La Unión Europea ha acordado un embargo petrolero contra Rusia en respuesta a la invasión de Ucrania. El embargo prohibirá las importaciones marítimas de petróleo ruso a la UE y pondrá fin a las entregas a través de oleoductos dentro de seis meses. Esta medida forma parte de un sexto paquete de sanciones de la UE destinadas a aumentar la presión económica sobre Moscú y privar al Kremlin de fondos para financiar su guerra.
Evaluation of curing behavior of tetra functional epoxy resin with methyl nad...IAEME Publication
Tetra-functional epoxy resin has been synthesized, starting from 4,4’-diaminodiphenylether and epichlorohydrin. The curing behavior of synthesized epoxy resin has been evaluated using methyl nadic anhydride (MNA) as a curing material. The obtained resin was characterized by FT-IR and 1HNMR spectroscopy. The curing behavior of epoxy resin with MNA has been studied using FT-IR and Differential scanning calorimetry (DSC) techniques. The thermal behavior of epoxy resin has been evaluated using Thermo gravimetric Analyzer (TGA) and DSC techniques. The DSC analysis of uncured resin with MNA showed the maximum rate of curing at 177 0C. The cured epoxy resin showed Tg at 197 0C. The TGA analysis of cured epoxy resin showed two step degradation, Tonset at 350 0C with char yield of 22% at 800 0C
Evaluation of curing behavior of tetra functional epoxy resin with methyl nad...IAEME Publication
Tetra-functional epoxy resin has been synthesized, starting from 4,4’-diaminodiphenylether and epichlorohydrin. The curing behavior of synthesized epoxy resin has been evaluated using methyl nadic anhydride (MNA) as a curing material. The obtained resin was characterized by FT-IR and 1HNMR spectroscopy. The curing behavior of epoxy resin with MNA has been studied using FT-IR and Differential scanning calorimetry (DSC) techniques. The thermal behavior of epoxy resin has been evaluated using Thermo gravimetric Analyzer (TGA) and DSC techniques. The DSC analysis of uncured resin with MNA showed the maximum rate of curing at 177 0C. The cured epoxy resin showed Tg at 197 0C. The TGA analysis of cured epoxy resin showed two step degradation, Tonset at 350 0C with char yield of 22% at 800 0C
HOY , DÍA MUNDIAL DE LA POESÍA , QUIERO CONTRIBUIR CON ESTE REGALITO PARA TOD@S MIS AMIG@S A LOS QUE LES GUSTA Y DISFRUTAN DE ESE BELLO ARTE HECHO POESÍA ...
HOY , DÍA MUNDIAL DE LA POESÍA , QUIERO CONTRIBUIR CON ESTE REGALITO PARA TOD@S MIS AMIG@S A LOS QUE LES GUSTA Y DISFRUTAN DE ESE BELLO ARTE HECHO POESÍA ...
Portafolio final comunicación y expresión ll - ivan alarcon .pptxivandavidalarconcata
Los muros paramétricos son una herramienta poderosa en el diseño arquitectónico que ofrece diversas ventajas, tanto en el proceso creativo como en la ejecución del proyecto.
