Facile approach in fabricating superhydrophobic SiO2/polymer nanocomposite coating

2012 ◽  
Vol 261 ◽  
pp. 628-632 ◽  
Author(s):  
Hengzhen Chen ◽  
Xia Zhang ◽  
Pingyu Zhang ◽  
Zhijun Zhang
Keyword(s):  
Polymer Nanocomposite ◽  
Nanocomposite Coating

scholarly journals UHMWPE Nanocomposite Coatings Reinforced with Alumina (Al2O3) Nanoparticles for Tribological Applications

Coatings ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 280 ◽  
Author(s):  
Abdul Mohammed
Keyword(s):  
Normal Load ◽  
Polymer Nanocomposite ◽  
Polymer Coatings ◽  
Nanocomposite Coating ◽  
Efficient Solutions ◽  
Al2o3 Nanoparticles ◽  
Wear Life ◽  
Wear And Tear ◽  
Stainless Steel Ball ◽  
Micro Indentation

Due to a growing demand for protecting metallic components from wear and tear, polymer coatings are being extensively researched and developed as one of the most effective and efficient solutions to reduce friction and wear in demanding tribological applications. The present study focuses on developing a polymer nanocomposite coating of ultra-high molecular polyethylene (UHMWPE) reinforced with different loadings (0.5, 3, 5, and 10 wt %) of alumina to protect steel surfaces. Wear tests were conducted on the coated samples using a tribometer with a ball-on-disk configuration, sliding against a 440C hardened stainless steel ball as a counterface to evaluate the wear life and the load-bearing capacity of the developed coatings. Micro-indentation, energy dispersive X-ray spectroscopy, scanning electron microscopy, and optical profilometry techniques were used to characterize the coatings in terms of hardness, dispersion of the nanofillers, morphology, and wear mechanisms, respectively. Results showed that the UHMWPE nanocomposite coating reinforced with 3 wt % and 5 wt % of alumina did not fail, even until 250,000 cycles at a normal load of 12 N and a linear speed of 0.1 m/s, showing a significant improvement in wear resistance as compared to the pristine UHMWPE coating.

Antibacterial, highly hydrophobic and semi transparent Ag/plasma polymer nanocomposite coating on cotton fabric obtained by plasma based co-deposition

Cellulose ◽  
2019 ◽  
Vol 26 (16) ◽  
pp. 8877-8894 ◽  
Author(s):  
Muhammad Irfan ◽  
Oleksandr Polonskyi ◽  
Alexander Hinz ◽  
Chiara Mollea ◽  
Francesca Bosco ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Polymer Nanocomposite ◽  
Nanocomposite Coating ◽  
Plasma Polymer ◽  
Highly Hydrophobic

Tribological Evaluation of a UHMWPE Hybrid Nanocomposite Coating Reinforced With Nanoclay and Carbon Nanotubes Under Dry Conditions

2018 ◽  
Vol 140 (5) ◽  
Author(s):  
Muhammad Umar Azam ◽  
Mohammed Abdul Samad
Keyword(s):  
Carbon Nanotubes ◽  
Normal Load ◽  
Ultrahigh Molecular Weight Polyethylene ◽  
Polymer Nanocomposite ◽  
Nanocomposite Coating ◽  
Hybrid Nanocomposite ◽  
Ultrahigh Molecular Weight ◽  
Stainless Steel Ball ◽  
Dry Conditions ◽  
Aluminum Substrates

A novel hybrid polymer nanocomposite coating of ultrahigh molecular weight polyethylene (UHMWPE) reinforced with nanoclay (C15A) and carbon nanotubes (CNTs) has been developed to protect metallic mating surfaces in tribological applications. The hybrid nanocomposite coatings were deposited on aluminum substrates using an electrostatic spraying technique. Ball-on-disk wear tests using a 440C stainless steel ball as the counterface were conducted on the coatings under dry conditions to determine the optimum amount of the loadings of the nanofillers and evaluate their tribological performance at different normal loads and linear velocities. Micro-indentation, raman spectroscopy, scanning electron microscopy (SEM), and optical profilometry techniques were used to characterize the coatings in terms of hardness, dispersion of the nanofillers, morphology, and wear mechanisms, respectively. Results showed that the UHMWPE hybrid nanocomposite coating reinforced with 1.5 wt % of C15A nanoclay and 1.5 wt % of CNTs did not fail even until 100,000 cycles at a normal load of 12 N and a linear speed of 0.1 m/s showing a significant improvement in wear resistance as compared to all other coatings evaluated in this study.

Hierarchical polymer nanocomposite coating material for 316L SS implants: Surface and electrochemical aspects of PPy/f-CNTs coatings

Polymer ◽  
2014 ◽  
Vol 55 (21) ◽  
pp. 5417-5424 ◽  
Author(s):  
A. Madhan Kumar ◽  
P. Sudhagar ◽  
Akira Fujishima ◽  
Zuhair M. Gasem
Keyword(s):  
Polymer Nanocomposite ◽  
Nanocomposite Coating ◽  
Coating Material

scholarly journals Effect Dispersibility of MWCNT on the Mechanical and Tribological Performance of Polymer Nanocomposite Coating

2018 ◽  
Vol 26 (2) ◽  
pp. 1-7
Author(s):  
Ammar Al-kawaz
Keyword(s):  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Composite Coatings ◽  
Polymer Nanocomposite ◽  
Nanocomposite Coating ◽  
Tribological Performance ◽  
Matrix Composites ◽  
Chemical Compatibility ◽  
Interfacial Bond ◽  
The Impact

To utilize MWCNTs as influential reinforcement in polymer composites, reasonable dispersion and a satisfactory interfacial bond between the MWCNTs and polymer matrix must be ensured. The chemical modification of carbon nanotube surface (CNTs) could enhance their chemical compatibility and dispersibility with the polymer matrix. In this study, polymer matrix composites reinforced by pristine MWCNT and MWCNT grafted PMMA (CNTPMMA) were prepared. A comparative study executed to analyze the impact of MWCNT dispersion on the mechanical and tribological performance of the resultant polymer nanocomposite coating. The results showed that the dispersion of carbon nanotubes in the base polymeric material was improved after being grafted with polymethyl meth acrylate chains, and thus improved their mechanical and tribological performance in the composite coatings.

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