Anti-corrosion zinc phosphate coating on building steel via a facile one-step brushing method

Jiang, Congcong; Cheng, Xin

doi:10.1016/j.elecom.2019.106596

Cited by 21 publications

(10 citation statements)

References 16 publications

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“…In particular, the lattice distortion of SrCaP and SrCaP-Zn1 coatings caused by Ca doping leads to thermodynamic instability and increases solubility in SBF, thus exhibiting weaker corrosion resistance compared with SrCaP-Zn4 coating. By comparison, Zn-containing phosphate coating has been widely used as a protective anticorrosion coating in industrial production due to its excellent corrosion resistance . The SrCaP-Zn4 coating contains a high amount of Zn element and its main phase is transformed into SrZn 2 (PO 4 ) 2 with high crystallinity and stability, which contributes to its excellent corrosion resistance.…”

Section: Resultsmentioning

confidence: 99%

“…By comparison, Zn-containing phosphate coating has been widely used as a protective anticorrosion coating in industrial production due to its excellent corrosion resistance. 60 The SrCaP-Zn4 coating contains a high amount of Zn element and its main phase is transformed into SrZn 2 (PO 4 ) 2 with high crystallinity and stability, which contributes to its excellent corrosion resistance.…”

Section: Methodsmentioning

confidence: 99%

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Zinc-Doping Induces Evolution of Biocompatible Strontium–Calcium-Phosphate Conversion Coating on Titanium to Improve Antibacterial Property

Zuo

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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Implant-associated infections (IAI) remains a common and devastating complication in orthopedic surgery. To reduce the incidence of IAI, implants with intrinsic antibacterial activity have been proposed. The surface functionalization and structure optimization of metallic implants can be achieved by surface modification using the phosphate chemical conversion (PCC) technique. Zinc (Zn) has strong antibacterial behavior toward a broad-spectrum of bacteria. Herein, Zn was incorporated into strontium−calcium-phosphate (SrCaP) coatings on titanium (Ti) via PCC method, and the influence of its doping amount on the phase, microstructure, antibacterial activity, and biocompatibility of the composite coating was researched. The results indicated that traces of Zn doping produced grain refinement of SrCaP coating with no significant effect on its phase and surface properties, while a higher Zn content induced its phase and microstructure transformed into zinc−strontium-phosphate (SrZn 2 (PO 4 ) 2 ). SrCaP-Zn1 and SrCaP-Zn4 represented trace and high content Zn-doped coatings, respectively, which exhibited a similar bacterial attachment for a short time but showed inhibition of biofilm formation after continuous incubation up to 24 h. The killing rates of SrCaP-Zn1 coating for Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) reached 61.25% and 55.38%, respectively. While that data increased to 83.01% and 71.28% on SrCaP-Zn4 coating due to the more-releasing Zn 2+ . Furthermore, in vitro culture of MC3T3-E1 cells proved that the Zn-doped coatings also possessed excellent biocompatibility. This study provides a new perception for the phase and microstructural optimization of phosphate coatings on implant surfaces, as well as fabricating promising coatings with excellent biocompatibility and antimicrobial properties against IAI.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Zinc-Doping Induces Evolution of Biocompatible Strontium–Calcium-Phosphate Conversion Coating on Titanium to Improve Antibacterial Property

Zuo

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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“…Many attempts have been made in this regard to reduce the risk of soil corrosion on submerged steel and concrete structures. Organic, inorganic and metal coatings such as Zn, Al and Ni are considered to be very effective means to protect submerged assets from premature corrosion and degradation [3]- [4]. Corrosion inhibitors in powdered and liquid forms have been incorporated into coatings to enhance their antirust and adhesive characteristics when applied to substrates.…”

Section: Introductionmentioning

confidence: 99%

Behavior of Control and Inhibitive Polyaspartic Coatings Using Alkylammonium and Zinc Phosphate Corrosion Inhibitors in Soil

Elhoud¹,

Everbroeck²

2022

Hung. J. Ind. Chem.

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This study is part of an anti-corrosion coating development project at CHEMSYSTEMS. The corrosion performance was assessed through erosion, immersion and soil corrosion experiments. The erosion results have previously been published. This article discusses the impact of soil on control polyaspartic coatings used to protect concrete and the modified polyaspartic coating intended to protect underground steel substrates. The modified polyaspartic coating was boosted with a micaceous iron oxide barrier, a liquid alkylammonium corrosion inhibitor, a powdered zinc phosphate corrosion inhibitor and a novel hardener. The surface finish of the steel samples was of a milled and blasted nature (SA 2.5). The coating was applied directly to the metal without the application of a primer or second layer of coating. The average thickness of the coating was 220±10 µm as a direct-to-metal protection system. The experiments were conducted in soil at room temperature (RT) and 35°C over 30 days. The experimental results of the control polyaspartic coating loaded on steel substrates exhibited severe blistering. The polyaspartic coating dispersed with a liquid alkylammonium inhibitor also exhibited blistering, whereas the modified polyaspartic coating with a zinc phosphate corrosion inhibitor showed an adequate degree of resistance to the impact of soil under the evaluated conditions. The results confirmed that the presence of a zinc phosphate corrosion inhibitor in combination with a micaceous iron oxide barrier improved the resistance of the coating to the evaluated soils in which it was positioned and at the investigated temperatures.

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“…Due to its economic price, speed of operation and ability to provide excellent corrosion resistance, wear resistance, adhesion, and lubricative properties, it plays a significant role in the automobile, processing, and appliance industries (Jegannathan et al, 2006). Metal coatings also provide good benefits against early rusting but decrease the grade of the steel in practical application (Jiang and Cheng, 2019). An epoxy coating can protect the metal substrate by releasing inhibiting chemicals from the pigment to form a strong passive or barrier layer that inhibits the corrosive medium contact with the metal substrate (Yongsheng et.…”

Section: Introductionmentioning

confidence: 99%

Influence of phosphate layer on adhesion properties between a steel surface and an organic coating

Samardžija

Alar²,

Aljinović

et al. 2022

MGPB

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In this paper, tests of some physico-chemical properties of protective epoxy coating on non-alloy structural steel grade type S235JRG2 have been carried out. This is a significant construction material whose use is remarkably important for many steel products such as H beam, I beam, transmission towers, steel pipe etc. Coatings represent one of the ways to protect metal from corrosion. The properties of coating thickness, hardness, gloss, and adhesion were investigated. The same properties were tested by exposing the sample non-alloy steel plates to corrosive conditions of the salt and humid chamber and seawater. Part of the samples prior to application of the coating were immersed to phosphate solution to further investigate the effects of phosphatization on the properties of the coating. After exposure of the plates to the humidity chamber conditions, no traces of corrosion products, cracking or peeling of the coating were found on the surfaces. The plates tested in the sea water and salt chamber showed a minor damage on protective coating. The traitability properties were tested by the Pull off Adhesion test. Force pull adhesion off test shows less value for unphosphated samples than for phosphated ones.

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Anti-corrosion zinc phosphate coating on building steel via a facile one-step brushing method

Cited by 21 publications

References 16 publications

Zinc-Doping Induces Evolution of Biocompatible Strontium–Calcium-Phosphate Conversion Coating on Titanium to Improve Antibacterial Property

Zinc-Doping Induces Evolution of Biocompatible Strontium–Calcium-Phosphate Conversion Coating on Titanium to Improve Antibacterial Property

Behavior of Control and Inhibitive Polyaspartic Coatings Using Alkylammonium and Zinc Phosphate Corrosion Inhibitors in Soil

Influence of phosphate layer on adhesion properties between a steel surface and an organic coating

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