نتایج جستجو برای: natural corrosion inhibitor

تعداد نتایج: 716657  

2011
E. Javierre S. J. García C. Vuik S. van der Zwaag

Coatings are a cheap and efficient solution to protect underlying metallic substrates against electrochemical corrosion. High performance coatings do not only provide this protection of the substrate in the undamaged state but also when they are scratched. This enhanced protection can be achieved in many different ways (ranging from primers based on expansive phases which seal the crack upon sc...

Journal: :Jurnal Pijar Matematika dan Ilmu Pengetahuan Alam 2023

Corrosion is a chemical reaction between metal and substances in free air influenced by typographical conditions, climate, humidity levels around the object. If left unchecked, it can cause damage to infrastructure, material losses, harm terms of safety security. Therefore, way inhibit corrosion needed creating an environmentally friendly inhibitor from natural materials. One them utilizing Sam...

2015
Sanjay K. Sharma Anjali Peter Ime Bassey Obot

Azadirachta indica (AZI, commonly recognized as “Neem”) is noteworthy both for its chemical and for its biological actions. It is one of the most fruitful sources of secondary metabolites in nature. To date, more than 300 natural products have been isolated from different sections of the tree, with new compounds added to the list every year. As a contribution to the current interest on green co...

2016
X. - J. Kong W. - Y. Fan M. Liang C. - D. Qian H. Luo Y. Yao

A novel Mannich-modified imidazoline (MMI) as cationic emulsifier was synthesised for corrosion harm reduction, through three steps — acylation, cyclization, and Mannich reaction. The surface activity was characterized by determination of surface tensions and critical micelle concentration (CMC). The corrosion inhibition performance of five types of steels in the simulated corrosion solution in...

2015
Marco Facciotti Pedro S. Amaro Richard C.D. Brown Paul L. Lewin James A. Pilgrim Gordon Wilson Paul N. Jarman Ian W. Fletcher Richard C. D. Brown

Static secondary ion mass spectrometry was used to study the corrosion inhibitor Irgamet®39 on the surface of copper treated in insulating oils and the effect of temperature changes, by means of temperature programmed desorption experiments under vacuum, on metal coverage. Four commercial oils, both corrosive and noncorrosive, showed no significant influence on the stability of the tolyltriazol...

2012
Hui Cang Wenyan Shi Jinling Shao Qi Xu

The inhibition for the corrosion of mild steel in sulphuric acid solution by the extract of Stevia rebaudiana leaves has been studied using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques. Inhibition was found to increase with increasing concentration of the leaves extract. The effect of temperature on the corrosion behavior of mild steel in 0.5M H2SO4 w...

2015
I. Jevremović M. Singer M. Achour V. Mišković - Stanković S. Nešić

Innovative top-of-the-line corrosion (TLC) inhibition techniques are being investigated as an alternative to batch treatment. A novel idea consists of injecting the corrosion inhibitor within a foam matrix. Previously, a “proof of concept” validation of the novel TLC mitigation method was successfully conducted in a small-scale laboratory setup. The findings in this paper present the next step ...

2013
Sutiana Junaedi Ahmed A. Al-Amiery Abdulhadi Kadihum Abdul Amir H. Kadhum Abu Bakar Mohamad

1,5-Dimethyl-4-((2-methylbenzylidene)amino)-2-phenyl-1H-pyrazol-3(2H)-one (DMPO) was synthesized to be evaluated as a corrosion inhibitor. The corrosion inhibitory effects of DMPO on mild steel in 1.0 M HCl were investigated using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, open circuit potential (OCP) and electrochemical frequency modulation (EFM). The results s...

Journal: :journal of physical & theoretical chemistry 2012
m. shahidi e. sasaei m. ganjehkaviri m.r. gholamhosseinzadeh

vanillin offers interesting possibilities for corrosion inhibition because of its safe use and highsolubility in water. the effect of vanillin on the corrosion inhibition of aisi 304 stainless steel in0.5m h2so4 solution has been studied using potentiodynamic polarization and electrochemicalimpedance spectroscopy (eis). furthermore, this paper demonstrates that the electrochemical noise(en) tec...

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