The Experts below are selected from a list of 174 Experts worldwide ranked by ideXlab platform

Alvaro Meneguzzi - One of the best experts on this subject based on the ideXlab platform.

  • Anticorrosive acrylic intelligent paint
    Chemical Papers, 2019
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Alvaro Meneguzzi
    Abstract:

    The use of intrinsically conductive polymers, such as polyaniline (PAni), has been presented as an option for coatings or component of organic coatings with anticorrosive properties due to their electrochemical properties. From this, in this study was produced a binder composed by mixture of PAni base emeraldine (BE) to a plasticizer electrochemically inert plasticiser. The blend was added to a commercial acrylic paint (CAP), for the production of an acrylic intelligent paint (AIP) with anticorrosion properties, acting in Anodic Protection of carbon steel. The paint produced was characterized by physical–chemical methods of thickness measurement, scanning electron microscopy and RAMAN spectroscopy, which presented results indicating that the PAni BE binder is contained in the CAP, in resin form, in addition to preserve the main functions and desirable electrochemical characteristics of PAni for application as an anticorrosive coating. The electrochemical tests of cyclic voltammetry, open circuit potential and electrochemical impedance spectroscopy demonstrated that AIP acts to protect against corrosion of carbon steel via Anodic Protection.

  • Anodic Protection obtained by applying smart paint in carbon steel
    XX Congresso Brasileiro de Engenharia Química, 2015
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Vitor Silveira Maggi, Alvaro Meneguzzi
    Abstract:

    This work search introduce of a new alternative of organic coating without the presence of hazardous metals and replacement of commercial rectifiers used for Protection of oxidized metals by the method of Anodic Protection. From this, was produced of a Smart Paint (SP), basically composed of a Paint Polyurethane Commercial (PPC) mixed with a 1% of binder de base PAni EB and plasticizer chemically inert 4chloro-3-methylphenol. After, the SP and PPC were applied in plates of carbon steel, with the use of dip coat technique. SP was characterized by thermal analyzes and physicochemical beyond perform electrochemical tests of Cyclic Voltammetry (CV) and Open Circuit Potential (OCP), in aqueous solution 2 mol.L H2SO4. The results obtained allow us to state that the application of the binder to the PPC not significantly alters their physicochemical properties, and that the binder adds the ability to induce the formation or maintenance of protective oxides in oxidized metals exposed to harsh environments.

  • smart paint for Anodic Protection of steel
    Progress in Organic Coatings, 2015
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Carlos Arthur Ferreira, Carlos Aleman, Elaine Armelin, Alvaro Meneguzzi
    Abstract:

    In order to overcome the difficulties associated to the solubility and mechanical integrity of polyaniline (PAni) films, in this work we develop a binder by mixing PAni in the oxidized and undoped state (emeraldine base form) with 4-chloro-3-methylphenol, a plasticizer, and solvent. This binder has been used as a coating alone or combined with a conventional nitrocellulose paint to formulate the called Smart Paint. The characterization of binder films, which are cohesive and self-standing, shows the preservation of PAni properties, indicating that they satisfy the typical characteristics of anticorrosive coatings. Electrochemical assays have been carried out in H2SO4 solution using AISI 1006 steel plates coated with the binder and the Smart Paint. Results indicate that the binder and the Smart Paint promote the passivation of the metal substrate, reflecting their protecting abilities against corrosion. (C) 2014 Elsevier B.V. All rights reserved.

  • Anodic Protection of carbon steel aisi 1006 using the binder of undoped polyaniline
    Materials Science Forum, 2014
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Carlos Arthur Ferreira, Alvaro Meneguzzi
    Abstract:

    The use of intrinsically conductive polymers such as polyaniline (PAni) has been presented as an alternative protective coating against corrosion, it intensifies the effect of Anodic passivation and Protection of the material. Given the difficulty in obtaining films of polyaniline in the oxidized form and driver in a self-supported and cohesive on the surface of metal substrates. Was held the undoped of the polymer, with the use of NH4OH solution to passing the PAni oxidized state and non-conducting polyaniline emeraldine base known as PAni EB. The complete mixture of PAni EB, organic solvent and plasticizer 4-chloro-3-methylphenol, allowed to obtain a resin. This was applied in AISI 1006 steel plates with the aid equipment Spin Coater. The film was characterized by thermal analysis TGA, where it was found that the coating is the result of the reaction components, predominantly the structure of PAni EB. The electrochemical tests of Cyclic Voltammetry and Potential Open Circuit were carried out in 2 molL-1 H2SO4 solution, which indicated the formation of redox couple polymer-metal, which provides the formation of passivating oxides, which allow the metal Anodic Protection against corrosion.

