New Type Of Additive Of Ethanolamine Phosphate

New Type Of Additive Of Ethanolamine Phosphate

Ethanolamine phosphate is a new type of additive, belonging to the phosphate compound, which can be widely used in chemical fiber, textile, leather, plastic, paper, cosmetics and other industrial fields.
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Ethanolamine phosphate is a new type of additive, belonging to the phosphate compound, which can be widely used in chemical fiber, textile, leather, plastic, paper, cosmetics and other industrial fields.

Ethanolamine phosphate has amino groups and phosphate groups, which are easy to form covalent bonds and feedback structures with metal atoms, and form a dense protective film on the metal surface, which inhibits metal corrosion.Study uses ethanolamine phosphate for glycol-based aqueous solutions. Corrosion inhibitors, to explore its corrosion inhibition performance and mechanism, has important theoretical and practical application value.

Based on the self-synthesis of ethanolamine phosphate, the experts used a combination of weight loss experiment and electrochemistry to study the corrosion inhibition performance and mechanism of ethanolamine phosphate on carbon steel in a glycol-based aqueous solution system. The research results show that with the increase of the concentration of ethanolamine phosphate, the corrosion rate gradually decreases. The corrosion inhibition efficiency measured by the weight loss method conforms to the Langmuir adsorption isotherm. As the immersion time increases, the corrosion potential continues to move positively, and the corrosion current density continues to decrease. The corrosion process is mainly controlled by the anode process. Its electrochemical impedance spectrum is composed of two capacitive reactance arcs with two time constants, respectively It is the two processes of formation and destruction of the corrosion inhibitor film on the carbon steel interface. Quantum chemical calculations can show that the highest orbital occupied energy and the lowest orbital occupied energy of ethanolamine phosphate are mainly delocalized near the amino group and the phosphate group. This shows that when Ethanol Beta Amino Phosphoric acid is adsorbed on the surface of carbon steel, it mainly depends on -NH3 and -P. =0 and the metal atom form a covalent bond and feedback structure is adsorbed on the metal surface to form a dense corrosion inhibitor protective film, thereby playing a role in blocking the corrosive medium . Minimize the system energy and maintain it in the most stable state, effectively blocking corrosive media


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