Preparation and anticorrosion property of poly(2,3-dimethylaniline) modified by nano-SiO2

Ma, Li; Chen, Feifei; Li, Zhitao; Gan, Mengyu; Yan, Jun; Wei, Shujuan; Bai, Youqian; Zeng, Jun

doi:10.1016/j.compositesb.2013.10.064

Cited by 29 publications

(9 citation statements)

References 16 publications

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“…This strategy offers an effective solution for enhancing the performance of coatings, since nanoparticles lead to decrease in porosity, increase in cross‐linking density, help to integrity and flexibility, and improve the mechanical and thermal properties of coatings . In this regard, different nanoparticles such as SiO 2 , Al 2 O 3 , Fe 2 O 3 , ZnO, TiO 2 , ZrO 2 , and clay have been incorporated into polymer coating to enhance their protection performance. Though, nowadays, conventional micron‐sized inorganic fillers are widely used, emerging nano‐sized fillers, owing to smaller particle size, can act as more efficient pore‐filler, and consequently better barrier against corrosive species…”

Section: Introductionmentioning

confidence: 99%

Corrosion protection performance of nanoparticle incorporated epoxy paint assessed by linear polarization and electrochemical impedance spectroscopy

Torknezhad

Khosravi

Assefi

2017

Materials & Corrosion

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Epoxy paint was homogeneously incorporated with Al2O3(α), Fe2O3(α), SiO2, and ZnO nanoparticles at 1, 2, and 3 wt% with respect to total weight of hardener and undried epoxy, and coated on carbon steel coupons. Corrosion protection performance of the samples was evaluated by linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) in 3 wt% NaCl solution. Analysis of LSV data and thorough analysis of EIS data showed the beneficial effect of all types of nanoparticles at 1 wt%. For 2 and 3 wt% samples, performance was different, depending on the nanoparticle type. However, the sample containing 3 wt% Al2O3(α) showed the best performance among all the tested samples. The results were correlated to the ability of the nanoparticles to block corroding coatings by decreasing the porosity of the dried epoxy paint.

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Section: Introductionmentioning

confidence: 99%

Corrosion protection performance of nanoparticle incorporated epoxy paint assessed by linear polarization and electrochemical impedance spectroscopy

Torknezhad

Khosravi

Assefi

2017

Materials & Corrosion

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“…In other words, most of the water moisture in the CNCs sample was contained to the coating without further penetration through the coating layer. This is similar to other nanofillers, such as nano silica, which can retard the diffusion of water moisture and other corrosive ions to the coating/mild steel interface through zigzagging the pathway [ 53 , 54 ]. Nevertheless, even though the barrier effect of the coating was enhanced, some of the water moisture and other corrosive ions could still pass through the coating and be retained at the interface of coating and mild steel, which could still induce corrosion.…”

Section: Resultsmentioning

confidence: 76%

Synergistic Effects of 1-Octyl-3-Methylimidazolium Hexafluorophosphate and Cellulose Nanocrystals on Improving Polyacrylate Waterborne Anti-Corrosion Coatings

Wang

2023

Polymers

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In this study, three copolymers of poly(methyl methacrylate) and poly(butyl acrylate) (PMMA-co-PBA) latex containing 1-octyl-3 methylimidazolium hexafluorophosphate (C8mimPF6), cellulose nanocrystals (CNCs), and C8mimPF6-CNCs were successfully synthesized through mini emulsion polymerization. These novel composites were each coated on mild steel panels and tested for their anti-corrosion performance by immersion of the coated samples in 3.5 wt% sodium chloride (NaCl) solution over a certain period. The synergistic anti-corrosion effects of the C8mimPF6-CNCs sample led to the highest coating resistance, charge transfer resistance, and corrosion inhibition efficiency and the lowest diffusion coefficient and corrosion rate. The proposed synergistic mechanism revealed that CNCs enhanced the barrier effect of the coating while C8mimPF6 inhibited corrosion when released.

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“…In addition, the peaks at 1,078 and 1,604 cm −1 were attributed to the COC structure in the EDOT unit and the CC stretching vibrations of the benzene ring, respectively . The peaks at 1,120 and 810 cm −1 were attributed to in‐plane and out‐of‐plane aromatic CH bending for the 1,4‐disubstituted aromatic ring . For the PEDOT‐MBQ powders, the band at 1,569 cm −1 resulted from the CC stretching of a quinoid structure , which indicated the existence of a conjugated main chain.…”

Section: Resultsmentioning

confidence: 98%

Effects of side groups on the thermoelectric properties of composites based on conjugated poly(3,4‐ethylenedioxythiophene methine)s with low bandgaps

Lai

Xiang

et al. 2016

Polymer Composites

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A series of conjugated poly(3,4-ethylenedioxythiophene methine)s (PEDOT-Ms) with different side groups (e.g., electron-withdrawing, electron-donating, and electronneutralizing groups) containing 3,4-ethylenedioxythiophene (EDOT) units was synthesized and characterized, showing low optical bandgaps. Then, the PEDOT-M polymers were blended with graphite (G) to prepare polymer-inorganic composites to compare their thermoelectric (TE) properties. The optical absorption study indicated direct bandgaps ranging from 1.72 to 1.79 eV. The results showed that PEDOT-M polymers with strongly electron-withdrawing and electron-donating groups exhibited lower bandgap values and higher Seebeck coefficients, and their composites exhibited better TE properties than PEDOT-M with an electronneutralizing side group. The highest figure of merit (ZT) value for the (poly[{3,4-ethylenedioxythiophene-2,5-diyl} {p-nitrobenzylidene}{3,4-ethylenedioxythiophenequinodimethane-2,5-diyl}])(PEDOT-NBQ)/80 wt% G composite was 6.75 3 10 23 at 1208C, which was higher than the ZT value of the other PEDOT-M/G composites. These results reveal a novel approach using the structural modifications of polymers to improve the understanding of TE performance and confirm that the conjugated PEDOT-M samples studied are low-bandgap conducting polymers that can be used as TE materials. POLYM. COMPOS.,

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Preparation and anticorrosion property of poly(2,3-dimethylaniline) modified by nano-SiO2

Cited by 29 publications

References 16 publications

Corrosion protection performance of nanoparticle incorporated epoxy paint assessed by linear polarization and electrochemical impedance spectroscopy

Corrosion protection performance of nanoparticle incorporated epoxy paint assessed by linear polarization and electrochemical impedance spectroscopy

Synergistic Effects of 1-Octyl-3-Methylimidazolium Hexafluorophosphate and Cellulose Nanocrystals on Improving Polyacrylate Waterborne Anti-Corrosion Coatings

Effects of side groups on the thermoelectric properties of composites based on conjugated poly(3,4‐ethylenedioxythiophene methine)s with low bandgaps

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