A5047007231- Corrosion Behavior and Inhibition
- Concrete Corrosion and Durability
- Polymer composites and self-healing
- Concrete and Cement Materials Research
- Surface Modification and Superhydrophobicity
- Bone Tissue Engineering Materials
- Titanium Alloys Microstructure and Properties
- Conducting polymers and applications
- Orthopaedic implants and arthroplasty
- Silicone and Siloxane Chemistry
- Asphalt Pavement Performance Evaluation
- Synthesis and properties of polymers
- Hydrogen embrittlement and corrosion behaviors in metals
- Fuel Cells and Related Materials
- Materials Engineering and Processing
- Anodic Oxide Films and Nanostructures
- Recycling and Waste Management Techniques
- Dental materials and restorations
- Extraction and Separation Processes
- Covalent Organic Framework Applications
Universidade Estadual Paulista (Unesp)
2017-2024
Centro Universitário de Araraquara
2017-2024
In this work, structural and active corrosion inhibition effects induced by lithium ion addition in organic-inorganic coatings based on poly(methyl methacrylate) (PMMA)-silica sol-gel have been investigated. The of increasing amounts carbonate (0, 500, 1000, 2000 ppm), yielded homogeneous hybrid with increased connectivity nanometric silica cross-link nodes, covalently linked to the PMMA matrix, improved adhesion aluminum substrate (AA7075). Electrochemical impedance spectroscopy (EIS),...
In the absence of preventive maintenance, corrosion structural steel by deterioration passive layer due to exposure aggressive environments is main failure factor reinforced concrete. To overcome economic, safety, and environmental implications, present research efforts focus on eco-friendly organic–inorganic hybrid coatings achieve effective protection reinforcing steel. Nanostructured PMMA (poly(methyl methacrylate))–silica developed combining reactions polymerization methyl methacrylate...
Reinforcement steel extensively applied in civil construction is susceptible to corrosion due the carbonation process reinforced concrete and chloride ions diffusion. Epoxy-silica-based coatings are a promising option guarantee long-term stability of structures. In this study, influence proportion between poly (bisphenol-A-co-epichlorhydrin) resin (DGEBA) curing agent diethylenetriamine (DETA) on structural, morphological, barrier properties epoxy-silica nanocomposites were evaluated. To...
Organic-inorganic coatings based on polymethyl methacrylate (PMMA)–silica–lithium are an efficient alternative to protect metals against corrosion. Although the preparation methodology is established and thin (~10 µm) highly protective, use of environmentally friendly solvent has not yet been addressed. In this work, PMMA–silica were synthesized using 2-propanol as a deposited aluminum alloy AA7075, widely used in aeronautical industry. Different concentrations lithium carbonate (0–4000 ppm)...
Nowadays, steel and light alloys, such as aluminum, magnesium, titanium, represent most of the primary components metallic structures in many applications [...]
Abstract Poly(methyl methacrylate) (PMMA)-silica coatings form a few micrometers thick anti-corrosive barrier that blocks the permeation of water and ions when exposed to harsh environments. Their excellent performance stands out for protecting steel aluminum alloys immersed in seawater long periods (> 2 years), making them compliant several applications marine, aeronautical, automotive industries, example. A key approach understanding degradation high-performance polymer hybrid over time...
Cerium salts in the form of ammonium cerium(IV) nitrate and cerium(III) hexahydrate are widely used as corrosion inhibitors due to their ability provide active protection against corrosion. When incorporated into polymeric, ceramic or hybrid coatings, cerium ions modify structure impart beneficial adverse effects barrier features, depending on concentration type salt added. In this study, we compare effect varying amounts Ce(III) Ce(IV) anti-corrosion properties poly(methyl methacrylate)...