An Environmentally Friendly Yellow Composite Pigment: Leaching Stability and Corrosion Inhibition Properties

2021 ◽  
Vol 6 (16) ◽  
pp. 3833-3840
Author(s):  
Azimeh Zamani ◽  
Sara Eavani ◽  
Ezzat Rafiee
Keyword(s):  
Corrosion Inhibition ◽  
Environmentally Friendly

Theoretical evaluation of the corrosion inhibition performance of aliphatic dipeptides

2021 ◽  
Author(s):  
Anton Kasprzhitskii ◽  
Georgy Lazorenko ◽  
Tatyana Nazdracheva ◽  
Aleksandr Kukharskii ◽  
Victor Yavna ◽  
...  
Keyword(s):  
Service Life ◽  
Corrosion Inhibition ◽  
Corrosion Inhibitors ◽  
Environmentally Friendly ◽  
Metals And Alloys ◽  
Theoretical Evaluation ◽  
Operational Capabilities ◽  
Inhibition Performance

Corrosion significantly limits the operational capabilities of metals and alloys reducing their service life. Finding environmentally friendly and economically justified alternatives to commercially used corrosion inhibitors is an important problem....

scholarly journals Inhibition and compressive-strength performance of Na2Cr2O7 and C10H14N2Na2O8·2H2O in steel-reinforced concrete in corrosive environments

2015 ◽  
Vol 42 (6) ◽  
pp. 408-416 ◽  
Author(s):  
Joshua Olusegun Okeniyi ◽  
Isaac Oluwaseun Oladele ◽  
Oluwafemi Michael Omoniyi ◽  
Cleophas Akintoye Loto ◽  
Abimbola Patricia Idowu Popoola
Keyword(s):  
Compressive Strength ◽  
Reinforced Concrete ◽  
Corrosion Inhibition ◽  
Environmentally Friendly ◽  
Disodium Salt ◽  
Partial Replacement ◽  
Sodium Dichromate ◽  
Steel Reinforced Concrete ◽  
Corrosive Environments ◽  
Strength Improvement

This paper studied corrosion-inhibition and compressive-strength performances of Na2Cr2O7 (sodium dichromate) and C10H14N2Na2O8·2H2O (ethylenediaminetetraacetic disodium salt: EDTA-Na2) admixtures in steel-reinforced concrete immersed in NaCl and in H2SO4 corrosive environments. Electrochemical methods were used for studying corrosion responses of different concentrations of the individual admixtures and their synergies, in the model that partially replace the toxic Na2Cr2O7 by the environmentally-friendly C10H14N2Na2O8·2H2O, in steel-reinforced concretes. After the electrochemical experiment, the steel-reinforced concrete samples were subjected to the compressive-strength testing and analyses of ASTM C39/C39M-03 and ASTM C267-01(2012). Results showed that the use of environmentally-friendly EDTA-Na2 for partially replacing toxic Na2Cr2O7 chemical exhibited better corrosion-inhibition and compressive-strength improvement in the NaCl-immersed concretes, than in the H2SO4-immersed concretes. The 2 g Na2Cr2O7 + 6 g EDTA-Na2 admixture (representing partial replacement model of 6 g Na2Cr2O7 by 6 g EDTA-Na2) exhibited optimal corrosion inhibition efficiency (η = 99.0%) and very good compressive-strength improvement advantage in the NaCl-immersed concretes. In contrast, comparatively low compressive-strength reduction trade-off with the good inhibition effectiveness of η = 79.9% support use of 6 g EDTA-Na2 admixture only (i.e., without Na2Cr2O7 addition) for inhibiting reinforcing-steel corrosion in the H2SO4-immersed concretes.

The Preparation and Research on Multifunctional Environmentally Friendly Corrosion Inhibitor of Chemical Cleaning

2014 ◽  
Vol 664 ◽  
pp. 70-74
Author(s):  
Li Hui Zhang ◽  
Zhen Fa Liu ◽  
Ru Hui Guo
Keyword(s):  
Corrosion Inhibitor ◽  
Corrosion Inhibition ◽  
Environmentally Friendly ◽  
Experimental Results ◽  
Chemical Cleaning ◽  
Iron And Steel ◽  
Corrosion Tests ◽  
Inhibition Performance

A kind of multifunctional environmentally friendly corrosion inhibitor (DHS) was prepared in order to protect many kinds materials from corrosion in iron and steel enterprise. The corrosion inhibition performance was studied by rotary hanging-piece corrosion tests . And biodegradability was investigated by biodegradation experiments . The experimental results showed that DHS has good performance both on corrosion inhibition and biologic degradable. It was suitable for the serious of materials and presense in iron and steel enterprise when the concentration of DHS was 0.4%. And the efficiency of biodegradability was 52.45% in 28d .

Active corrosion inhibition of mild steel by environmentally-friendly Ce-doped organic–inorganic sol–gel coatings

RSC Advances ◽  
2016 ◽  
Vol 6 (46) ◽  
pp. 39577-39586 ◽  
Author(s):  
J. Mosa ◽  
N. C. Rosero-Navarro ◽  
M. Aparicio
Keyword(s):  
Mild Steel ◽  
Corrosion Inhibition ◽  
Sol Gel ◽  
Environmentally Friendly ◽  
Self Healing ◽  
Barrier Effect ◽  
Active Corrosion

A bi-layer siloxane-methacrylate coating (26 μm) doped with cerium on mild steel combining a barrier effect with self-healing in 3.5 wt NaCl.

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