Effect of curing agent molecular structures on the tribological and corrosion behaviors of epoxy resin coatings

Liú, Dan; Zhao, Wenjie; Wu, Fengshun; Cen, Qihong; Zeng, Zhixiang; Wu, Xuedong; Xue, Qunji

doi:10.1016/j.colsurfa.2015.02.036

Cited by 37 publications

(23 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From a kinetics point of view, lower corrosion rate and corrosion current density reflect less tendency to corrode. On the other hand, from a thermodynamic perspective, a more noble corrosion potential reflects less tendency to corrode …”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, from a thermodynamic perspective, a more noble corrosion potential reflects less tendency to corrode. 44,45 According to the results obtained from the Tafel test, as well as the data given in Table III, the ESC-10 and ESM-10 samples have low corrosion rate (0.25 mpy for ESC-10 and 0.36 mpy for ESM-10) and corrosion current densities (0.42 mA/cm 2 for ESC-10 and 0.62 mA/cm 2 for ESM-10) in comparison to the samples containing 20 wt % SiAlON and pure specimens. Hence, it can be concluded that the ESM-10 and ESC-10 samples have good corrosion-resistance performance compared to other samples.…”

Section: Article Wileyonlinelibrarycom/appmentioning

confidence: 99%

See 1 more Smart Citation

SiAlON–epoxy nanocomposite coatings: Corrosion and wear behavior

Moradi

Aliofkhazraei

Toorani

et al. 2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

In this study, epoxy powder as a matrix was combined with different contents of silicon–aluminum–oxygen–nitrogen (SiAlON) nanoparticles using a planetary ball mill. Pure epoxy and nanocomposite powders were applied on the surface of plain carbon steel components by the electrostatic spraying method. Curing of the coatings was done in an oven or microwave for the appropriate time. The coating structure and morphology of the SiAlON nanoparticles were studied by scanning electron microscopy and transmission electron microscopy, respectively. The corrosion properties of the coatings were assessed by immersion, Tafel polarization, and electrochemical impedance spectroscopy tests in 3.5% NaCl solution. The results show that addition of 10 wt % SiAlON nanoparticles markedly increases the corrosion resistance of epoxy coatings. Thus, it can be inferred that the corrosion rate of these coatings is 15 to 18 times lower than that of pure epoxy samples and 8 to 11 times lower than coatings with 20 wt % SiAlON. The higher corrosion resistance of nanocomposite coatings can be attributed to the barrier properties of SiAlON nanoparticles. The tribological performance of the coatings was studied with the pin‐on‐disk test. The results of wear testing show that the samples containing 10 wt % SiAlON provide about five times more wear resistance than pure ones and about two times more than coatings with 20 wt % SiAlON. However, the coefficient of friction for nanocomposite coatings is reduced about 50% compared to the pure sample. Also, the curing process in either regime (oven or microwave) has the same effect on the corrosion and wear properties, and the coatings are completely crosslinked. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43855.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Article Wileyonlinelibrarycom/appmentioning

confidence: 99%

SiAlON–epoxy nanocomposite coatings: Corrosion and wear behavior

Moradi

Aliofkhazraei

Toorani

et al. 2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…The tribological properties of epoxy resin coatings are also affected by the molecular structure of curing agents. Dan Liu et al [ 18 ] used three types of curing agents such as, the chain-shaped diethylenetriamine (DETA), ring with side-chain shaped isophorone diamine (IPDA)and benzene-shaped m-phenylenediamine (m-PDA), respectively, to cure epoxy resin coatings. The linear and flexible chain structure of DETA promoted the sliding process resulting in lowest friction coefficient.…”

Section: Modification Of Epoxy Resins For Improved Propertiesmentioning

confidence: 99%

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

Baig¹,

Samad²

2021

Polymers

View full text Add to dashboard Cite

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.

show abstract

“…The substrate corrosion may even occur while an organic coating is curing, which can adversely influence the protection performance of the coating after curing. For example, during polymerization of an epoxy coating, crosslink reaction occurs between the epoxy and curing agent [90][91][92]. The epoxy resin offers epoxy groups for the crosslinking [69], while the curing agent, including aliphatic, cycloaliphatic and aromatic amines or polyamides [93], provides active hydrogen to open the epoxy.…”

Section: Substrate Effectmentioning

confidence: 99%

Modification, Degradation and Evaluation of a Few Organic Coatings for Some Marine Applications

Song

Feng

2020

CMD

View full text Add to dashboard Cite

Organic coatings for marine applications must have great corrosion protection and antifouling performance. This review presents an overview of recent investigations into coating microstructure, corrosion protection performance, antifouling behavior, and evaluation methods, particularly the substrate effect and environmental influence on coating protectiveness, aiming to improve operational practice in the coating industry. The review indicates that the presence of defects in an organic coating is the root cause of the corrosion damage of the coating. The protection performance of a coating system can be enhanced by proper treatment of the substrate and physical modification of the coating. Environmental factors may synergistically accelerate the coating degradation. The long-term protection performance of a coating system is extremely difficult to predict without coating defect information. Non-fouling coating and self-repairing coatings may be promising antifouling approaches. Based on the review, some important research topics are suggested, such as the exploration of rapid evaluation methods, the development of long-term cost-effective antifouling coatings in real marine environments.

show abstract

Effect of curing agent molecular structures on the tribological and corrosion behaviors of epoxy resin coatings

Cited by 37 publications

References 27 publications

SiAlON–epoxy nanocomposite coatings: Corrosion and wear behavior

SiAlON–epoxy nanocomposite coatings: Corrosion and wear behavior

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

Modification, Degradation and Evaluation of a Few Organic Coatings for Some Marine Applications

Contact Info

Product

Resources

About