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Browsing by Subject "FTIR"

Now showing items 21-31 of 31

Medida de la acidez (TAN) mediante espectrometría infrarroja (FTIR) en aceites lubricantes de MCIA

Marín Re, Juan Diego (Universitat Politècnica de València, 2019-11-11)

[ES] El presente trabajo se centra en la obtención del índice TAN (de las siglas en inglés Total Acid Number) en aceites lubricantes empleados en motores de combustión interna alternativos (MCIA). Dicho índice se obtiene ...
Metodología para la caracterización de aceites usados en aviación basada en técnicas espectroscópicas

Leal de Rivas, Beatriz Cecilia (Universitat Politècnica de València, 2015-03-30)

Esta tesis se enmarca en el programa de doctorado realizado por convenio entre la Facultad de Ingeniería de la UNIMET (Caracas) y el Departamento de Proyectos de Ingeniería de la Universidad Politécnica de Valencia. La ...
Modification of surface wettability of sodium ionomer sheets via atmospheric plasma treatment

España Giner, José Manuel; García Sanoguera, David; Sánchez Nacher, Lourdes; López Martínez, Juan; Balart Gimeno, Rafael Antonio (Wiley-Blackwell, 2012-12)

[EN] In this study, atmospheric plasma treatment has been used to modify the wetting properties of ethylene-methacrylic acid sodium ionomer. The effects of the plasma treatment on surface properties of this ionomer have ...
New insights into the geochemical processes occurring on the surface of stuccoes made of slaked lime putty

Pocostales, Luciana; Pitarch, Africa; Guasch Ferré, Núria; Domenech Carbo, Mª Teresa; Prada-Pérez, José Luis (MDPI AG, 2023-01-24)

[EN] The fresco technique performed with slaked lime putty as binding material has been well known since Antiquity. However, the geochemical processes that occur on the surface have been generally described as part of the ...
Petrological characterisation of the 'Barxeta Crema' and 'Buixcarró Rosa' limestones (Valencia, Spain)

Kröner, Stephan Ulrich; Mas Barberà, Xavier; Domenech Carbo, Mª Teresa; Domenech Carbo, Antonio; Roig Salom, José Luis (Instituto Universitario de Restauración del Patrimonio de la UPV, 2007)

Las dos rocas analizadas están localizadas en los municipios de Barxeta (Barxeta crema) y Quatretonda (buixcarró rosa; Sierra de Buixcarró) en la parte sur de la provincia de Valencia. Estas macizas y en su mayoría ...
Printing and dyeing of halloysite nano clay hybrid with natural chlorophyll dye on cotton fabric

López-Rodríguez, Daniel; Jordán-Núñez, Jorge; Micó-Vicent, B.; Belda, Antonio (Elsevier, 2024-12)

[EN] This work deals with the synthesis of hybrids formed by the natural dye chlorophyll and halloysite for their subsequent application in the textile field. Once the pigments have been synthesised, with 98% adsorption, ...
Printing with hydrotalcite hybrid nanoclays and dispersed, reactive, direct dyes

López-Rodríguez, Daniel; Micó-Vicent, B.; Jordán-Núñez, Jorge; Moncho-Santonja, María; Bou-Belda, Eva (Elsevier, 2023-02)

[EN] By using nanotechnologies it is possible to colour textile substrates with new printing techniques using dyes that have been discarded from non-exhausted dye baths. Hydrotalcite is clay with a high adsorbent capacity ...
Segmental Poly(urethane-urea) elastomers based on polycaporlactone: structure and porperties

May Hernandez, Luis Humberto; Hernandez Sanchez, Fernando; Gómez Ribelles, José Luís; Sabater i Serra, Roser (Wiley, 2011)

A series of segmented poly(urethane-urea) polymers have been synthesized varying the hard segments content, based on the combination of polycaprolactone diol and aliphatic diisocyanate (Bis(4-isocyanatocyclohexyl)methane), ...
Synthesis and characterisation of hybrids composed of calcined hydrotalcite and residual textile dyes

López-Rodríguez, Daniel; Jordán-Núñez, Jorge; Micó-Vicent, B.; Llinares Llopis, Raúl; Moncho-Santonja, María (Elsevier, 2023-11-03)

[EN] There is growing concern about the health of our planet, which has led to a search for meth-ods to purify and recover the pollutant materials that are released into the environment.Among all industries, the dyeing ...
Tratamiento de los tejidos de algodón con ácidos policarboxílicos

Bou-Belda, Eva; Monllor Pérez, Pablo; Bonet Aracil, María Angeles; Gisbert Paya, Jaime; Montava Seguí, Ignacio José (Asociación Española de Químicos y Coloristas Textiles (AEQCT), 2014)

[EN] Some polycarboxilic acids at different concentrations (maleic acid,citric acid, succinic acid, 1,2,3,4 butanetetracarboxylic acid) have been used togehter with a catalyser. Curing temperature has been evaluated. The ...
Uso de espectroscopía FTIR para la determinación de azúcares simples y ácidos en zumos y néctares de fruta

Torres Mesa, Carolina (Universitat Politècnica de València, 2016-10-14)

[ES] En el presente trabajo se ha utilizado la espectroscopia FTIR (Fourier-Transform Infrared Spectroscopy) para la determinación de azúcares simples y ácidos de diferentes zumos y néctares de fruta comerciales. Se trabajó ...