Ford osade nimestik mudel A ja AA

kuv., 14 x 22 cm

Directorio parroquial, práctica de concursos y de curas, dividese en tres libros

UANL

La didáctica de la literatura en las clases de ELE : propuesta de un curso de literatura renacentista y barroca para el nivel C1.

Memoria de máster (Universidad Rovira i Virgili, 2011). Incluye anexos. Resumen basado en el de la publicación

Visoelastic studies on thermoplastic polyurethane nanocomposites using a nano-hardness tester

The viscoelastic behaviour of a range of polyurethane thermoplastic elastomer montmorillonite nanocomposites has been studied using a nanohardness tester. For softer Shore hardness 80A materials, the introduction of the organo-clay increased the creep strain obtained while the nano-indentor was held at constant load. The increase in creep strain was greatest for materials containing an organo-clay modified with a more hydrophilic quaternary alkylammonium surfactant and with higher loadings of the hydrophilic organo-clay. This suggested the effect might be due to a plasticising effect of the excess surfactant. For the harder Shore hardness 55D materials, the addition of the organo-clays produced only a small decrease in the creep strain, probably due to the interconnected hard domains in this material.