Primers based on tara and quebracho tannins for poorly prepared steel surfaces

Steel panels must be protected during storage and transportation because they can corrode.This protection used to be afforded by chromate primers, but now a days tannin-based primers are being studied.These primers are not only used as protection but also as adhesion promoter if the steel surfacewas...

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Detalles Bibliográficos
Autores principales: Byrne, Christian Eduardo, D'Alessandro, Oriana, Selmi, Gonzalo Julián, Romagnoli, Roberto, Deyá, Marta Cecilia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Ingeniería Química
Primers
Lanthanum
Tannins
Poorly surface preparation
Electrochemical test
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/95580
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-95580
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Química
Primers
Lanthanum
Tannins
Poorly surface preparation
Electrochemical test
spellingShingle Ingeniería Química
Primers
Lanthanum
Tannins
Poorly surface preparation
Electrochemical test
Byrne, Christian Eduardo
D'Alessandro, Oriana
Selmi, Gonzalo Julián
Romagnoli, Roberto
Deyá, Marta Cecilia
Primers based on tara and quebracho tannins for poorly prepared steel surfaces
topic_facet Ingeniería Química
Primers
Lanthanum
Tannins
Poorly surface preparation
Electrochemical test
description Steel panels must be protected during storage and transportation because they can corrode.This protection used to be afforded by chromate primers, but now a days tannin-based primers are being studied.These primers are not only used as protection but also as adhesion promoter if the steel surfacewas not well prepared (presence of oxides or low roughness). The objective of this work was to prepare lanthanum“tannate”,employing tara and quebracho tannins. The “tannates”were incorporated in primers formulation and applied on steel SAE1010 panels (previously exposed to the humidity chamber or with 6μm of roughness depth). These primed panels were exposed to humidity chamber where corrosion and blistering degrees were evaluated. Adhesion test were done. Electrochemical assays such as ionic resistance and corrosion potential measurements were carried out. Results showed that the adhesion and the barrier properties of the primers were good. Besides, on low roughness steel, the primers diminished the corrosion current. Results were compared with traditional zinc tetroxy chromate primer.
format Articulo
Articulo
author Byrne, Christian Eduardo
D'Alessandro, Oriana
Selmi, Gonzalo Julián
Romagnoli, Roberto
Deyá, Marta Cecilia
author_facet Byrne, Christian Eduardo
D'Alessandro, Oriana
Selmi, Gonzalo Julián
Romagnoli, Roberto
Deyá, Marta Cecilia
author_sort Byrne, Christian Eduardo
title Primers based on tara and quebracho tannins for poorly prepared steel surfaces
title_short Primers based on tara and quebracho tannins for poorly prepared steel surfaces
title_full Primers based on tara and quebracho tannins for poorly prepared steel surfaces
title_fullStr Primers based on tara and quebracho tannins for poorly prepared steel surfaces
title_full_unstemmed Primers based on tara and quebracho tannins for poorly prepared steel surfaces
title_sort primers based on tara and quebracho tannins for poorly prepared steel surfaces
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/95580
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