Rodrigo Sanchotene Silva - One of the best experts on this subject based on the ideXlab platform.

  • Anticorrosive acrylic intelligent paint
    Chemical Papers, 2019
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Alvaro Meneguzzi
    Abstract:

    The use of intrinsically conductive polymers, such as polyaniline (PAni), has been presented as an option for coatings or component of organic coatings with anticorrosive properties due to their electrochemical properties. From this, in this study was produced a binder composed by mixture of PAni base emeraldine (BE) to a plasticizer electrochemically inert plasticiser. The blend was added to a commercial acrylic paint (CAP), for the production of an acrylic intelligent paint (AIP) with anticorrosion properties, acting in Anodic Protection of carbon steel. The paint produced was characterized by physical–chemical methods of thickness measurement, scanning electron microscopy and RAMAN spectroscopy, which presented results indicating that the PAni BE binder is contained in the CAP, in resin form, in addition to preserve the main functions and desirable electrochemical characteristics of PAni for application as an anticorrosive coating. The electrochemical tests of cyclic voltammetry, open circuit potential and electrochemical impedance spectroscopy demonstrated that AIP acts to protect against corrosion of carbon steel via Anodic Protection.

  • Anodic Protection obtained by applying smart paint in carbon steel
    XX Congresso Brasileiro de Engenharia Química, 2015
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Vitor Silveira Maggi, Alvaro Meneguzzi
    Abstract:

    This work search introduce of a new alternative of organic coating without the presence of hazardous metals and replacement of commercial rectifiers used for Protection of oxidized metals by the method of Anodic Protection. From this, was produced of a Smart Paint (SP), basically composed of a Paint Polyurethane Commercial (PPC) mixed with a 1% of binder de base PAni EB and plasticizer chemically inert 4chloro-3-methylphenol. After, the SP and PPC were applied in plates of carbon steel, with the use of dip coat technique. SP was characterized by thermal analyzes and physicochemical beyond perform electrochemical tests of Cyclic Voltammetry (CV) and Open Circuit Potential (OCP), in aqueous solution 2 mol.L H2SO4. The results obtained allow us to state that the application of the binder to the PPC not significantly alters their physicochemical properties, and that the binder adds the ability to induce the formation or maintenance of protective oxides in oxidized metals exposed to harsh environments.

  • smart paint for Anodic Protection of steel
    Progress in Organic Coatings, 2015
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Carlos Arthur Ferreira, Carlos Aleman, Elaine Armelin, Alvaro Meneguzzi
    Abstract:

    In order to overcome the difficulties associated to the solubility and mechanical integrity of polyaniline (PAni) films, in this work we develop a binder by mixing PAni in the oxidized and undoped state (emeraldine base form) with 4-chloro-3-methylphenol, a plasticizer, and solvent. This binder has been used as a coating alone or combined with a conventional nitrocellulose paint to formulate the called Smart Paint. The characterization of binder films, which are cohesive and self-standing, shows the preservation of PAni properties, indicating that they satisfy the typical characteristics of anticorrosive coatings. Electrochemical assays have been carried out in H2SO4 solution using AISI 1006 steel plates coated with the binder and the Smart Paint. Results indicate that the binder and the Smart Paint promote the passivation of the metal substrate, reflecting their protecting abilities against corrosion. (C) 2014 Elsevier B.V. All rights reserved.

  • Anodic Protection of carbon steel aisi 1006 using the binder of undoped polyaniline
    Materials Science Forum, 2014
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Carlos Arthur Ferreira, Alvaro Meneguzzi
    Abstract:

    The use of intrinsically conductive polymers such as polyaniline (PAni) has been presented as an alternative protective coating against corrosion, it intensifies the effect of Anodic passivation and Protection of the material. Given the difficulty in obtaining films of polyaniline in the oxidized form and driver in a self-supported and cohesive on the surface of metal substrates. Was held the undoped of the polymer, with the use of NH4OH solution to passing the PAni oxidized state and non-conducting polyaniline emeraldine base known as PAni EB. The complete mixture of PAni EB, organic solvent and plasticizer 4-chloro-3-methylphenol, allowed to obtain a resin. This was applied in AISI 1006 steel plates with the aid equipment Spin Coater. The film was characterized by thermal analysis TGA, where it was found that the coating is the result of the reaction components, predominantly the structure of PAni EB. The electrochemical tests of Cyclic Voltammetry and Potential Open Circuit were carried out in 2 molL-1 H2SO4 solution, which indicated the formation of redox couple polymer-metal, which provides the formation of passivating oxides, which allow the metal Anodic Protection against corrosion.

Jie Hu - One of the best experts on this subject based on the ideXlab platform.

