scholarly journals Corrosion, mechanical and thermal properties of aluminium alloy metal matrix nano composites (AA-MMNCs) with multi-walled carbon nanotubes

2020 ◽  
Vol 2 (7) ◽  
Author(s):  
A. Jayaraj ◽  
Ch. V. K. N. S. N. Moorthy ◽  
V. S. N. Venkataramana ◽  
S. Jaikumar ◽  
V. Srinivas
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Properties ◽  
Aluminium Alloy ◽  
Metal Matrix ◽  
Nano Composites ◽  
Mechanical And Thermal Properties ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Alloy Metal

Nickel Electrodeposition on Electrophoretically Deposited Carbon Nanotube Films

2009 ◽  
Vol 412 ◽  
pp. 87-92 ◽  
Author(s):  
Maria Federica De Riccardis ◽  
Daniela Carbone ◽  
Virginia Martina ◽  
Marilena Re ◽  
De Cheng Meng ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Stainless Steel ◽  
Thermal Properties ◽  
Metal Matrix ◽  
Mechanical And Thermal Properties ◽  
Matrix Composites ◽  
Nickel Electrodeposition ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Steel Substrates

Multi-walled carbon nanotubes (CNTs) were deposited by electrophoretic deposition on stainless steel substrates forming homogeneous porous CNT deposits. These CNT structures were then coated with a thin layer of Ni by electrodeposition. SEM and TEM observations confirmed that the Ni layer covered uniformly the CNT surfaces. This Ni coating treatment could facilitate the dispersion of CNTs in metal matrix composites leading to improved mechanical and thermal properties.

ANTIMICROBIAL EFFECTS OF CARBON NANOTUBES

Nano LIFE ◽  
2012 ◽  
Vol 02 (04) ◽  
pp. 1230012 ◽  
Author(s):  
XIULI DONG ◽  
YONGAN TANG ◽  
MARQUITA LILLY ◽  
KAMAL AFERCHICH ◽  
LIJU YANG
Keyword(s):  
Public Health ◽  
Carbon Nanotubes ◽  
Thermal Properties ◽  
Biofilm Formation ◽  
Single Walled Carbon Nanotubes ◽  
Mechanical And Thermal Properties ◽  
Antimicrobial Effects ◽  
Single Walled Carbon ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Inactivation of pathogens from environment and inhibition of biofilm formation on various surfaces are important for biosafety, biosecurity and public health. Carbon nanotubes (CNTs) possess antimicrobial effects in addition to their unique optical, electrical, mechanical and thermal properties. This review summarizes the antimicrobial effects of single walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) in suspensions and on CNT contained surfaces. To increase antimicrobial effects, CNT composites containing other antimicrobial reagents are introduced. Also described are the possible antimicrobial mechanisms of CNTs.

Effect of Surface Modification on Multi-Walled Carbon Nanotubes and their Reinforced Nylon Composites

2020 ◽  
Vol 847 ◽  
pp. 108-113
Author(s):  
Yeng Fong Shih ◽  
Venkata Krishna Kotharangannagari ◽  
You Ting Lin
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Properties ◽  
Mechanical And Thermal Properties ◽  
Melt Blending ◽  
Chemically Modified ◽  
Blending Method ◽  
Carboxylic Groups ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Effect Of Surface

In this study, a series of nanocomposites were prepared by melt-blending method using Nylon (Nylon12, PA12) and multi-walled carbon nanotubes (MWCNTs) with various contents such as 0.0 wt.%, 0.5 wt.%, 1.0 wt.%, 3.0 wt.%. In order to improve the dispersion of MWCNTs in composites, the MWCNTs were first acid treated by the HNO3 solution to functionalize the carboxylic groups on the surface. Subsequently, this acid treated MWCNTs were reacted with Polyetheramine (Jeffamine® M2070) and Polyethylenimine under mild conditions, respectively, to obtain the chemically modified MWCNTs (M-M2070 and M-PEI). The amide groups formed on these chemically modified MWCNTs will enhance the compatibility of MWCNTs and Nylon. The effects of different modification methods on the thermal properties, mechanical properties and electrical resistance of these Nylon12/MWCNTs composites were investigated. The results showed that M-M2070 and M-PEI dispersed in Nylon12 homogeneously, and can improve the mechanical and thermal properties of the composite materials effectively. The DMA analysis revealed that the storage moduli of nanocomposites were increased with increasing MWCNTs content. Among all, the nanocomposites containing 3wt% of M-M2070 and M-PEI were shown increased storage moduli 48.2% and 29.8%, respectively. TGA analysis showed that pyrolysis temperature of neat Nylon12 was 412.7 °C, and was increased about 43 °C by addition of M-M2070 and 36.7 °C by addition of M-PEI. Moreover, the surface resistance of neat Nylon12 was 1.68×1014 ohm/sq, and was decreased to 1.33×105 and 4.34×106 ohm/sq by addition of 3wt% M-M2070 and M-PEI, respectively. The resistance values of these nanocomposites have achieved the level of static dissipation, and can prevent the harm of static electricity.

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