-Pastor ◽  
Ignacio Martin-Gullon
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Carbon Fiber ◽  
Surface Chemistry ◽  
Fiber Composites ◽  
Oxide Surface ◽  
Carbon Fiber Composites ◽  
Resin Infusion

The role of functional groups on graphene oxide in epoxy nanocomposites

Polymer ◽  
2013 ◽  
Vol 54 (21) ◽  
pp. 5821-5829 ◽  
Author(s):  
Zheng Li ◽  
Robert J. Young ◽  
Rongguo Wang ◽  
Fan Yang ◽  
Lifeng Hao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Functional Groups ◽  
Epoxy Nanocomposites

Ternary PC/ABS/PMMA blends — morphology and mechanical properties under quasi-static loading conditions

Polimery ◽  
2012 ◽  
Vol 57 (2) ◽  
pp. 87-94 ◽  
Author(s):  
JAN RYBNICEK ◽  
RALF LACH ◽  
WOLFGANG GRELLMANN ◽  
MONIKA LAPCIKOVA ◽  
MIROSLAV SLOUF ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Static Loading ◽  
Loading Conditions ◽  
Pmma Blends ◽  
Morphology And Mechanical Properties

Moisture Effect on Mechanical Properties of Graphene/Epoxy Nanocomposites

2016 ◽  
Vol 32 (6) ◽  
pp. 673-682 ◽  
Author(s):  
H.-K. Liu ◽  
Y.-C. Wang ◽  
T.-H. Huang
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Moisture Absorption ◽  
Graphene Nanosheets ◽  
Salt Water ◽  
Testing Machine ◽  
Weight Fraction ◽  
Epoxy Nanocomposites ◽  
Moisture Effect ◽  
Superior Mechanical Properties

Abstract2-D graphene nanosheets (GNS) not only have superior mechanical properties, but stacking of GNS in composites is expected to inhibit moisture absorption. In this paper, moisture effect on tensile strength of graphene/epoxy nanocomposites is investigated. Two kinds of graphene reinforcements are used including graphene oxide (GO) and reduced graphene oxide (RGO) with reinforcement weight fraction WGO or WRGO in the range of 0.5 to 3.0wt%. A dispersion agent acetone is added in nanocomposites to enhance graphene dispersion. To evaluate moisture influence, those nanocomposites are soaked in two kinds of liquid including deionized water (DIW) and salt water (saline solution) for seven kinds of soaking periods of time including 24, 48, 72, 100, 400 hours, 30 days, and 60 days. After soaking test, diffusion coefficients of various composites are evaluated; besides tensile strengths of composites are measured by microforce testing machine. In order to correlate the strength with microstructure evolution, several techniques are adopted to analyze morphologies and functionalities of reinforcements and fracture surface of composites. They include Raman spectroscope, X-ray photoelectron spectroscope, and SEM. 2-D GNS are found to effectively enhance nanocomposites by moisture attack, and their corresponding reinforcing mechanisms are proposed.

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