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Synthesis and characterization of waterborne polyurethane and polyurethane-urea towards eco-friendly materials by cellulose nanocrystals and plant extracts incorporation
(2017-02-23)
In this work, environmentally friendly anionic waterborne polyurethane and polyurethane-urea dispersions were synthesized in order to prepare films by casting. The effect of molar composition and synthesis route were ...
Gestión de microrredes eléctricas basadas en microturbinas de gas
(2017-07-26)
Además de utilizarse para dar suministro eléctrico a zonas aisladas, la generación distribuida es una manera de eliminar las pérdidas producidas en la red de transporte y distribución. La generación distribuida mediante ...
Polyurethane Wood Adhesives Prepared from Modified Polysaccharides
(MDPI, 2022-01-28)
This study investigated the performance of polyurethane adhesives prepared with various combinations of wheat starch that had been modified by isophorone diisocyanate (MS), two polyol types (1,3-propanediol (PD) and glycerol ...
Advances in Waterborne Polyurethane and Polyurethane-Urea Dispersions and Their Eco-friendly Derivatives: A Review
(MDPI, 2021-01-27)
Polyurethanes and polyurethane-ureas, particularly their water-based dispersions, have gained relevance as an extremely versatile area based on environmentally friendly approaches. The evolution of their synthesis methods, ...
Development of an electrical resistance-based corrosion monitoring system for offshore applications.
(2022-04-28)
El objetivo principal de la tesis es el desarrollo de un sistema de monitorización remota de la corrosión para estructuras off-shore (eólica y oil & gas). Mediante este sistema se pretende medir en forma remota la velocidad ...
3D printing of customized all-starch tablets with combined release kinetics
(Elsevier, 2022-06-25)
[EN] Starch-based tablets with tailored releases were prepared by 3D printing using a hydrophobic drug. The importance of the origin of the excipient in the inks and tablets was analyzed. Besides, the effect of the geometry ...
Development and application of thermal desorption techniques for the measurement of PAHs in ambient air
(2017-02-17)
Entre todos los contaminantes, los hidrocarburos aromáticos policíclicos (HAPs) han sido objeto de uninterés creciente en los últimos años. Debido a sus características (propiedades carcinogénicas,mutagénicas e inmunotóxicas) ...
Copolímeros de poliuretano del tipo poli[(hexametilen-carbamato- butanodiol)-co-(carbonato-co-éster)]
(Universidad Industrial de Santander, 2016-12)
Resumen Los poliuretanos segmentados termoplástico elastoméricos (PUSTE) comprenden una familia de materiales muy versátiles debido a su potencial empleo en diversos campos tales como biomedicina. Entre los PUSTE los ...
Biobased polyurethanes and nanocomposites. From structure/properties relationship to shape-memory behavior
(2017-05-26)
This work deals with the increase of the renewability of different porous and solid (thermoplastic and crosslinked) polyurethanes and bionanocomposites, by the incorporation of different reactants and nanoentities from ...
Polyhydroxybutyrate (PHB) produced from red grape pomace: Effect of purification processes on structural, thermal and antioxidant properties.
(Elsevier, 2022-09)
Red grape pomace was used as a source for poly(3-hydroxybutyrate) (PHB) production, which was then subject to a range of purification processes. The different PHB biopolymers were characterized for chemical structure, ...