Active films made of chitosan and fish gelatin blends containing 5% (w/wt polymers) tyrosol, ferulic acid or caffeic were prepared by the casting method. The kinetic release was assessed in water 1% (w/v) NaCl solution, at three temperatures (4, 25 32°C). Partition (Kf/S) effective diffusivity (D) modelled which allowed to characterize mechanism. Tyrosol has a faster higher concentration than o...

Ca-Al-Layered Double Hydroxide (Ca-Al-LDH) coating was explored on 2024-T3 aluminium alloy by in situ growth methodology following a 1 h treatment at atmospheric pressure. Mn-based species were successfully incorporated into the Ca-Al-LDH structure low-temperature post-treatment (Ca-Al-LDH-Mn). Both LDH coatings disclosed flaky-like morphology and low thickness (~0.6 µm). Ca-Al-LDH-Mn showed op...

Spherical zinc is well known as an effective pigment for the corrosion protection of carbon steel. However, a high proportion spherical Zn in coating leads to difficulties fabricating solution and increased cost. In this work, influence flake ZnAl alloy silicate coatings on properties steel substrates was investigated. The electrochemical behaviour containing different content immersed NaCl (3....

Herein, we report the development of a self-sensing and active corrosion protection coating which incorporates pH-sensitive multilayer chitosan/alginate-covered CaCO3 microcontainers containing 1,10-phenanthrolin-5-amine (APhen). The can respond to pH variation release APhen serves not only as indicator but also an inhibitor. An epoxy doped with 5 wt% exhibited improved performance was capable ...

The present study was carried out to evaluate the protective role of kombucha mushroom (KM) tea on cytotoxicity induced by phenol (PHE) in mice. We used weight gain and micronucleus (MN) frequency as indicators of cytotoxicity and supported these parameters with pathological findings. The animals were randomly divided into seven groups: (Group I) only tap water (Group II) 1000 microl kg(-1) b. ...

The corrosion behavior of copper and copper-functionalized boron nitride nanocomposites (Cu-BNNS) was studied in a 3.5 wt.% NaCl solution. Polarization curves cyclic voltammetry experiments were used to differentiate the various stages behavior. Additionally, electrochemical impedance spectroscopy (EIS) understand different steps degradation mechanism. EIS results analyzed using adsorption mode...

This work examined the influence of dual incorporation MoO2 and SiO2 on corrosion behavior pure titanium treated via plasma electrolytic oxidation (PEO). To achieve this purpose, substrate was PEO in an alkaline-molybdate electrolyte without with nanoparticles. The microstructural observation revealed that addition nanoparticles into during helped to seal structural defects coating so a rougher...

Aluminum based metal matrix composites are devoting more interest towards multiple applications due to their good thermal and mechanical properties. At this study, of AlMg5/ZrO2 with gradients ZrO2, were manufactured using stir casting technique. Microstructure, hardness tribological properties the composite investigated. Pin-on-disk technique was used under wet conditions (3.5 wt. % NaCl solut...

Effects of alkanolamine molecules on the corrosion inhibition L80–1Cr steel were studied in a CO2-saturated 1 wt% NaCl solution at well downhole temperatures 20 and 80 °C. The electrochemical results showed lower rates °C, for which more influenced by injection. experimental molecular modelling calculations using DFT revealed that adsorption/desorption played determining role kinetics character...