Cryogenic mechanical behaviors of carbon nanotube reinforced composites based on modified epoxy by poly(ethersulfone)

2012 ◽  
Vol 43 (1) ◽  
pp. 22-26 ◽  
Author(s):  
Jiao-Ping Yang ◽  
Zhen-Kun Chen ◽  
Qing-Ping Feng ◽  
Yin-Hu Deng ◽  
Yu Liu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Reinforced Composites ◽  
Mechanical Behaviors ◽  
Modified Epoxy

Investigation of Fiber-Reinforced Modified Epoxy Resin Composites

2012 ◽  
Vol 510-511 ◽  
pp. 577-584 ◽  
Author(s):  
A. Quddos ◽  
Mohammad Bilal Khan ◽  
R.N. Khan ◽  
M.K.K. Ghauri
Keyword(s):  
Epoxy Resin ◽  
High Strength ◽  
Polymeric Matrix ◽  
Fiber Reinforced Composites ◽  
Resin Matrix ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Epoxy Resin Matrix ◽  
The Matrix ◽  
Modified Epoxy

The impregnation of the fiber with a resin system, the polymeric matrix with the interface needs to be properly cured so that the dimensional stability of the matrix and the composite is ensured. A modified epoxy resin matrix was obtained with a reactive toughening agent and anhydride as a curing agent. The mechanical properties of the modified epoxy matrix and its fiber reinforced composites were investigated systematically. The polymeric matrix possessed many good properties, including high strength, high elongation at break, low viscosity, long pot life at room temperature, and good water resistance. The special attentions are given to the matrix due to its low out gassing, low water absorption and radiation resistance. In addition, the fiber-reinforced composites showed a high strength conversion ratio of the fiber and good fatigue resistance. The dynamic and static of the composite material were studied by thermo gravimetric analysis (TGA), Differential Scanning Calorimetry (DSC) and Scanning Electron Microscopy (SEM) with EDX. The influences of processing technique such as curing and proper mixing on the mechanical and interfacial properties were determined. The results demonstrated that the modified epoxy resin matrix is very suitable for applications in products fabricated with fiber-reinforced composites.

Effect of carbon nanotube modified epoxy adhesive on CFRP-to-steel interface

2015 ◽  
Vol 79 ◽  
pp. 95-104 ◽  
Author(s):  
Asghar H. Korayem ◽  
Chen Yang Li ◽  
Qian Hui Zhang ◽  
Xiao Ling Zhao ◽  
Wen Hui Duan
Keyword(s):  
Carbon Nanotube ◽  
Epoxy Adhesive ◽  
Modified Epoxy

The Effect of Nanotube Waviness and Agglomeration on the Elastic Property of Carbon Nanotube-Reinforced Composites

2004 ◽  
Vol 126 (3) ◽  
pp. 250-257 ◽  
Author(s):  
Dong-Li Shi ◽  
Xi-Qiao Feng ◽  
Yonggang Y. Huang ◽  
Keh-Chih Hwang ◽  
Huajian Gao
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Effective Properties ◽  
High Strength ◽  
Elastic Stiffness ◽  
Field Method ◽  
Effective Field ◽  
Great Promise ◽  
Reinforced Composites ◽  
Stiffening Effect

Owing to their superior mechanical and physical properties, carbon nanotubes seem to hold a great promise as an ideal reinforcing material for composites of high-strength and low-density. In most of the experimental results up to date, however, only modest improvements in the strength and stiffness have been achieved by incorporating carbon nanotubes in polymers. In the present paper, the stiffening effect of carbon nanotubes is quantitatively investigated by micromechanics methods. Especially, the effects of the extensively observed waviness and agglomeration of carbon nanotubes are examined theoretically. The Mori-Tanaka effective-field method is first employed to calculate the effective elastic moduli of composites with aligned or randomly oriented straight nanotubes. Then, a novel micromechanics model is developed to consider the waviness or curviness effect of nanotubes, which are assumed to have a helical shape. Finally, the influence of nanotube agglomeration on the effective stiffness is analyzed. Analytical expressions are derived for the effective elastic stiffness of carbon nanotube-reinforced composites with the effects of waviness and agglomeration. It is found that these two mechanisms may reduce the stiffening effect of nanotubes significantly. The present study not only provides the relationship between the effective properties and the morphology of carbon nanotube-reinforced composites, but also may be useful for improving and tailoring the mechanical properties of nanotube composites.

Processing and properties of carbon nanotube reinforced composites: A review

2020 ◽  
Vol 27 ◽  
pp. 1152-1156
Author(s):  
S. Dinesh Kumar ◽  
M. Ravichandran ◽  
S.V. Alagarsamy ◽  
C. Chanakyan ◽  
M. Meignanamoorthy ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Reinforced Composites
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