Protective polymeric films for industrial substrates: A critical review on past and recent applications with conducting polymers and polymer composites/nanocomposites

Umoren, Savıour A.; Solomon, Moses M.

doi:10.1016/j.pmatsci.2019.04.002

Cited by 229 publications

(73 citation statements)

References 853 publications

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“…This unique interaction takes place because of the so-called surface plasmon resonance effect [41]. Generally, AgNPs absorb light and give signal in the visible region at 380-450 nm [42]. The peak position is, however, influenced by the particle size, shape, and the local refractive index [41].…”

Section: Uv-vis Studiesmentioning

confidence: 99%

Preparation of Silver/Chitosan Nanofluids Using Selected Plant Extracts: Characterization and Antimicrobial Studies against Gram-Positive and Gram-Negative Bacteria

et al. 2020

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Chitosan/silver nanofluids were prepared using Phoenix dactylifera (DPLE) or Rumex vesicarius (HEL) extracts as the reducing agent, characterized using Fourier-transform infrared spectroscopy (FTIR), ultraviolet–visible (UV-vis), X-ray diffraction (XRD), and transmission electron microscope (TEM). The antimicrobial effect of the nanofluids against Gram positive, Bacillus licheniformis, Staphylococcus haemolyticus, Bacillus cereus, and Micrococcus luteus, and Gram-negative Pseudomonas aeruginosa, Pseudomonas citronellolis, and Escherichia coli bacteria has been studied. The nanoparticles were polydispersed in the chitosan matrix and are highly stable. The zeta potential of the silver nanoparticles in DPLE- and HEL-mediated composites is +46 mV and +56 mV, respectively. The FTIR results reveal that the free carboxylate groups in the plant biomaterial took part in stabilization process. HEL is a stronger reducing agent than DPLE and nanoparticles generated with HEL are smaller (8.0–36 nm) than those produced with DPLE (10–43 nm). DPLE- and HEL-mediated composites effectively inhibit the growth of the studied bacteria but HEL-mediated composite exhibited higher effect. The higher antimicrobial activity of HEL-mediated composite is linked to the smaller nanoparticles. The foregoing results indicate that HEL extract can be used in the green production of potential antimicrobial chitosan/silver nanofluids for biomedical and packaging applications.

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Section: Uv-vis Studiesmentioning

confidence: 99%

Preparation of Silver/Chitosan Nanofluids Using Selected Plant Extracts: Characterization and Antimicrobial Studies against Gram-Positive and Gram-Negative Bacteria

et al. 2020

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“… 13 , 21 , 39 Most importantly, the metal surface charge and the state of an organic molecule in a corrosive environment have a profound influence on the adsorption process. 51 Research studies 13 , 21 , 22 , 42 have shown that the surface of carbon steel in HCl solution carries a net positive charge and chloride ions preferentially adsorbed on the surface. The specific adsorption creates excess electrons on the surface, and this allows cationic species to be adsorbed on the surface.…”

Section: Results and Discussionmentioning

confidence: 99%

“…3 , 33 Corrosion inhibition technology is an effective and low-cost corrosion mitigation approach. 4 , 51 Because of environmental litigations, efforts have been intensified to develop eco-friendly corrosion inhibitors. 44 , 52 , 53 Herein, a novel dicationic monomer (NDTHDC) and its polymer (poly-NDTHDC) have been studied as corrosion inhibitors for API X60 steel in 15 wt % HCl solution at a temperature ranging from 25 to 90 °C.…”

Section: Discussionmentioning

confidence: 99%

Comparative Studies of the Corrosion Inhibition Efficacy of a Dicationic Monomer and Its Polymer against API X60 Steel Corrosion in Simulated Acidizing Fluid under Static and Hydrodynamic Conditions

et al. 2020

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N 1 , N 1 -diallyl- N 6 , N 6 , N 6 -tripropylhexane-1,6-diaminium chloride (NDTHDC) and its polymer poly( N 1 , N 1 -diallyl- N 6 , N 6 , N 6 -tripropylhexane-1,6-diaminium chloride) (poly-NDTHDC) were synthesized and tested against API X60 carbon steel corrosion in 15 wt % HCl solution. Weight loss, electrochemical, and surface analysis techniques were used. Results show that poly-NDTHDC is better than NDTHDC. Moreover, 1000 mg/L NDTHDC protected the studied surface by 79.1% at 25 °C, while 100 mg/L poly-NDTHDC afforded 86.1% protection. Inhibition efficiency increases with temperature (up to 60 °C) but depreciates thereafter. NDTHDC and poly-NDTHDC perform better under the hydrodynamic condition than the static condition. TGA and FTIR results reveal that poly-NDTHDC is chemically and thermally stable.

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“…Polymer nanocomposites have found increasing attention in various engineering applications [58][59][60]. The essential characteristic of this procedure is that CPs make it possible to maintain the substrate surface potential into a passive state wherein a protective oxide film is generated on the surface of metal substrates [43,61]. As a result, CPs-based coatings are pinhole and defect resistant in such a way as that of the hexavalent chromium coatings.…”

Section: Composite Conducting Polymers (Ccps)mentioning

confidence: 99%

Application of composite conducting polymers for improving the corrosion behavior of various substrates: A Review

Bazli

Yusuf

Farahani

et al. 2020

jcc

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Protective polymeric films for industrial substrates: A critical review on past and recent applications with conducting polymers and polymer composites/nanocomposites

Cited by 229 publications

References 853 publications

Preparation of Silver/Chitosan Nanofluids Using Selected Plant Extracts: Characterization and Antimicrobial Studies against Gram-Positive and Gram-Negative Bacteria

Preparation of Silver/Chitosan Nanofluids Using Selected Plant Extracts: Characterization and Antimicrobial Studies against Gram-Positive and Gram-Negative Bacteria

Comparative Studies of the Corrosion Inhibition Efficacy of a Dicationic Monomer and Its Polymer against API X60 Steel Corrosion in Simulated Acidizing Fluid under Static and Hydrodynamic Conditions

Application of composite conducting polymers for improving the corrosion behavior of various substrates: A Review

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