Comportamiento mecánico de mezclas de resina furanopoxídica con polisulfuros para su uso como adhesivos de alta resistencia. Acción de las cargas estáticas. // Mechanical behaviour of epoxi-modified furan polymer blends with polysulfyde for use as high st
Abstract
La modificación de polímeros furánicos con otros de diferentes propiedades ha sido una vía para lograr el mejoramiento de
estos impartiéndoles propiedades específicas. La incorporación de polisulfuros como tiokol caucho a la resina furfural-acetona
modificada con grupos epoxídicos es estudiada en base a ensayos estáticos observándose un incremento discreto sobre la
adhesividad de las mezclas y un aumento notable en el módulo elástico. Se estudió el comportamiento de estos adhesivos sobre
un grupo de substratos de uso estructural.
Palabras claves: resinas, pol isul furos, adhesivos de al ta resi st encia.
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Abstract
Modification of furan polymers with other ones having different behaviour has been an alternative to improve them developing
specific properties. Blends of polysulfide in the rubbery form with epoxi-modified furan resin are studied based on static tests.
It has been observed a small increase in adhesive strength and a higher elastic modulus. Four substrates commonly used in
structural parts were evaluated.
Key words: Resin, polysul fyde, high strength adhesive.
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