Effect of expired paracetamol–Zn+2 system and its synergistic effect towards iron dissolution inhibition and green inhibition performance

2020 ◽  
pp. 1-18 ◽  
Author(s):  
Reda S. Abdel Hameed ◽  
Enas H. Aljuhani ◽  
Rasha Felaly ◽  
Alaa M. Munshi
Keyword(s):  
Synergistic Effect ◽  
Iron Dissolution ◽  
Inhibition Performance

scholarly journals Studies on the Antibacterial Influence of Two Ionic Liquids and their Corrosion Inhibition Performance

2020 ◽  
Vol 10 (4) ◽  
pp. 1444 ◽  
Author(s):  
Mohamed F. Shehata ◽  
Ashraf M. El-Shamy ◽  
Khaled M. Zohdy ◽  
El-Sayed M. Sherif ◽  
Sherif Zein El Abedin
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Synergistic Effect ◽  
Corrosion Inhibition ◽  
Hydroxyl Group ◽  
Side Chain ◽  
Imidazolium Cation ◽  
Corrosion Effect ◽  
Inhibition Performance

In this paper the anti-bacterial and the anti-corrosion effect of two different ionic liquids, namely 1-(2-hydroxyethyl)-3-methylimidazolinium chloride ([OH-EMIm]Cl) and 1-ethyl-3-methyleimidazolinium chloride ([EMIm]Cl) was demonstrated. The results revealed that the corrosion inhibition influence of the ionic liquid [OH-EMIm]Cl is higher than that of the ionic liquid [EMIm]Cl. Furthermore, the ionic liquid [OH-EMIm]Cl showed better biocidal influence compared with the ionic liquid [EMIm]Cl. This indicates the synergistic effect due to the incorporation of the hydroxyl group into the side chain of the imidazolium cation leading to enhanced antibacterial and anticorrosion effect.

scholarly journals Experimental and modeling studies on enhancing the thermodynamic hydrate inhibition performance of monoethylene glycol via synergistic green material

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Arul Bharathi ◽  
Omar Nashed ◽  
Bhajan Lal ◽  
Khor Siak Foo
Keyword(s):  
Carbon Dioxide ◽  
Synergistic Effect ◽  
Phase Boundary ◽  
Maximum Error ◽  
Modeling Studies ◽  
Hydrate Phase ◽  
Carbon Dioxide Hydrate ◽  
Equilibrium Data ◽  
Dissociation Temperature ◽  
Inhibition Performance

AbstractThis paper presents an experimental and modeling studies on the thermodynamic inhibition effects of the mixture of monoethlyene glycol (MEG) and glycine (Gly) on the carbon dioxide hydrate phase boundary condition. The monoethlyene glycol and glycine (1:1) mixture inhibition effects were investigated at concentrations of 5, 10, and 15 wt.% and pressure ranges from 2.0–4.0 MPa. The effects of the proposed mixture on the carbon dioxide hydrate phase boundary were evaluated by measuring the dissociation temperature of carbon dioxide hydrate using a T-cycle method. The synergistic effect was evaluated based on comparison with pure MEG and Gly data. The results show that 15 wt.% of MEG and Gly mixture displays the highest inhibition effect compared to the 5 and 10 wt.% mixtures, respectively. However, the synergistic effect is higher at 10 wt.%. Dickens' model was also adopted to predict the phase equilibrium data of CO2 hydrates in the presence of the mixture. The modified model successfully predicted the data within a maximum error of ± 0.52 K.

scholarly journals Synergistic effect of hybrid graphene oxide-aluminum dihydric tripolyphosphate in epoxy-based anticorrosive coatings

2020 ◽  
Author(s):  
Weiqiang Song ◽  
Xiaohua Liu ◽  
Qingsong Zhu ◽  
Yuxiang Zhang
Keyword(s):  
Graphene Oxide ◽  
Synergistic Effect ◽  
Electrochemical Impedance ◽  
Chemical Interaction ◽  
Synergetic Effect ◽  
Corrosion Performance ◽  
Chemical Coupling ◽  
Ft Ir ◽  
Inhibition Performance ◽  
Coupling Treatment

