Exploració per autor "Azambuja, Denise S."
Ara es mostren els items 1-11 de 11
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A synergistic combination of tetraethylorthosilicate and multiphosphonic acid offers excellent corrosion protection to AA1100 aluminum alloy
Dalmoro, Viviane; dos Santos, João Henrique Zimnoch; Armelín Diggroc, Elaine Aparecida; Alemán Llansó, Carlos; Azambuja, Denise S. (2013-05-15)
Article
Accés restringit per política de l'editorialThis work describes a new mechanism for the incorporation of organophosphonic acid into silane self-assembly monolayers, which has been used to protect AA1100 aluminum alloy. The protection improvement has been attributed ... -
Composites based on epoxy resins and poly(3-thiophene methyl acetate) nanoparticles: mechanical and electrical properties
Pérez Madrigal, Mª del Mar; Armelín Diggroc, Elaine Aparecida; Azambuja, Denise S.; Estrany Coda, Francesc; Alemán Llansó, Carlos (2014-09-18)
Article
Accés obertConducting polymer nanocomposites (CPnC) have been prepared by loading different concentrations of poly(3-thiophene methyl acetate) (P3TMA) nanoparticles to an epoxy network. Therefore, the typical limitations of CPs ... -
Evaluation of an environmentally friendly anticorrosive pigment for alkyd primer
Martí Barroso, Mireia; Fabregat Jové, Georgina; Azambuja, Denise S.; Alemán Llansó, Carlos; Armelín Diggroc, Elaine Aparecida (2012-04)
Article
Accés restringit per política de l'editorialAn alkyd formulation containing zinc phosphate (10 wt.%) was prepared and subsequently modified replacing the latter anticorrosive additive by a very low concentration of conducting polymer. Specifically, three modified ... -
Hybrid organophosphonic-silane coating for corrosion protection of magnesium alloy AZ91: The influence of acid and alkali pre-treatments
Dalmoro, V.; Azambuja, Denise S.; Alemán Llansó, Carlos; Armelín Diggroc, Elaine Aparecida (Elsevier, 2019-01-15)
Article
Accés obertThis work reports the development of environmentally friendly coatings for the protection against corrosion of AZ91 magnesium alloy substrates. As a novelty, the synergic combination of the use of silica precursors and ... -
Hybrid polythiophene-clay exfoliated nanocomposites for ultracapacitor devices
Aradilla Zapata, David; Azambuja, Denise S.; Estrany Coda, Francesc; Casas Becerra, María Teresa; Ferreira, Carlos A.; Alemán Llansó, Carlos (2012-06-14)
Article
Accés restringit per política de l'editorialExfoliated nanocomposites of poly(3,4-ethylenedioxythiophene) (PEDOT) and montmorillonite (MMT) have been prepared by in situ anodic polymerization, concentrations of clay ranging from 5% w/w to 50% w/w being included ... -
Improving the corrosion performance of hybrid sol-gel matrix by modification with phosphonic acid
Dalmoro, Viviane; Dos Santos, J.H.Z.; baibich, Lone M; Butler, Ian S; Armelín Diggroc, Elaine Aparecida; Alemán Llansó, Carlos; Azambuja, Denise S. (2015-03-01)
Article
Accés obertSol-gel films were prepared using different ratios of two silica precursors, vinyltrimethoxysilane (VTMS) and tetraethylorthosilicate (TEOS), targeting the anticorrosion treatment of aluminum alloy 2024-T3. The electrochemical ... -
Microstructures of poly(N-methylpyrrole) and their interaction with morphine
Cruz Teixeira Dias, Bruno José da; Alemán Llansó, Carlos; Estrany Coda, Francesc; Azambuja, Denise S.; Armelín Diggroc, Elaine Aparecida (2011-06-30)
Article
Accés restringit per política de l'editorialMicrostructures of poly(N-methylpyrrole) have been generated by direct electrochemical oxidation of N-methylpyrrole with poly(styrenesulfonic acid) in aqueous solution, using a micelle formation mechanism with gas bubble ... -
Nanometric ultracapacitors fabricated using multilayer of conducting polymers on self-assembled octanethiol monolayers
Aradilla Zapata, David; Pérez Madrigal, Maria del Mar; Estrany Coda, Francesc; Azambuja, Denise S.; Iribarren Laco, José Ignacio; Alemán Llansó, Carlos (2013-06)
Article
Accés restringit per política de l'editorialSymmetric ultracapacitors have been fabricated considering nanometric 3-layered films made of alternated layers of poly(3,4-ethylenedioxythiophene) (external and internal layers) and polypyrrole (intermediate layer) deposited ... -
Phosphonic acid/silica-based films: A potential treatment for corrosion protection
Dalmoro, V.; dos Santos, João Henrique Zimnoch; Armelín Diggroc, Elaine Aparecida; Alemán Llansó, Carlos; Azambuja, Denise S. (2012-07)
Article
Accés restringit per política de l'editorialFilms of tetraethyl orthosilicate (TEOS) and 1,2-diaminoethanetetrakis methylenephosphonic acid (EDTPO) were evaluated as a anticorrosive treatment against corrosion for AA2024-T3 in a 0.05 mol L−1 NaCl solution. The ... -
Sol-gel hybrid films based on organosilane and montmorillonite for corrosion inhibition of AA2024
Dalmoro, V.; Dos Santos, J.H.Z.; Armelín Diggroc, Elaine Aparecida; Alemán Llansó, Carlos; Azambuja, Denise S. (2014-07-15)
Article
Accés restringit per política de l'editorialThe present work reports the production of films on AA2024-T3 composed of vinyltrimethoxysilane (VTMS)/tetraethylorthosilicate (TEOS) with incorporation of montmorillonite (sodium montmorillonite and montmorillonite modified ... -
The influence of organophosphonic acid and conducting polymer on the adhesion and protection of epoxy coating on aluminium alloy
Dalmoro, Viviane; Alemán Llansó, Carlos; Ferreira, Carlos Arthur; Dos Santos, J.H.Z.; Azambuja, Denise S.; Armelín Diggroc, Elaine Aparecida (2015-11-01)
Article
Accés obertIn the present study we compared the beneficial effect on the incorporation of modified silane nanocoating and conducting polymer additive to the adhesion and protection of aluminium surface with epoxy coating. Results ...