Thermo‐mechanical and tribological properties of multi‐walled carbon nanotubes filled friction composite materials

2015 ◽  
Vol 38 (6) ◽  
pp. 1183-1193 ◽  
Author(s):  
Tej Singh ◽  
Amar Patnaik
Keyword(s):  
Carbon Nanotubes ◽  
Composite Materials ◽  
Tribological Properties ◽  
Mechanical And Tribological Properties ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

scholarly journals Fabrication and Evaluation of Mechanical and Tribological Properties of ultra-high-molecular-weight polyethylene-based Nanocomposites Reinforced with Hydroxyapatite, Zirconia and Multi-walled Carbon Nanotubes

2021 ◽  
Author(s):  
Alireza Nikbakht ◽  
Jafar Javadpour ◽  
Mohammd Reza Naimi-Jamal ◽  
Hamidreza Rezaie
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Weight ◽  
High Molecular Weight ◽  
Tribological Properties ◽  
Cell Attachment ◽  
Mechanical And Tribological Properties ◽  
Optimum Proportion ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Ultra High Molecular Weight

The unique properties of ultra-high-molecular-weight polyethylene (UHMWPE) have made composites based on this polymer the gold standard choice for articulating surfaces used in arthroplasty. However, wear debris released by prosthesis is still a major concern of the implants. In this study, we address the urgent need to revisit the current methodologies used in designing these biomaterials by fabricating UHMWPE-based nanocomposite with Hydroxyapatite (HA), Multi-walled Carbon Nanotubes (MWCNTs), and Zirconia as additives. We investigated how different combinations of these additives impact the nanocomposites' hardness, plasticity index (PI), and friction coefficient. Our results show a constant increase in hardness by increasing Zirconia. The MTT assay test and Scanning Electron Microscopy (SEM) demonstrated an increase in cell attachment and cell viability. Examining various additives' amounts, we can further explore the possibility of reaching an optimum proportion of the ingredients. Compared with other UHMWPE-based nanocomposites (UHMWPE-HA-MWCNT's), the fabricated nanocomposite shows an improvement in tribological 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.

Tribological properties of Ni–P-multi-walled carbon nanotubes electroless composite coating

2003 ◽  
Vol 57 (7) ◽  
pp. 1256-1260 ◽  
Author(s):  
W.X Chen ◽  
J.P Tu ◽  
Z.D Xu ◽  
W.L Chen ◽  
X.B Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Composite Coating ◽  
Tribological Properties ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Tribological Properties of Stearic Acid Modified Multi-Walled Carbon Nanotubes in Water

2012 ◽  
Vol 135 (1) ◽  
Author(s):  
Yitian Peng ◽  
Zhonghua Ni
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Stearic Acid ◽  
Tribological Properties ◽  
Friction Reduction ◽  
Multiwalled Carbon ◽  
Transmission Electron ◽  
Multi Walled Carbon Nanotubes ◽  
Lubricant Application ◽  
Walled Carbon Nanotubes

The oxidized multiwalled carbon nanotubes (MWCNTs) were modified with stearic acid (SA) molecules. The SA-modified MWCNTs were characterized with scanning electron microscopy, transmission electron microscopy, and Fourier transform-infrared spectroscopy. The tribological properties of the oxidized and SA-modified MWCNTs as additives in water were comparatively investigated with a four-ball tester. The results showed the SA-modified MWCNTs in water have better tribological properties including friction reduction and antiwear than oxidized MWCNTs. The possible mechanism of SA-modified MWCNT as an additive in water was discussed. This research provides the opportunity for the lubricant application of MWCNTs.

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