Enhancing flame retardant and antistatic properties of polyamide 6 by a grafted multiwall carbon nanotubes

2020 ◽  
Vol 138 (11) ◽  
pp. 50015 ◽  
Author(s):  
Boqiong Xue ◽  
Yuchun Li ◽  
Jia Guo ◽  
Jun Sun ◽  
Xiaodong Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Flame Retardant ◽  
Multiwall Carbon Nanotubes ◽  
Polyamide 6 ◽  
Multiwall Carbon

Scratch and Wear Resistance of Polyamide 6 Reinforced with Multiwall Carbon Nanotubes

2008 ◽  
Vol 8 (6) ◽  
pp. 3176-3183 ◽  
Author(s):  
Luis F. Giraldo ◽  
Witold Brostow ◽  
Eric Devaux ◽  
Betty L. López ◽  
León D. Pérez
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Sliding Wear ◽  
Multiwall Carbon Nanotubes ◽  
Young Modulus ◽  
Tensile Tests ◽  
Polyamide 6 ◽  
Melt Mixing ◽  
Air Atmosphere ◽  
Multiwall Carbon

While carbon nanotubes have been used for a variety of purposes, it was not known whether they can improve tribological properties of polymers. Polyamide 6 (PA6) has been reinforced with 0.2, 0.5 and 1.0 wt% of multiwall carbon nanotubes (MWCNTs) by melt mixing process and characterized by scanning electron microscopy (SEM), transmission electron microscopy, thermogravimetric analysis (TGA), scratching, sliding wear and tensile testing. TGA results for the air atmosphere show that MWCNTs shift the onset of thermal degradation to higher temperatures. Sliding wear tests show that the penetration depth decreases as the concentration of carbon nanotubes increases. However, the viscoelastic healing is hampered by the MWCNTs presence and the residual depths increase at the same time. Narrower scratch groove widths are seen in SEM for composites with MWCNTs, and scratch hardness increases. Tensile tests show an increase of 27% in the Young modulus value upon addition of 1.0% of MWCNTs. The stress at yield is also higher for the nanocomposites.

Boehmite Nanofibers as a Dispersant for Nanotubes in an Aqueous Sol

2018 ◽  
Author(s):  
Gen Hayase
Keyword(s):  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
Aqueous Solutions ◽  
High Aspect Ratio ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon ◽  
Nanotube Films

By exploiting the dispersibility and rigidity of boehmite nanofibers (BNFs) with a high aspect ratio of 4 nm in diameter and several micrometers in length, multiwall-carbon nanotubes (MWCNTs) were successfully dispersed in aqueous solutions. In these sols, the MWCNTs were dispersed at a ratio of about 5–8% relative to BNFs. Self-standing BNF–nanotube films were also obtained by filtering these dispersions and showing their functionality. These films can be expected to be applied to sensing materials.

scholarly journals Comparative study of using Water-Based mud containing Multiwall Carbon Nanotubes versus Oil-Based mud in HPHT fields

2016 ◽  
Vol 25 (4) ◽  
pp. 459-464 ◽  
Author(s):  
M.I. Abduo ◽  
A.S. Dahab ◽  
Hesham Abuseda ◽  
Abdulaziz M. AbdulAziz ◽  
M.S. Elhossieny
Keyword(s):  
Carbon Nanotubes ◽  
Comparative Study ◽  
Multiwall Carbon Nanotubes ◽  
Water Based ◽  
Multiwall Carbon
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