ADTP-GO hybrid was prepared from multi-layered aluminum dihydric tripolyphosphate (ADTP) and flake-shaped graphene oxide (GO) by a coupling method using (3-aminopropyl) triethoxysilane (ASi) as the coupling agent. Characterization analyses of the hybrid were performed by FT-IR, XRD and SEM. The effect of incorporating 2wt% ADTP-GO hybrid on corrosion inhibition performance of epoxy coating was evaluated in 3.5wt.% NaCl aqueous solution by using Tafel and electrochemical impedance spectroscopy (EIS) analysis. For comparison, the effects of ADTP and GO, alone and in combination without coupling treatment were also evaluated. FT-IR and XRD showed the presence of the chemical interaction between ADTP and GO in ADTP-GO hybrid. SEM indicated that GO was spread on the surface of ADTP layers in the hybrid. Tafel and EIS data indicated that the hybrid displayed an anti-corrosion performance superior to ADTP/GO blend without coupling treatment. The superiority was attributed to the stronger synergetic effect of ADTP and GO in ADTP-GO hybrid than in ADTP/GO blend. Additionally, epoxy/ADTP/GO coating was better than pure epoxy, epoxy/ADTP, and epoxy/GO coatings in the anti-corrosion performance on mild steel. It seems that the combination of ADTP and GO produced synergistic effect, and the synergistic effect was more obvious after chemical coupling.

Synergistic effect of 1-(2,5-dioxoimidazolidin-4-yl)urea and Tween-80 towards the corrosion mitigation of mild steel in HCl

2019 ◽  
Vol 43 (35) ◽  
pp. 13899-13910 ◽  
Author(s):  
Weiwei Zhang ◽  
Hui-Jing Li ◽  
Chen Wang ◽  
Li-Juan Wang ◽  
Gen Li ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Mild Steel ◽  
Tween 80 ◽  
Inhibition Effect ◽  
Synergistic Inhibition ◽  
Inhibition Performance ◽  
Synergistic Inhibition Effect ◽  
First Time

The inhibition performance and synergistic inhibition effect of DMU with Tween-80 on the corrosion of mild steel in 1 M HCl was studied for the first time.

Characteristics Of The Structure Formation Of Gypsum Binder Modified With Zinc Hydrosilicates

2020 ◽  
pp. 40-46
Keyword(s):  
Synergistic Effect ◽  
Physicochemical Properties ◽  
Structure Formation ◽  
Silicic Acid ◽  
Chemical Properties ◽  
Crystal Formation ◽  
Ability To Act ◽  
Chemical Factors ◽  
Sorption Characteristics

The authors' methodic for assessing the role of chemical and physic-chemical factors during the structure formation of gypsum stone is presented in the article. The methodic is also makes it possible to reveal the synergistic effect and to determine the ranges of variation of controls factors that ensure maximum values of such effect. The effect of a micro-sized modifier based on zinc hydro-silicates on the structure formation of building gypsum is analyzed and corresponding dependencies are found. It is shown that effects of influence of modifier on the properties of gypsum compositions are determined by chemical properties of modifier. Among the mentioned properties are sorption characteristics (which depend on the amount of silicic acid and its state) and physicochemical properties - the ability to act as a substrate during crystal formation. The proposed method can also be extended to other binding substances and materials. This article contributes to the understanding of the processes that occur during the structure formation of composites, which will make it possible to control the structure formation in the future, obtaining materials with a given set of properties.

The Synergistic Effect of Suplatast Tosilate and Tacrolimus Hydrate Ointment on Adult Atopic Dermatitis with Intractable Face Erythema

2005 ◽  
Vol 67 (3) ◽  
pp. 247-251 ◽  
Author(s):  
Motoi TAKENAKA ◽  
Sang Jae BAE ◽  
Shinichi SATO ◽  
Ichiro KATAYAMA
Keyword(s):  
Atopic Dermatitis ◽  
Synergistic Effect
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