Reducing dispersity of mechanical properties of carbon fiber/epoxy composites by introducing multi-walled carbon nanotubes

2013 ◽  
Vol 54 ◽  
pp. 371-376 ◽  
Author(s):  
Jianwei Zhang ◽  
Su Ju ◽  
Dazhi Jiang ◽  
Hua-Xin Peng
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Fiber ◽  
Epoxy Composites ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Carbon Fiber Epoxy

Reinforcing and toughening carbon fiber/epoxy composites with styrene–butadiene–styrene copolymer grafted carbon nanotubes

2020 ◽  
Vol 27 (1) ◽  
pp. 143-159
Author(s):  
Yuan ◽  
Chen ◽  
Wang ◽  
Li ◽  
Wei ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Fiber ◽  
Photoelectron Spectroscopy ◽  
Multi Walled Carbon Nanotubes ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Walled Carbon Nanotubes ◽  
Carbon Fiber Epoxy ◽  
Butadiene Styrene

SBS-g-MWNTs/carbon fiber/epoxy (SBS-g-MWNTs/CF/EP) three-phase composite laminates were fabricated to study the effect of styrene-butadiene-styrene triblock copolymer grafted multi-walled carbon nanotubes (SBS-g-MWNTs) on mechanical performance of carbon fiber-reinforced composite. The chemical grafting of styrene-butadiene-styrene (SBS) on multi-walled carbon nanotubes (MWNTs) was characterized by X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), transmission electron microscopic (TEM) and thermogravimetric analysis (TGA). The mechanical properties of SBS-g-MWNTs filled CF/EP composites were evaluated by tensile, flexural, impact and interfacial shear strength (ILSS) tests. Results showed that SBS-g-MWNTs was homogeneously dispersed in epoxy matrix and the existence of SBS-g-MWNTs effectively strengthened the interfacial adhesion between carbon fiber and epoxy, leading to remarkable enhancement in impact strength by 90.2% and ILSS by 99.7% of the composites with as low as 0.50 wt.% SBS-g-MWNTs, along with other improved mechanical properties.

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.

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