Corrosion Resistance of Waterborne Epoxy Coatings by Incorporation of Dopamine Treated Mesoporous-TiO2 Particles

Wang, Na; Diao, Xinlin; Zhang, Jing; Kang, Peng

doi:10.3390/coatings8060209

Cited by 41 publications

(24 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Thus, the protection of stone-built cultural heritage has attracted the attention of researchers in various fields. Stone-built cultural heritage exposed to weather conditions can be damaged by acid rain corrosion [1][2][3][4], industrial pollution [5,6], microbial erosion [7,8], and soluble salt crystallization [9]. Coating stone is an effective way to protect stone-built cultural relics from damage [10].…”

Section: Introductionmentioning

confidence: 99%

Study of TiO2-Modified Sol Coating Material in the Protection of Stone-Built Cultural Heritage

et al. 2020

View full text Add to dashboard Cite

Coating materials can effectively protect stone-built cultural heritage and, as such, research into coating materials has gained comprehensive attention from researchers. The aim of this work is to prepare a TiO 2 -modified sol coating material (TSCM) and study its protective effects on stone-built cultural heritage. TSCM and pure TiO 2 sol (p-sol, unmodified; for comparison) were applied evenly over the entire surface of stone samples. The prepared stone samples included untreated stone, stone treated with pure sol, and stone treated with TSCM. The protective effects of TSCM were evaluated by water absorption, water vapor permeability, acid resistance, and weather resistance experiments. The results show that stone treated with TSCM has excellent water absorption and water vapor permeability, strong acid resistance, and good weather resistance, compared with untreated stone or stone treated with p-sol. The acid resistance of stone treated by TSCM was 1.75 times higher than that treated with traditional coating materials. The weather resistance cycle number of stone treated by TSCM was four times higher than that treated with organic protective materials. These findings are expected to provide useful suggestions for the protection of stone-built cultural heritage.Coatings 2020, 10, 179 2 of 11 or added to acrylic polymers [22][23][24], but they could be easily removed from the coating surface owing to weak bonding [25][26][27]. In order to avoid the loss of TiO 2 nanoparticles, some researchers have proposed to composite TiO 2 nanoparticles into a SiO 2 -sol [28], which can enhance its photocatalytic activity when applied to a building. To the best of our knowledge, there have been no scientific studies about compositing TiO 2 nanoparticles into a TiO 2 -sol for the protection of stone-built cultural heritage. More importantly, the method presented in the work of [28] provides us with valuable suggestions about the protection of stone-built cultural heritage. Hence, it is necessary to investigate a modified TiO 2 -sol with significant protective effect on stone-built cultural heritage.The aim of this paper is to prepare a TiO 2 -modified sol coating material (TSCM) that is capable of protecting stone-built cultural heritage. Analyses of the composition and microscopic morphology of TSCM were conducted using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Some experiments were conducted to evaluate the protective effects of TSCM, in terms of wettability, weather resistance, and acid resistance. The results suggest that TSCM has excellent water absorption, water vapor permeability, acid resistance, and weather resistance. The study, therefore, provides a new method for the protection of stone-built cultural heritage.

show abstract

Section: Introductionmentioning

confidence: 99%

Study of TiO2-Modified Sol Coating Material in the Protection of Stone-Built Cultural Heritage

et al. 2020

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

“…However, because of strong van der Waals forces and high specific ratio, G, GO or rGO tend to easily aggregate each other, which greatly limits their functional development and industrial applications [5][6][7]. The chemical modification of G, GO or rGO is an efficient method to limit the aggregation, and at the same time, the anticorrosion performance of the nanocomposite coating is enhanced [8][9][10][11][12][13][14][15][16][17][18][19].GO-PMMA(polymethyl methacrylate) composites were prepared by Chang in the presence of carboxyl compounds, which prevents the agglomeration of graphene in acrylate resin, and the anticorrosion property is twenty-seven times higher than that of pure PMMA film [20]. Polyaniline/4-aminobenzoic acid was also employed by Chang to modify graphene, and the PANI(polyaniline)-G composite with 0.5 wt.% content can reduce the diffusion rate of water and oxygen to 22% and 24% [21].…”

mentioning

confidence: 99%

Reduced Graphene Oxide–Epoxy Grafted Poly(Styrene-Co-Acrylate) Composites for Corrosion Protection of Mild Steel

Fan

Zhang

et al. 2019

Coatings

View full text Add to dashboard Cite

Reduced graphene oxide–epoxy grafted poly(styrene-co-acrylate) composites (GESA) were prepared by anchoring different amount of epoxy modified poly(styrene-co-acrylate) (EPSA) onto reduced graphene oxide (rGO) sheets through π–π electrostatic attraction. The GESA composites were characterized by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The anti-corrosion properties of rGO/EPSA composites were evaluated by electro-chemical impedance spectroscopy (EIS) in hydroxyl-polyacrylate coating, and the results revealed that the corrosion rate was decreased from 3.509 × 10−1 to 1.394 × 10−6 mm/a.

show abstract

“…Recent developments showed very good results and enhancement of the release control using layered double hydroxides, zeolites, hollow fibers, particles, capsules or more unusual ones such as algae exoskeletons . Each one of these systems has shown protective properties when filled with inhibitors, despite sometimes a decrease in passive protection .…”

Section: Introductionmentioning

confidence: 99%

Incorporation of silica nanocontainers and its impact on a waterborne polyurethane coating

Loison

Denis²,

Groult

et al. 2019

Materials & Corrosion

View full text Add to dashboard Cite

In the present work, we describe the development and characterization of a versatile smart coating containing an encapsulated inhibitor. This includes the synthesis and characterization of hollow spherical nanocapsules with diameters ranging from 180 to 200 nm. These particles are able to release their payload when exposed to an alkaline environment, what could be induced by corrosionlinked processes. A corrosion inhibitor, namely 2-mercaptobenzothiazole has been encapsulated, after what the capsules were incorporated in a polyurethane (PU) matrix; optimization of the process led to homogeneous coatings with a good dispersion of silica assessed by micro-fluorescence spectroscopy. Electrochemical impedance spectroscopy highlighted a negative effect of the capsules' addition to the PU network, affecting the coating's barrier properties. However, the release of the inhibitor upon water ingress in the coating and potential short-term protection was seen. Nevertheless, tests conducted on coatings with artificial defects could not lead to a reduction of the corrosion rate, probably due to the large size of the defects. K E Y W O R D Scorrosion protection, electrochemical impedance spectroscopy, silica incorporation, smart coatings

show abstract

Corrosion Resistance of Waterborne Epoxy Coatings by Incorporation of Dopamine Treated Mesoporous-TiO2 Particles

Cited by 41 publications

References 34 publications

Study of TiO2-Modified Sol Coating Material in the Protection of Stone-Built Cultural Heritage

Study of TiO2-Modified Sol Coating Material in the Protection of Stone-Built Cultural Heritage

Reduced Graphene Oxide–Epoxy Grafted Poly(Styrene-Co-Acrylate) Composites for Corrosion Protection of Mild Steel

Incorporation of silica nanocontainers and its impact on a waterborne polyurethane coating

Contact Info

Product

Resources

About