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Ingeniare. Revista chilena de ingeniería

versión On-line ISSN 0718-3305

Resumen

BUITRAGO SUESCUN, Oscar; DELGADO TOBON, Emilio  y  MONROY RAMIREZ, Mario. Use of water-based polyurethane dispersions in adhesive joint of SBR 1502/Natural flour with silanes as primers. Ingeniare. Rev. chil. ing. [online]. 2018, vol.26, n.3, pp.459-465. ISSN 0718-3305.  http://dx.doi.org/10.4067/S0718-33052018000300459.

The procedure for the adherence of sheets made with 1502 styrene butadiene rubber 1502 and natural flour was studied using as water-based polyurethane dispersion which is eco-friendly. Teline monspessulana flour was previously mercerized and mixed in a polymer matrix of rubber SBR 1502 and B50% of flour. The specimens were subjected to mechanical abrasion, after they were surface treated by via chemical with chlorine base, Vinyltrimethoxysilane and 3-(Aminopropyl) triethoxysilane primers. The adhesive joints were manufactured and then tested using the peel adhesion in order to determine the best performance. The interface between the substrates was analised by infrared spectroscopy FT-IR and scanning electron microscopy. The results indicated that the silane grafting on the surface of natural fiber achieved cohesion of the adhesive with the substrate.

Palabras clave : Teline Monspessulana; SBR 1502; APTES; VTMS; ecological adhesive; water-based polyurethane.

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