Banca de DEFESA: ARTHUR VALBON RODRIGUES

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : ARTHUR VALBON RODRIGUES
DATA : 16/12/2019
HORA: 13:00
LOCAL: sala 50 DEQUIM
TÍTULO:

Synthesis of Schiff bases, polyvinylpyrrolidone and plant extract as green carbon steel corrosion inhibitors in acid medium

PALAVRAS-CHAVES:

corrosion

green anticorrosive agents

electrochemistry

PÁGINAS: 60
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Química
SUBÁREA: Química Orgânica
ESPECIALIDADE: Síntese Orgânica
RESUMO:

Corrosive processes are spontaneous and occur by the chemical or electrochemical action of the environment, generally promoting the degradation of metallic materials or not, which may be intensified by mechanical efforts. Corrosion is a harmful phenomenon for industries, buildings, road and rail bridges, homes and others. In industry corrosion acts by affecting the physical and chemical properties of metal or its alloys, making them unsuitable for the proper maintenance of industrial activities due to the risk of accidents, product contamination, environmental disasters, etc. Industrially applied metal structures are often exposed to means that facilitate corrosive processes, such as seawater and soil, and are damaged early enough, causing significant damage. Due to the numerous damage caused by corrosion, the development of increasingly effective methods of protection becomes necessary. As with other corrosion prevention techniques, the use of inhibitory agents has been a very promising alternative and organic inhibitors show significant efficiency. Inhibiting agents are substances which, when added to the corrosive medium, prevent or slow the development of corrosion reactions. To evaluate the inhibition efficiency in addition to the gravimetric mass loss technique, electrochemical techniques such as electrochemical impedance spectroscopy (EIS), linear polarization resistance (RPL), potentiodynamic polarization (PP) are used. Scanning electron microscopy and molecular modeling are also used to help understand the corrosion inhibition process.

MEMBROS DA BANCA:
Presidente - 387189 - AUREA ECHEVARRIA AZNAR NEVES LIMA
Interno - 102.827.717-27 - GUILHERME PEREIRA GUEDES - UFF
Interno - 3278519 - DARI CESARIN SOBRINHO
Externa à Instituição - SHEILA PRESSENTIN CARDOSO - IFRJ
Externo à Instituição - CLEBER BONFIM BARRETO JUNIOR - IFRJ