Assessment of Charge Transport Through Barrier Membranes Before Application on Materials Surfaces
Abstract This work aims at investigating the charge transfer resistance (RCT) of the two membranes derived from vegetable oils which are intended to protect materials against corrosion. The membranes were characterized by thickness measurement (328±1 μm and 491± 1 μm), atomic force microscopy (AFM)...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2022-09-01
|
| Series: | Materials Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392022000100355&tlng=en |
| _version_ | 1811262217740353536 |
|---|---|
| author | Jéssica Verger Nardeli Cecílio Sadao Fugivara Assis Vicente Benedetti |
| author_facet | Jéssica Verger Nardeli Cecílio Sadao Fugivara Assis Vicente Benedetti |
| author_sort | Jéssica Verger Nardeli |
| collection | DOAJ |
| description | Abstract This work aims at investigating the charge transfer resistance (RCT) of the two membranes derived from vegetable oils which are intended to protect materials against corrosion. The membranes were characterized by thickness measurement (328±1 μm and 491± 1 μm), atomic force microscopy (AFM) to estimate of roughness (<0.5 μm), Raman spectroscopy while the RCT values were evaluated by electrochemical impedance spectroscopy (EIS) in 0.1 mol/L KCl solution. EIS was used to measure the impedance at low frequency (Z0.01Hz ≅ 109 Ω cm2), RCT ≅ 109 Ω cm2 and exchange current density (i0 ≅ 10-11 Ω cm2), employing simple instrumentation. The thickness of the membrane must be considered for coherent interpretation of the impedance results. The study of electrolytes permeation in membranes is important to previously estimate the lifetime offered to a substrate over the time of immersion even before being applied to the metallic surface. The impedance measurements demonstrated that the most resistant membrane to permeation presented a RCT around 2 GΩ cm2. This EIS measurements approach enables the optimization of membrane fabrication by conveniently identifying the best formulation. |
| first_indexed | 2024-04-12T19:21:16Z |
| format | Article |
| id | doaj.art-1b70d9e6bad14922a0a4ac1b02a7ba70 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-04-12T19:21:16Z |
| publishDate | 2022-09-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-1b70d9e6bad14922a0a4ac1b02a7ba702022-12-22T03:19:35ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392022-09-012510.1590/1980-5373-mr-2022-0129Assessment of Charge Transport Through Barrier Membranes Before Application on Materials SurfacesJéssica Verger Nardelihttps://orcid.org/0000-0003-4240-3863Cecílio Sadao FugivaraAssis Vicente Benedettihttps://orcid.org/0000-0002-0243-6639Abstract This work aims at investigating the charge transfer resistance (RCT) of the two membranes derived from vegetable oils which are intended to protect materials against corrosion. The membranes were characterized by thickness measurement (328±1 μm and 491± 1 μm), atomic force microscopy (AFM) to estimate of roughness (<0.5 μm), Raman spectroscopy while the RCT values were evaluated by electrochemical impedance spectroscopy (EIS) in 0.1 mol/L KCl solution. EIS was used to measure the impedance at low frequency (Z0.01Hz ≅ 109 Ω cm2), RCT ≅ 109 Ω cm2 and exchange current density (i0 ≅ 10-11 Ω cm2), employing simple instrumentation. The thickness of the membrane must be considered for coherent interpretation of the impedance results. The study of electrolytes permeation in membranes is important to previously estimate the lifetime offered to a substrate over the time of immersion even before being applied to the metallic surface. The impedance measurements demonstrated that the most resistant membrane to permeation presented a RCT around 2 GΩ cm2. This EIS measurements approach enables the optimization of membrane fabrication by conveniently identifying the best formulation.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392022000100355&tlng=enMembranepristine organic filmpermeationcorrosion protection |
| spellingShingle | Jéssica Verger Nardeli Cecílio Sadao Fugivara Assis Vicente Benedetti Assessment of Charge Transport Through Barrier Membranes Before Application on Materials Surfaces Materials Research Membrane pristine organic film permeation corrosion protection |
| title | Assessment of Charge Transport Through Barrier Membranes Before Application on Materials Surfaces |
| title_full | Assessment of Charge Transport Through Barrier Membranes Before Application on Materials Surfaces |
| title_fullStr | Assessment of Charge Transport Through Barrier Membranes Before Application on Materials Surfaces |
| title_full_unstemmed | Assessment of Charge Transport Through Barrier Membranes Before Application on Materials Surfaces |
| title_short | Assessment of Charge Transport Through Barrier Membranes Before Application on Materials Surfaces |
| title_sort | assessment of charge transport through barrier membranes before application on materials surfaces |
| topic | Membrane pristine organic film permeation corrosion protection |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392022000100355&tlng=en |
| work_keys_str_mv | AT jessicavergernardeli assessmentofchargetransportthroughbarriermembranesbeforeapplicationonmaterialssurfaces AT ceciliosadaofugivara assessmentofchargetransportthroughbarriermembranesbeforeapplicationonmaterialssurfaces AT assisvicentebenedetti assessmentofchargetransportthroughbarriermembranesbeforeapplicationonmaterialssurfaces |