  • the use of doped polyaniline as an electrode in the galvanic Anodic Protection of ferrous metals in industrial acid solutions
    Materials and Corrosion-werkstoffe Und Korrosion, 2007
    Co-Authors: Jie Hu, Shuhu Xiao, Lian Zhong
    Abstract:

    In order to investigate the galvanic Anodic Protection (GAP) of ferrous metals (such as 410, 304 and 316 stainless steels) in acid solutions by doped polyaniline (PANi), separate doped PANi powder-pressed electrodes with different surface areas (the area ratio of the PANi electrode to stainless steel is between 1:1 and 1:2) have been prepared. These were coupled with ferrous metal in the following solutions: 5 M sulphuric acid, 5 M phosphoric acid and industrial phosphoric acid (containing 5 M phosphoric acid and 0.05% chloride ion) to construct a galvanic cell, in which PANi is cathode while ferrous metal is anode. The results indicate that a PANi electrode with sufficient area can provide corrosion Protection to stainless steel in these acidic solutions. A pilot scale coupling experiment was carried out. The results indicate that PANi is a promising material as an electrode for the Anodic Protection of ferrous metals in acidic solutions in industrial situations.

  • application of polyaniline to galvanic Anodic Protection on stainless steel in h2so4 solutions
    Corrosion Science, 2006
    Co-Authors: Lian Zhong, Shuhu Xiao, Jie Hu
    Abstract:

    A stand-alone polyaniline (PANI) film electrode was made and then applied to protect 1Cr13 stainless steel (a type of stainless steel typically used in China, 0-15% C, 13% Cr) from corrosion in highly acidic solution, up to 5 M H2SO4. The stand-alone PANI electrode and 1Cr13 were coupled to study their galvanic interactions. PANI is a cathode while 1Cr13 is an Anodic. The results indicate that PANI with a certain area can quickly passivate the stainless steel and effectively maintain the steady passive state for a long period of time. This specific method of PANI preventing 1Cr13 from corrosion is called galvanic Anodic Protection (GAP). Moreover, the efficiency, mechanism, and security of GAP were discussed. The results demonstrate that the stand-alone PANI electrode may have a potential application to galvanic Anodic Protection on stainless steel in highly corrosive H2SO4 solutions. (c) 2006 Elsevier Ltd. All rights reserved.

Jane Zoppas Ferreira - One of the best experts on this subject based on the ideXlab platform.

  • Anticorrosive acrylic intelligent paint
    Chemical Papers, 2019
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Alvaro Meneguzzi
    Abstract:

    The use of intrinsically conductive polymers, such as polyaniline (PAni), has been presented as an option for coatings or component of organic coatings with anticorrosive properties due to their electrochemical properties. From this, in this study was produced a binder composed by mixture of PAni base emeraldine (BE) to a plasticizer electrochemically inert plasticiser. The blend was added to a commercial acrylic paint (CAP), for the production of an acrylic intelligent paint (AIP) with anticorrosion properties, acting in Anodic Protection of carbon steel. The paint produced was characterized by physical–chemical methods of thickness measurement, scanning electron microscopy and RAMAN spectroscopy, which presented results indicating that the PAni BE binder is contained in the CAP, in resin form, in addition to preserve the main functions and desirable electrochemical characteristics of PAni for application as an anticorrosive coating. The electrochemical tests of cyclic voltammetry, open circuit potential and electrochemical impedance spectroscopy demonstrated that AIP acts to protect against corrosion of carbon steel via Anodic Protection.

  • Anodic Protection obtained by applying smart paint in carbon steel
    XX Congresso Brasileiro de Engenharia Química, 2015
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Vitor Silveira Maggi, Alvaro Meneguzzi
    Abstract:

    This work search introduce of a new alternative of organic coating without the presence of hazardous metals and replacement of commercial rectifiers used for Protection of oxidized metals by the method of Anodic Protection. From this, was produced of a Smart Paint (SP), basically composed of a Paint Polyurethane Commercial (PPC) mixed with a 1% of binder de base PAni EB and plasticizer chemically inert 4chloro-3-methylphenol. After, the SP and PPC were applied in plates of carbon steel, with the use of dip coat technique. SP was characterized by thermal analyzes and physicochemical beyond perform electrochemical tests of Cyclic Voltammetry (CV) and Open Circuit Potential (OCP), in aqueous solution 2 mol.L H2SO4. The results obtained allow us to state that the application of the binder to the PPC not significantly alters their physicochemical properties, and that the binder adds the ability to induce the formation or maintenance of protective oxides in oxidized metals exposed to harsh environments.

