scholarly journals Epoxy\Epoxy Composite\Epoxy Hybrid Composite Coatings for Tribological Applications—A Review

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 179
Author(s):  
M. M. A. Baig ◽  
M. Abdul Samad

Epoxy composite coating systems generally find their usage in applications such as, fluid handling systems to protect components from corrosive media. However, their use in demanding tribological applications such as, in sliding components of machines, are known to be limited. This is often attributed to their low load bearing capacity combined with poor thermal stability under severe p-v regimes. Researchers have tried to enhance the tribological properties of the epoxy coatings using a combination of several types of micro/nano sized fillers to produce composite or hybrid composite coatings. Hence, this review paper aims to focus on the recent advances made in developing the epoxy coating systems. Special attention would be paid to the types and properties of nano-fillers that have been commonly used to develop these coatings, different dispersion techniques adopted and the effects that each of these fillers (and their combinations) have on the tribological properties of these coatings.

2019 ◽  
Vol 40 (1) ◽  
pp. 57-66
Author(s):  
Jinwei Wang ◽  
Xiangming Guo ◽  
Di Wu

Abstract Epoxy composites were modified by reactive polybutadiene, and their resistance to T-bend and liquid permeation was evaluated to develop flexible epoxy composite coatings with good resistance to corrosive media. The composites’ resistance to bending on galvanic sheets was improved with the addition of up to around 15 wt.% amino liquid polybutadiene (ALPB) as reflected by the cross-section images after bending tests and bending times at break. The initial impedance increased with the addition of up to 15 wt.% ALPB in the composites, whereas the resistance reduced in a much slow rate with immersion time for the sample containing ALPB at around 10 wt.%. This result suggested that their resisting ability depended on the amount and dispersion of ALPB. The Rc and Cc parameters from the electrochemical impedance spectroscopy measurements revealed that the improvement in resistance to electrolyte resulted from the compactness increment at certain range of ALPB additions, which was also supported by their water uptake trends. Moreover, the addition of ALPB above 20% resulted in severe aggregations and phase separations. The resulting reduced compactness reflects the fact that the excessive reactive rubber addition leads to the negative effects on their resisting ability upon both T-bend and liquid permeation.


2018 ◽  
Vol 434 ◽  
pp. 1311-1320 ◽  
Author(s):  
Jingjing Yu ◽  
Wenjie Zhao ◽  
Yinghao Wu ◽  
Deliang Wang ◽  
Ruotao Feng

2020 ◽  
Vol 146 ◽  
pp. 106244 ◽  
Author(s):  
Akeem Yusuf Adesina ◽  
Ibrahim H. Zainelabdeen ◽  
M.A. Dalhat ◽  
Abdul Samad Mohammed ◽  
Ahmad A. Sorour ◽  
...  

2017 ◽  
Vol 93 ◽  
pp. 79-86 ◽  
Author(s):  
Lingqian Wang ◽  
Jiansong Zhou ◽  
Benbin Xin ◽  
Youjun Yu ◽  
Shufang Ren ◽  
...  

2021 ◽  
pp. 51878
Author(s):  
Yuwen Liao ◽  
Lin Cao ◽  
Qiwei Wang ◽  
Shuangjian Li ◽  
Zhidan Lin ◽  
...  

2019 ◽  
Vol 6 (9) ◽  
pp. 0950a8
Author(s):  
She Jia ◽  
Zhengjun Yao ◽  
Shasha Zhang ◽  
Zelei Zhang ◽  
Xuewei Tao ◽  
...  

Author(s):  
Prasanna Gadhari ◽  
Prasanta Sahoo

Electroless nickel composite coatings possess excellent mechanical and tribological properties such as, hardness, wear and corrosion resistance. Composite coatings can easily be coated not only on electrically conductive materials but also on non-conductive materials like as fabrics, plastics, rubber, etc. This review emphasizes on the development of electroless nickel composite coatings by incorporating different types of hard/soft particles (micro/nano size) in the electroless Ni-P matrix to improve the mechanical and tribological properties of the coatings. The preparation of electroless bath for nickel-phosphorus composite coating, methods to incorporate hard and/or soft particles in the bath, factors affecting the particle incorporation in the coating and its effect on coating structure, hardness, wear resistance, friction behavior, corrosion resistance, and mechanical properties are discussed thoroughly.


Sign in / Sign up

Export Citation Format

Share Document