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Listar por palabra clave "FTIR"

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Applying chemometric procedures for correlation the FTIR spectroscopy with the new thermometric evaluation of Total Acid Number and Total Basic Number in engine oils

Macian Martinez, Vicente; Tormos, B.; García-Barberá, Antonio; Tsolakis, Athanasios (Elsevier, 2021-01-15)

[EN] Currently, the main trend is to employ spectroscopic techniques for the condition assessment of used engine oils. That is a consequence of the requirement for increasing the Oil Condition Monitoring (OCM) efficiency. ...
Characterisation of thermal and chemical properties of photo-oxidized reinforced Mater-Bi KE/natural fibres biocomposites degraded in soil

Moriana Torró, Rosana (Universitat Politècnica de València, 2016-02-22)

Reinforced biocomposites of natural fibres (cotton and kenaf fibres) with a commercial biodegradable material (Mater-Bi KE03B1) were subjected to an accelerated soil burial test. A set of samples was previously photo-oxidized ...
Characterization of Crosslinked Poly(vinyl alcohol)-Based Membranes with Different Hydrolysis Degrees for Their Use as Electrolytes in Direct Methanol Fuel Cells

Martinez-Felipe, Alfonso; Moliner Estopiñán, Cristina Elia; Imrie, Corrie Thomas; Ribes Greus, María Desamparados (Wiley, 2012-04-15)

The effect of the degree of hydrolysis of poly(vinyl alcohol) (PVA) substrates on the preparation and properties of crosslinked membranes prepared via esterification with sulfosuccinic acid (SSA) has been studied using ...
Determination of the total acid number (TAN) of used mineral oils in aviation engines by FTIR using regression models

Leal De-Rivas, Beatríz Cecilia; Vivancos, José-Luis; Ordieres Meré, Joaquín; Capuz-Rizo, Salvador F. (Elsevier, 2017)

[EN] Total acid number (TAN) has been considered an important indicator of the oil quality of used oils. TAN is determined by potentiometric titration, which is time-consuming and requires solvent. A more convenient approach ...
Development of analytical methods for the characterization of tempera paintings at micro- and nano-scale and their deterioration and biodeterioration processes

ORTIZ MIRANDA, ANNETTE (Universitat Politècnica de València, 2017-11-06)

Egg (the whole, the yolk or the white) is a natural product used since ancient times as tempera painting medium mainly in Europe and the Mediterranean Basin countries. In addition, egg is a complex multicomponent microstructured ...
Dyeing Behavior and Characterization of Recycled Cotton and Chitosan Blended Fabrics

Toprak-Cavdur, Tuba; Uysal, Serkan; Anis, Pervin (Taylor & Francis, 2022-07-09)

[EN] The cultivation and wet processing of cotton is very harmful to the environ-ment. Recycling of cotton is an important way to reduce its environmental impact. For this purpose, recycled cotton by using it in a mixture ...
Dyeing Recycled Cotton Fibers Using Curcuma Longa and Pterocarpus Santalinus Natural Dyes and Bio-mordant Chitosan

Toprak-Cavdur, Tuba; Uysal, Serkan; Gisbert Paya, Jaime (Taylor & Francis, 2022-11-28)

[EN] Problems such as the depletion of natural resources and the increase in envir-onmental pollution brought about by industrialization, the concept of recycling gained great importance. Natural dyes have gained importance ...
Dyeing with Hydrotalcite Hybrid Nanoclays and Disperse, Basic and Direct Dyes

López-Rodríguez, Daniel; Jordán-Núñez, Jorge; Gisbert Paya, Jaime; Díaz-García, Pablo; Bou-Belda, Eva (MDPI AG, 2023-01)

[EN] Textile effluents are among the most polluting industrial effluents in the world. Textile finishing processes, especially dyeing, discharge large quantities of waste that is difficult to treat, such as dyes. By ...
El bifaz de la Pobla de Vallbona. Puesta en valor a través de la restauración y el estudio de la pieza

Oliver López, Beatriz (Universitat Politècnica de València, 2020-09-28)

[ES] Uno de los factores de degradación más peligrosos y que menos se suele tener en cuenta es el olvido de las piezas, como consecuencia de la falta de comprensión de la misma, la pérdida de su funcionalidad o la falta ...
El Mantón de Manila. Examen morfológico, iconográfico y material, en pro de su conservación y restauración. Criterios y metodología de intervención para su consolidación

Arbues Fandos, Natalia Concepción (Universitat Politècnica de València, 2016-03-07)

[EN] As it happens with any wearable accessory, Manila embroidered silk shawls usually evidence pathologies that have mainly to do with mechanical weakness and failure. This research emerged after studying several Manila ...
Electrochemical characterization of biodeterioration of paint films containing cadmium yellow pigment

Ortiz-Miranda, Annette; Domenech Carbo, Antonio; Domenech Carbo, Mª Teresa; Osete Cortina, Laura; Valle-Algarra, Francisco M.; Bolivar Galiano, Fernando; Martin Sanchez, Ines; López Miras, María del Mar (Springer-Verlag, 2016)