  • smart paint for Anodic Protection of steel
    Progress in Organic Coatings, 2015
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Carlos Arthur Ferreira, Carlos Aleman, Elaine Armelin, Alvaro Meneguzzi
    Abstract:

    In order to overcome the difficulties associated to the solubility and mechanical integrity of polyaniline (PAni) films, in this work we develop a binder by mixing PAni in the oxidized and undoped state (emeraldine base form) with 4-chloro-3-methylphenol, a plasticizer, and solvent. This binder has been used as a coating alone or combined with a conventional nitrocellulose paint to formulate the called Smart Paint. The characterization of binder films, which are cohesive and self-standing, shows the preservation of PAni properties, indicating that they satisfy the typical characteristics of anticorrosive coatings. Electrochemical assays have been carried out in H2SO4 solution using AISI 1006 steel plates coated with the binder and the Smart Paint. Results indicate that the binder and the Smart Paint promote the passivation of the metal substrate, reflecting their protecting abilities against corrosion. (C) 2014 Elsevier B.V. All rights reserved.

  • Anodic Protection of carbon steel aisi 1006 using the binder of undoped polyaniline
    Materials Science Forum, 2014
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Carlos Arthur Ferreira, Alvaro Meneguzzi
    Abstract:

    The use of intrinsically conductive polymers such as polyaniline (PAni) has been presented as an alternative protective coating against corrosion, it intensifies the effect of Anodic passivation and Protection of the material. Given the difficulty in obtaining films of polyaniline in the oxidized form and driver in a self-supported and cohesive on the surface of metal substrates. Was held the undoped of the polymer, with the use of NH4OH solution to passing the PAni oxidized state and non-conducting polyaniline emeraldine base known as PAni EB. The complete mixture of PAni EB, organic solvent and plasticizer 4-chloro-3-methylphenol, allowed to obtain a resin. This was applied in AISI 1006 steel plates with the aid equipment Spin Coater. The film was characterized by thermal analysis TGA, where it was found that the coating is the result of the reaction components, predominantly the structure of PAni EB. The electrochemical tests of Cyclic Voltammetry and Potential Open Circuit were carried out in 2 molL-1 H2SO4 solution, which indicated the formation of redox couple polymer-metal, which provides the formation of passivating oxides, which allow the metal Anodic Protection against corrosion.

Carlos Arthur Ferreira - One of the best experts on this subject based on the ideXlab platform.

  • smart paint for Anodic Protection of steel
    Progress in Organic Coatings, 2015
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Carlos Arthur Ferreira, Carlos Aleman, Elaine Armelin, Alvaro Meneguzzi
    Abstract:

    In order to overcome the difficulties associated to the solubility and mechanical integrity of polyaniline (PAni) films, in this work we develop a binder by mixing PAni in the oxidized and undoped state (emeraldine base form) with 4-chloro-3-methylphenol, a plasticizer, and solvent. This binder has been used as a coating alone or combined with a conventional nitrocellulose paint to formulate the called Smart Paint. The characterization of binder films, which are cohesive and self-standing, shows the preservation of PAni properties, indicating that they satisfy the typical characteristics of anticorrosive coatings. Electrochemical assays have been carried out in H2SO4 solution using AISI 1006 steel plates coated with the binder and the Smart Paint. Results indicate that the binder and the Smart Paint promote the passivation of the metal substrate, reflecting their protecting abilities against corrosion. (C) 2014 Elsevier B.V. All rights reserved.

  • Anodic Protection of carbon steel aisi 1006 using the binder of undoped polyaniline
    Materials Science Forum, 2014
    Co-Authors: Rodrigo Sanchotene Silva, Jane Zoppas Ferreira, Carlos Arthur Ferreira, Alvaro Meneguzzi
    Abstract:

    The use of intrinsically conductive polymers such as polyaniline (PAni) has been presented as an alternative protective coating against corrosion, it intensifies the effect of Anodic passivation and Protection of the material. Given the difficulty in obtaining films of polyaniline in the oxidized form and driver in a self-supported and cohesive on the surface of metal substrates. Was held the undoped of the polymer, with the use of NH4OH solution to passing the PAni oxidized state and non-conducting polyaniline emeraldine base known as PAni EB. The complete mixture of PAni EB, organic solvent and plasticizer 4-chloro-3-methylphenol, allowed to obtain a resin. This was applied in AISI 1006 steel plates with the aid equipment Spin Coater. The film was characterized by thermal analysis TGA, where it was found that the coating is the result of the reaction components, predominantly the structure of PAni EB. The electrochemical tests of Cyclic Voltammetry and Potential Open Circuit were carried out in 2 molL-1 H2SO4 solution, which indicated the formation of redox couple polymer-metal, which provides the formation of passivating oxides, which allow the metal Anodic Protection against corrosion.