Stearic acid modified zinc nano-coatings with superhydrophobicity and enhanced antifouling performance

Feng, Yuanchao; Chen, Shougang; Cheng, Y. Frank

doi:10.1016/j.surfcoat.2018.02.053

Cited by 60 publications

(17 citation statements)

References 30 publications

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“…Stearic acid (Sa) has suitable phase transition temperature, higher phase transition enthalpy, and good thermal stability 16,17 . The modification of inorganic particles by Sa has also been reported 18–20 . Sa is made up of two parts: a hydrophobic tail and a hydrophilic head.…”

Section: Introductionmentioning

confidence: 99%

Surface analysis of stearic acid modification for improving thermal resistant of calcium phosphate coated iron oxide yellow pigments

Pan

Cao

et al. 2020

Surface & Interface Analysis

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In order to widen the application of iron oxide yellow pigments (α‐FeOOH) in high temperature industry, α‐FeOOH coated with calcium phosphate (α‐FeOOH/Ca) were modified with stearic acid (Sa) through dry process. Scanning electron microscope (SEM), transmission electron microscope (TEM), X‐ray diffraction (XRD), Fourier transform infrared spectroscopy (FT‐IR), X‐ray photoelectron spectroscopy (XPS), and thermogravimetry (TG) were employed to characterize the effect of surface modification. The effects of Sa dosage on the thermal resistance of α‐FeOOH/Ca after modification were also discussed. The crystal structure of α‐FeOOH/Ca does not change after modification with Sa, but the ratio of length to diameter about α‐FeOOH/Ca is smaller. Sa can react with α‐FeOOH/Ca in the form of –COOCa and HPO42− based on FT‐IR and XPS analyses. TG‐DTG results suggest that calcium phosphate and Sa improve the thermal stability of α‐FeOOH. The value of color difference of modified α‐FeOOH/Ca first decrease and then increase with increasing of Sa dosage, which is studied by CIE ΔL, Δa, and Δb colorimetric analyses. The amount of Sa affects the thermal resistance and dispersion performance of α‐FeOOH/Ca simultaneously; also the relationship between thermal resistance and dispersion is inversely proportional. Experimental characterizations reveal that introduction of the phosphates and Sa not only prevents the loss of water on the surface of α‐FeOOH but improve its activation index and dispersibility in organic solvents.

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Section: Introductionmentioning

confidence: 99%

Surface analysis of stearic acid modification for improving thermal resistant of calcium phosphate coated iron oxide yellow pigments

Pan

Cao

et al. 2020

Surface & Interface Analysis

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“…Generally, the hydrophobicity of a surface requires a combination of roughing surfaces and low-surface-energy materials [ 21 ]. Long chain stearic acid provides low-surface-energy coating for different surfaces [ 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ].…”

Section: Resultsmentioning

confidence: 99%

Stearic Acid/Layered Double Hydroxides Composite Thin Films Deposited by Combined Laser Techniques

et al. 2020

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We report on the investigation of stearic acid-layered double hydroxide (LDH) composite films, with controlled wettability capabilities, deposited by a combined pulsed laser deposition (PLD)-matrix-assisted pulsed laser evaporation (MAPLE) system. Two pulsed lasers working in IR or UV were used for experiments, allowing the use of proper deposition parameters (wavelength, laser fluence, repetition rate) for each organic and inorganic component material. We have studied the time stability and wettability properties of the films and we have seen that the morphology of the surface has a low effect on the wettability of the surfaces. The obtained composite films consist in stearic acid aggregates in LDH structure, exhibiting a shift to hydrophobicity after 36 months of storage.

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“…The peak at 1390 cm À1 are assigned to the bending vibration of -CH 3 . 34 What's more, the transmittance of the peaks at 2920 and 2850, 1534 cm À1 of the superhydrophobic mesh obviously enhanced, which can be attributed to modied stearic acid. A combination of SEM, XPS and FTIR results show that the microand nano-scale hierarchical structures are constructed and low surface energy materials are successfully modied on the stainless steel mesh surface through this facile approach.…”

Section: Surface Morphology and Chemical Composition Analysismentioning

confidence: 96%

Facile fabrication of zinc oxide coated superhydrophobic and superoleophilic meshes for efficient oil/water separation

Zhang

Wang

et al. 2018

RSC Adv.

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Stearic acid modified zinc nano-coatings with superhydrophobicity and enhanced antifouling performance

Cited by 60 publications

References 30 publications

Surface analysis of stearic acid modification for improving thermal resistant of calcium phosphate coated iron oxide yellow pigments

Surface analysis of stearic acid modification for improving thermal resistant of calcium phosphate coated iron oxide yellow pigments

Stearic Acid/Layered Double Hydroxides Composite Thin Films Deposited by Combined Laser Techniques

Facile fabrication of zinc oxide coated superhydrophobic and superoleophilic meshes for efficient oil/water separation

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