[EN] The voltammetry of microparticles (VMP) methodology was used to characterize the biological attack of different bacteria and fungi to reconstructed egg tempera and egg linseed oil emulsion paint films containing cadmium ...
Electrochemical synthesis of polyaniline on conducting fabrics of polyester covered with polypyrrole/PW12O403-. Chemical and electrochemical characterization

Molina Puerto, Javier; Fernández Sáez, Javier; Del Río García, Ana Isabel; Bonastre Cano, José Antonio; Cases Iborra, Francisco Javier (Elsevier, 2011-06)

Polyaniline (Pani) has been electrochemically polymerized on conducting fabrics of polyester covered with polypyrrole/PW 12O 40 3-, obtaining a double conducting polymer layer. Electrochemical synthesis was performed by ...
Estudio de fuentes alternativas a la madera para la obtencion de celulosa

Dhia, Mehdi (Universitat Politècnica de València, 2021-10-22)

[ES] Este trabajo se dedica a estudiar tres fuentes alternativas a la madera para la obtención de la celulosa que son bagazo de alcachofa (Cynara scolymus), tallo de malva (Malva arborea) y espiga de maíz (Zea mays). Se ...
Estudio de la efectividad de blanqueo en el tejido de algodón mediante el sistema tradicional coreano y dos sistemas químicos actuales

Vicente Palomino, Sofía; Namgoung, Seol; Yusa Marco, Dolores Julia; Montesinos Ferrandis, Eva María; Fuster López, Laura (Instituto Universitario de Restauración del Patrimonio de la UPV, 2011)

El tratamiento de blanqueo, es utilizado en el ámbito de la conservación de tejidos, solo en casos muy específicos debido a que estos tratamientos tradicionalmente han sido muy agresivos. En la actualidad se están investigando ...
Estudio del rol de los agregados minerales en la formación, envejecimiento y conservación de películas pictóricas al óleo

Aguado Guardiola, Elena (Universitat Politècnica de València, 2017-11-06)

Very few stone sculptures conserve their original polychromy nowadays so the exceptional condition presented by the oil paint film of the Tomb of Chancellor Villaespesa in the Cathedral of Tudela (Spain) here presented as ...
EVALUACIÓN DE LAS VARIABLES QUE INFLUYEN EN LA APLICACIÓN DE PARTÍCULAS SÓLIDAS DE TAMAÑO REDUCIDO A ESTRUCTURAS TEXTILES LAMINARES

Bou Belda, Eva (Universitat Politècnica de València, 2014-07-29)

La tesis versa sobre aplicación de micro y nanopartículas sólidas sobre productos textiles. El objetivo es funcionalizar las estructuras tratadas, aportando nuevas propiedades. La adhesión o ligado de las partículas se ...
EVALUACIÓN DE LAS VARIABLES QUE INTERVIENEN EN EL PROCESO DE APLICACIÓN DE MICROCÁPSULAS A ESTRUCTURAS TEXTILES

Capablanca Francés, Lucía (Editorial Universitat Politècnica de València, 2013-05-06)

La tesis trata sobre microcápsulas de aplicación de productos textiles y se centra en evaluar distintos sistemas de aplicación (impregnación, agotamiento, recubrimiento y pulverizado). Se evalúan variables que intervienen ...
Finding the Additives Incorporation Moment in Hybrid Natural Pigments Synthesis to Improve Bioresin Properties

Micó-Vicent, Bárbara; Jordán Núñez, Jorge; Perales Romero, Esther; Martínez-Verdú, Francisco Miguel; Cases, Francisco (MDPI AG, 2019)

[EN] Interest in applications of natural dye applications has increased because of their antibacterial properties and the possibility of extracting them from nature and residues. Using nanoclays as hosts to reinforce natural ...
FT-MIR determination of taste-related compounds in tomato: a high throughput phenotyping analysis for selection programs

Ibañez, G.; Valcárcel-Germes, Mercedes; Cebolla Cornejo, Jaime; ROSELLO RIPOLLES, SALVADOR (John Wiley & Sons, 2019-08-30)

[EN] BACKGROUND: Tomato taste is defined by the accumulation of sugars and organic acids. Individual analyses of these compounds using high-performance liquid chromatography (HPLC) or capillary zone electrophoresis (CZE) ...
Isothermal crystallization of poly(vinylidene fluoride) blended with the ionic liquid [Emim]2[Co(SCN)4]: Simultaneous analysis of crystalline phases by infrared spectroscopy and differential scanning calorimetry

Martins, Luis A.; Gomez Ribelles, Jose Luis; Costa, Carlos M.; Correia, Daniela M.; Lanceros-Méndez, Senentxu; Krakowsky, Ivan; Tort-Ausina, Isabel (Elsevier, 2024-03-15)

[EN] The combination of poly (vinylidene fluoride) (PVDF) with ionic liquids (ILs) is increasingly being studied for the development of smart materials. Together with the functional response provided by the IL, its ...