Conducting polyaniline/nano-zinc phosphate composite as a pigment for corrosion protection of low-carbon steel

Deshpande, Pravin P.; Bhopale, Abhijit A.; Mooss, Vandana A.; Athawale, Anjali A.

doi:10.1007/s11696-016-0082-7

Cited by 21 publications

(8 citation statements)

References 15 publications

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“…Earlier, we have reported PANI/Zn 3 (PO 4 ) 2 and PANI/ZnO composites as pigment for corrosion protection and biofouling mitigation applications, respectively . In continuation with this work, in the present study, we report the corrosion resistance property of PPy/ZnO microcomposites synthesized by chemical oxidation polymerization method containing very low concentrations of ZnO (1, 2, and 5 wt%).…”

Section: Introductionsupporting

confidence: 67%

“…Corrosion resistance property of PPy and PPy/ZnO composites were measured in terms of corrosion rate (mpy) by adopting the previous method . In this method, the corrosion cell having a three‐electrode geometry of paint‐coated sample as working electrode (8 cm 2 ), platinum as counter electrode, and saturated calomel electrode (SCE; pH Products, Hyderabad, India) as a reference electrode was used.…”

Section: Methodsmentioning

confidence: 99%

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Fabrication of ZnO‐functionalized polypyrrole microcomposite as a protective coating to enhance anticorrosion performance of low carbon mild steel

Satpal

Bhopale²,

Deshpande³

et al. 2019

J of Applied Polymer Sci

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In the present work, PPy, ZnO, and polypyrrole/zinc oxide (PPy/ZnO) microcomposites (1, 2, and 5 wt%) were prepared and their properties have been tuned for anticorrosion applications on low carbon mild steel. The synthesized products: ZnO, PPy, and composites were characterized by various sophisticated analytical techniques such as XRD, FTIR, Raman, FESEM, EDX, UV–VIS, TGA, and BET. The band frequencies observed at 480 and 588 cm−1 in FTIR spectrum correspond to stretching vibrations of Zn‐O and N‐H bonds, respectively, broadening of the bands in the composites indicate strong interactions between ZnO and PPy matrix. The potentiodynamic polarization study of PPy and PPy/ZnO composite was carried out in 3.5% NaCl solution to investigate the corrosion resistance efficiency. PPy/1 wt% ZnO (Icorr = 190 nA) composite coating on low carbon mild steel was observed to exhibit best corrosion protection property compared to PPy (121 μA), 2 and 5 wt% ZnO (242, 295 nA) composites. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48319.

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Section: Introductionsupporting

confidence: 67%

Section: Methodsmentioning

confidence: 99%

Fabrication of ZnO‐functionalized polypyrrole microcomposite as a protective coating to enhance anticorrosion performance of low carbon mild steel

Satpal

Bhopale²,

Deshpande³

et al. 2019

J of Applied Polymer Sci

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“…According to industry standard HG/T 3668-2000, the non-volatile minute metal zinc content in inorganic zinc-rich primer is not less than 80 wt.%. Relevant experimental studies show that increasing the content of zinc powder in waterborne inorganic zinc-rich primer can obviously shorten the curing time and improved the protection effect of substrate in the salt spray resistance test [41][42][43][44]. In order to make the simulation model accord with the experimental situation, the zinc powder content was set as 90 wt.%.…”

Section: Blending Model Of Inorganic High Modulus Zinc Silicate Coatingmentioning

confidence: 99%

Molecular Dynamics Simulation of Interface Properties between Water-Based Inorganic Zinc Silicate Coating Modified by Organosilicone and Iron Substrate

Gao¹,

Xiong²,

Zhang³

et al. 2023

Journal of Renewable Materials

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The interface properties of Fe(101)/zinc silicate modified by organo-siloxane (KH-570) was studied by using the method of molecular dynamics simulation. By calculating the temperature and energy fluctuation of equilibrium state, equilibrium concentration distribution, MSD of layer and different groups, and interaction energy of two interface models, the influencing mechanism on the interface properties of adding organosiloxane into coating system was studied at the atomic scale. It shows that the temperature and energy of interface oscillated in a small range and it was exited in a state of dynamic equilibrium within the initial simulation stage (t < 20 ps). It can be seen from the multiple peak states of concentration distribution that the iron substrate, organo-siloxane and zinc silicate are distributed in the form of a concentration gradient in the real environment. The rapid diffusion of free zinc powder in zinc silicate coating was the essential reason that affected the comprehensive properties of coating. The interface thickness decreased from 7.45 to 6.82 Å, the MSD of free zinc powder was effectively reduced, and the interfacial energy was increased from 104.667 to 347.158 kcal/mol after being modified by organo-siloxane.

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“…PANI is a two-dimensional conductive polymer with unique electrochemical properties. − PANI and its derivatives have been extensively used in metal anticorrosion coatings. , PANI uniquely exists in three different oxidation states: the reduced leucoemeraldine base, the half-oxidized emeraldine base, and the fully oxidized pernigraniline base . The dynamic transition capability of PANI is a significant advantage in its application as an anticorrosion agent.…”

Section: Introductionmentioning

confidence: 99%

Two-Dimensional Zinc Silicate/Polyaniline Nanocomposites Enhance the Anticorrosion Properties of Epoxy Resin Coatings

Huang,

Zhao,

Zeng

et al. 2024

ACS Appl. Nano Mater.

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Combining two-dimensional nanostructure multioxidation state conductive polymers with traditional inorganic inhibitors to enhance the anticorrosion ability of epoxy resin coatings is an interesting research topic. In this work, the zinc silicate/polyaniline (Zn 2 SiO 4 /PANI) composite was successfully synthesized through hydrothermal and in situ polymerization methods. The two-dimensional plate-like nanostructure of the composite significantly improved the shielding effect. Moreover, the inherent semiconductivity of the composite, via the synergistic action of electrochemical protection effect and microcapacitance effect, substantially enhanced the anticorrosion properties of the epoxy resin coatings. After the immersion test in a 3.5 wt % NaCl solution, the electrochemical impedance of the Zn 2 SiO 4 /PANI composite coating was 585.8% of that of blank epoxy resin, demonstrating exceptional anticorrosion performance. This work highlights the efficacy of two-dimensional nanostructure conductive composites for preparing anticorrosion inhibitors.

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Conducting polyaniline/nano-zinc phosphate composite as a pigment for corrosion protection of low-carbon steel

Cited by 21 publications

References 15 publications

Fabrication of ZnO‐functionalized polypyrrole microcomposite as a protective coating to enhance anticorrosion performance of low carbon mild steel

Fabrication of ZnO‐functionalized polypyrrole microcomposite as a protective coating to enhance anticorrosion performance of low carbon mild steel

Molecular Dynamics Simulation of Interface Properties between Water-Based Inorganic Zinc Silicate Coating Modified by Organosilicone and Iron Substrate

Two-Dimensional Zinc Silicate/Polyaniline Nanocomposites Enhance the Anticorrosion Properties of Epoxy Resin Coatings

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