Effects of surface treatment of TiO2 nanoparticles on the adhesion and anticorrosion properties of the epoxy coating on mild steel using electrochemical technique

Pour, Zahra Sekhavat; Ghaemy, Mousa; Bordbar, Sajjad; Karimi-Maleh, Hassan

doi:10.1016/j.porgcoat.2018.02.019

Cited by 54 publications

(8 citation statements)

References 34 publications

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“…When using the traditional organic coatings, in order to achieve a better anti-corrosion effect, the strict surface rust removal treatment is necessary . However, the pretreatment effect is often restricted by factors such as labor intensity, low efficiency, equipment location, and geometric shape, and it is often difficult to achieve the requirements of the standard Sa 2.5, resulting in the unguaranteed coating quality. , In addition, the traditional organic coatings often need to contain composite anticorrosive pigments such as the lead oxide and chromate, which have good anticorrosive properties .…”

Section: Introductionmentioning

confidence: 99%

Effect on the Surface Anticorrosion and Corrosion Protection Mechanism of Integrated Rust Conversion Coating for Enhanced Corrosion Protection

Lei

Luan

et al. 2022

ACS Omega

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Here, a series of integrated rust conversion agents/ coatings were synthesized by esterification reaction of 3,4,5trihydroxybenzoic acid (GA) and triethanolamine (TE). The structural features, rust conversion ability, and corrosion resistance of the synthesized rust conversion agents/coatings were analyzed using the Fourier transform infrared tests, scanning electron microscopy tests, X-ray diffraction tests, and electrochemical measurements. It was found that when the mass ratio of TE and GA was 2:1, the synthesized rust conversion agent/coating has best rust conversion ability and anti-corrosion performance (i.e., corrosion current density 7.480 × 10 −7 A/cm 2 ). In addition, different from the traditional coatings, the integrated rust conversion coating developed in this study combines the primer and topcoat of traditional coatings into one, which can significantly increase the on-site construction efficiency. Furthermore, a new rust conversion mechanism for the optimized rust conversion agent/coating was proposed. The phenolic hydroxyl functional groups in the rust conversion agent can well chelate with Fe 2+ /Fe 3+ in the original rust layer and then form macromolecular compounds and dense chelating films inside the coating, which tightly wraps rust and also prevents the penetration and diffusion of corrosive medium, making them lose the opportunity to interact with each other.

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Section: Introductionmentioning

confidence: 99%

Effect on the Surface Anticorrosion and Corrosion Protection Mechanism of Integrated Rust Conversion Coating for Enhanced Corrosion Protection

Lei

Luan

et al. 2022

ACS Omega

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“…Particular focus has been placed on prolonging the service life of epoxy coatings by combining it with inorganic nanofillers, such as titanium oxide (Sekhavat Pour et al , 2018), graphene (Luo et al , 2018), silica (Li et al , 2018) and nanotube materials (Kausar, 2018). These nanoparticles can increase the barrier properties of the epoxy coating by filling the cavities, crack deflection and crack bridging in the coating.…”

Section: Introductionmentioning

confidence: 99%

Effect of halloysite nanotubes on corrosion protection properties of the self-curing epoxy resin coatings

Tang¹,

Ren²,

Wang

et al. 2021

PRT

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Purpose The purpose of this paper is to study the effect of the nano tube fillers on the corrosion protection properties of the self-curing epoxy (SEP) coatings. Design/methodology/approach The self-curing epoxy (SEP) resin was synthesized via a reaction between diisopropoxy-bis ethylacetoacetato titanate and the epoxy resin. Halloysite nanotubes (HNTs) was surface modified by grafting (3-glycidoxypropyl) trimethoxysilane to obtain modified HNTs (mHNTs). The HNTs and mHNTs are used as nano tube fillers for the SEP coating. The thermal stability of the coatings was assessed via thermo-gravimetric analysis. The field-emission scanning electron microscopy (SEM) was conducted to analyze the surfaces and cross sections of the coatings. The anticorrosive efficiencies of the coatings were investigated by electrochemical measurements and a neutral salt spray test. Findings The results demonstrated that the additions of HNTs and mHNTs have little effect on the thermal degradation temperature of the SEP coating. However, the addition of the nanotubes reduced the corrosion resistance of the SEP coating. Originality/value The SEP coating itself showed excellent corrosion resistance without any reinforcement particles and is hence promising for application in the heavy-duty anticorrosion field of heat exchangers.

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“…Recently, inspiration from natural biomimetic materials has opened a rapidly growing field in designing novel structures and adjusting material interfaces. , Bioinspired adhesive materials based on polyphenolic and catecholic/catecholamine groups were conceived as a powerful tool for further functionalization of substrates. Moreover, several studies highlighted their superiority for providing adhesive surfaces with high affinity to biomolecules and cells .…”

Section: Introductionmentioning

confidence: 99%

Mechanobiology of Dental Pulp Stem Cells at the Interface of Aqueous-Based Fabricated ZIF8 Thin Film

Ejeian

Haghani

Nasr-Esfahani

et al. 2021

ACS Appl. Bio Mater.

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The limited knowledge on how biological systems sense and respond to the mechanical properties of metal–organic framework (MOF) thin films is a critical restriction factor for their extensive usage. To bridge this gap, we performed an in vitro study for defining and linking surface characteristics at the interface of the zeolitic imidazolate framework-8 (ZIF8) thin layer to stem cell behavior. First, the physio-mechanical properties of the ZIF8 layer grown on polydopamine (PDA) and tannic acid (TA) layers have been studied. The response of dental pulp stem cells (DPSCs) to different surface states was examined. The results showed that the uniform crystalline microstructure of the ZIF8 on PDA and TA effectively led to the 61- and 388-fold increased surface roughness, 3- and 2.5-fold moderated elastic modulus, almost 3-fold elevated surface free energy, and highly charged surfaces (ζ = −60 mV for TA/ZIF8), respectively. Beyond the inherent bioactivity of the ZIF8 layer, these substrate cues promoted advanced cell adhesion (∼two times) and high proliferation rate. Furthermore, we found a substantial increment in the differentiation efficiency of DPSCs on the ZIF8 layer, in a way that the expression of functional adipocyte (PPARG) and osteoblast (SPP1) markers was, respectively, elevated around 30 000- and 10 000-fold on the TA/ZIF8-coated silicon wafer (SW). Our findings support the impact of fabrication strategy on the biointerface properties of the ZIF8 layer and bring SW/TA/ZIF8 as a robust platform for managing stem cells for biomedical applications.

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Effects of surface treatment of TiO2 nanoparticles on the adhesion and anticorrosion properties of the epoxy coating on mild steel using electrochemical technique

Cited by 54 publications

References 34 publications

Effect on the Surface Anticorrosion and Corrosion Protection Mechanism of Integrated Rust Conversion Coating for Enhanced Corrosion Protection

Effect on the Surface Anticorrosion and Corrosion Protection Mechanism of Integrated Rust Conversion Coating for Enhanced Corrosion Protection

Effect of halloysite nanotubes on corrosion protection properties of the self-curing epoxy resin coatings

Mechanobiology of Dental Pulp Stem Cells at the Interface of Aqueous-Based Fabricated ZIF8 Thin Film

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