Porous Microcapsule-Based Regenerating Superhydrophobic Coating on 304L SS and Its Corrosion Properties

Rasitha, T.P.; Vanithakumari, S.C.; George, R.P.; Philip, John

doi:10.1007/s11665-019-04425-0

Cited by 13 publications

(3 citation statements)

References 49 publications

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“…Mild steel showed the least contact angle of 153.3°±2.1°, while titanium possessed 157.0°±1.3°. The high values of the contact angles observed with stainless steel and titanium substrates could be associated with the roughness factor as a function of the actual area/ projected areas ratio and air pockets emanated from the microscopic pores in the coatings [20]. The variance in the contact angles can also be attributed to the influence of the elementary composition of the substrates that resulted in degrees of roughness [21].…”

Section: Resultsmentioning

confidence: 97%

Effect of substrates on the chemical characteristics and evolving structures of an organic superhydrophobic coating

Baruwa,

Makhatha,

Akinlabi

2023

Materialwissenschaft Werkst

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While recent research has used organic coatings to replace chromium‐based coatings, the ability of a coating material to repeat its chemical properties on different substrates is still under investigation. The Repellix superhydrophobic compound was developed and deposited on three different substrates using the atomic layer deposition method under the same condition. The films were characterized using the scanning electron microscope, atomic force microscope, water contact angle, attenuated Fourier transform infrared, and x‐ray diffractometer. The surface morphology revealed that microstructural evolutions and topologies are different. The roughness of the coating deposited on stainless steel is the highest at 38.39 nanometers, while mild steel substrate showed the least surface roughness at 28.66 nanometers. From observations, the roughness also contributed to the degree of superhydrophobicity of the films deposited on substrates. The multiple hydroxyl functional groups observed in the Fourier transform spectroscopy in the range 3200 cm−1 to 4000 cm−1 would aid the adhesion of deposited films to the substrates. The x‐ray diffraction results showed that all substrates had chemical stability, and the Repellix compound is amorphous on all substrates. Stainless steel showed to be the most robust among the substrates considered.

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Section: Resultsmentioning

confidence: 97%

Effect of substrates on the chemical characteristics and evolving structures of an organic superhydrophobic coating

Baruwa,

Makhatha,

Akinlabi

2023

Materialwissenschaft Werkst

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“…This contact angle measurement is carried out by photographing water droplets on the concrete surface using a camera and measuring it using Image-J software. Concrete material can be said to be hydrophobic if water dripping on the surface rolls well as evidenced by a contact angle ≥ 90 o (She et al, 2018;Shen et al, 2018;Rasitha et al, 2019). The resulting contact angle is in Figure 3.…”

Section: Xrdmentioning

confidence: 99%

Synthesis and Characterization of Hydrophobic and Self Healing Concrete Materials Based on Microorganisms

Maulida,

Ratnawulan,

Riri Jonuarti

et al. 2023

jppipa, pendidikan ipa, fisika, biologi, kimia

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The high water absorption of concrete causes the concrete to easily experience cracking and damage. One way to increase the durability of concrete is by adding microbes which can fill the micro cavities in the concrete with the resulting Calcium Carbonate (CaCO3) deposits. However, the weakness of using microorganisms is that they are unable to withstand high hydration heat. Therefore, by varying the temperature in this research, it is possible to determine the effect of the metabolism of the bacteria produced. This research was carried out to avoid damage by creating a hydrophobic and self-healing layer which helps increase the durability and strength of the concrete. The concrete sample made resembles a cube measuring 5 cm x 5 cm x 5 cm. The manufacturing materials are Portland cement, Otawa sand, distilled water and a mixture of E. coli bacteria. Heating was carried out using an oven at temperatures of 30, 60, 90, and 120 oC. Characterization testing was carried out using a Cpmreson machine, XRD and contact angle testing.

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“…Rasitha et al . have fabricated mechanically durable superhydrophobic titanium surface through fast breakdown anodization, which displayed admirable abrasion resistance and self‐cleaning properties [22] . Rasitha et al .…”

Section: Introductionmentioning

confidence: 99%

Controlling Superhydrophobicity of Aluminum with Hierarchical Micro‐Nanostructure Film for Superb Self‐Cleaning and Anti‐Corrosion

Zhang

et al. 2022

ChemistrySelect

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In this study, typical electrodeposition method was proposed to fabricate uniform CuO hierarchical micro-nanostructure on aluminum (Al) substrate. The superhydrophobic protective film was then fabricated by modifying stearic acid (STA) on this hierarchical CuO film. The static water contact angle reached up to 163°by coating CuO/STA film on Al substrate, and the rolling-off angle was as low as 3.7°. In addition, CuO/STA coated Al displayed wonderful non-sticking performance when the free-falling water droplets contact the surface. As expected, superb anti-corrosion properties of Al were achieved by coating superhydrophobic CuO/STA film on Al. The corrosion current density of CuO/STA coated Al decreased 2 orders of magnitude comparing with that of pristine Al, and the corrosion protection efficiency of CuO/STA coated Al reached up to 98 % in comparison with pristine Al. Therefore, superhydrophobic CuO/ STA film coated Al substrate greatly prolong the working life of Al materials in harsh working condition. The universal method used in this study also provides a potential route for coating superhydrophobic and anti-corrosion protective film on other metallic substrates or conductive substrates.

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Porous Microcapsule-Based Regenerating Superhydrophobic Coating on 304L SS and Its Corrosion Properties

Cited by 13 publications

References 49 publications

Effect of substrates on the chemical characteristics and evolving structures of an organic superhydrophobic coating

Effect of substrates on the chemical characteristics and evolving structures of an organic superhydrophobic coating

Synthesis and Characterization of Hydrophobic and Self Healing Concrete Materials Based on Microorganisms

Controlling Superhydrophobicity of Aluminum with Hierarchical Micro‐Nanostructure Film for Superb Self‐Cleaning and Anti‐Corrosion

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