The performance of a waterborne zinc-rich coating from sodium silicate solution catalyzed by ammonium acetate

Yang, Xiaohu; Zhu, Weiling

doi:10.1134/s2070205117020277

Cited by 6 publications

(2 citation statements)

References 18 publications

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“…The annual economic loss caused by corrosion accounts for more than 3% of China's GDP [1,2]. In the field of oil and gas exploitation and transportation, the phenomenon of corrosion and perforation will occur and cause pipeline rupture when the underground oil and gas transport pipeline is put into operation for one to two years, which will lead to leakage of oil and gas, environmental pollution, and even cause fire, explosion and other accidents, threatening personal safety and causing significant asset losses [3][4][5][6]. Because of the organic solvent of this material system, such as toluene, xylene, etc., it will cause relatively serious pollution to the environment in the construction or applied process, and impose a serious impact on the local ecological environment [7][8][9].…”

Section: Introductionmentioning

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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Section: Introductionmentioning

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 barrier nature of epoxy resin and the antirust nature of iron oxide red are used for corrosion protection. Zinc-rich coatings include organic epoxy zinc-rich and inorganic zinc-rich coatings [1]. In zinc-rich coatings, zinc powder first provides cathodic protection for the substrate through sacrificial current [2].…”

Section: Introductionmentioning

confidence: 99%

Effect of regularly arranged reduced graphene oxide on the anti-corrosion performance of waterborne silicate zinc-rich coatings

Zhao

Zhang

et al. 2022

Corrosion Engineering, Science and Technology

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The effect of a barrier layer composed of reduced graphene oxide (rGO) with edge adsorption of K + (rGOK + ) on anticorrosive performance was investigated. Scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), DC polarisation technique and electrochemical impedance spectroscopy (EIS) were used to investigate the morphology, corrosion product, corrosion mechanism and process. XPS results show that the corrosion products are ZnCl 2 , Zn(OH) 2 , ZnCO 3 and Zn 5 (OH) 8 Cl 2 . SEM, energy-dispersive spectrometer (EDS), polarisation curve and EIS show that the coating with the most rGOK + not only builds a barrier layer but also improves the utilisation of zinc powder, thereby providing better corrosion protection for the substrate despite the 30% reduction in zinc powder usage.

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CeO2 modified graphene nanoplatelets composite powders enhanced the cathodic protection of waterborne zinc-rich epoxy coatings

et al. 2020

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The performance of a waterborne zinc-rich coating from sodium silicate solution catalyzed by ammonium acetate

Cited by 6 publications

References 18 publications

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

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

Effect of regularly arranged reduced graphene oxide on the anti-corrosion performance of waterborne silicate zinc-rich coatings

CeO2 modified graphene nanoplatelets composite powders enhanced the cathodic protection of waterborne zinc-rich epoxy coatings

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