Geometry Effect of Multi-Walled Carbon Nanotube on Elastic Modulus of Polymer Composites

2014 ◽  
Vol 38 (1) ◽  
pp. 89-94
Author(s):  
Jonghwan Suhr
Keyword(s):  
Elastic Modulus ◽  
Carbon Nanotube ◽  
Polymer Composites ◽  
Geometry Effect ◽  
Multi Walled Carbon Nanotube

The influence of functionalization time of carbon nanotube on the mechanical properties of the epoxy composites

2017 ◽  
Vol 51 (12) ◽  
pp. 1693-1701 ◽  
Author(s):  
EA Zakharychev ◽  
EN Razov ◽  
Yu D Semchikov ◽  
NS Zakharycheva ◽  
MA Kabina
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Tensile Strength ◽  
Elastic Modulus ◽  
Carbon Nanotube ◽  
Composite Materials ◽  
Polymer Composites ◽  
Epoxy Composites ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

This paper investigates the structure, length, and percentage of functional groups of multi-walled carbon nanotubes (CNT) depending on the time taken for functionalization in HNO3 and H2SO4 mixture. The carbon nanotube content and influence of functionalization time on mechanical properties of polymer composite materials based on epoxy matrix are studied. The extreme dependencies of mechanical properties of carbon nanotube functionalization time of polymer composites were established. The rise in tensile strength of obtained composites reaches 102% and elastic modulus reaches 227% as compared to that of unfilled polymer. The composites exhibited best mechanical properties by including carbon nanotube with 0.5 h functionalization time.

Impact of nanotube density and alignment on the elastic modulus near the top and base surfaces of aligned multi-walled carbon nanotube films

Carbon ◽  
2012 ◽  
Vol 50 (10) ◽  
pp. 3789-3798 ◽  
Author(s):  
Yuan Gao ◽  
Takashi Kodama ◽  
Yoonjin Won ◽  
Senyo Dogbe ◽  
Lawrence Pan ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Carbon Nanotube ◽  
Multi Walled Carbon Nanotube ◽  
Nanotube Films

Effect of Fiber Diameter Waviness and Wavelength Ratio on the Effective Tensile Elastic Modulus of Carbon Nanotube-Based Polymer Composites

2009 ◽  
Vol 83-86 ◽  
pp. 473-480
Author(s):  
A.A. Khaled ◽  
A.K.M. Masud ◽  
S.C. Chowdhury ◽  
S. Jannat ◽  
M. Obayedullah
Keyword(s):  
Elastic Modulus ◽  
Carbon Nanotube ◽  
Polymer Composites ◽  
Polymer Composite ◽  
Volume Fraction ◽  
Fiber Diameter ◽  
Material Constant ◽  
Diameter Variation ◽  
Ratio Variation ◽  
Tensile Elastic Modulus

In this paper, the effects of nanotube diameter, waviness ratio and wavelength ratio on the tensile elastic modulus (TEM) of the carbon nanotube (CNT) reinforced polymer composites is investigated using a 3-D nanoscale representative volume element (RVE) based on continuum mechanics and using the finite element method (FEM). Formula to extract the effective material constant from solutions for the RVE under axial loading is derived based on the elasticity theory. Both long and short CNT embedded in the matrix are considered for investigating the effect of fiber diameter variation whereas only long wavy CNT is considered for investigating the effect of waviness and wavelength ratio variation, all at a volume fraction of 5%. First, the effects of CNT diameter on the TEM of the composite are investigated. Numerical results show that TEM of the polymer composite is influenced by tube diameter variation for both long and short CNT. Then the effects of waviness ratio and wavelength ratio on the TEM of polymer composite are investigated. Results show that both the waviness and wavelength ratio variation of CNT significantly influence the TEM of the polymer composite.

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