Pegado de láminas elastómero Nitrilo/Retamo Liso: Empleo de adhesivos ecológicos con silano y halógeno//Bonding of Sheets nitrile elastomer/Retamo Liso: Use of ecological adhesives with silane and halogen

Authors

  • Oscar Buitrago-Suescún Universidad Militar Nueva Granada. Facultad de Ingeniería. Bogotá

Abstract

Se estudió la junta de láminas de compuesto de caucho nitrilo butadieno y harina de Retamo liso (Teline Monspessulana) mercerizada en proporción de 50 phr con el objetivo de probar alternativas ecológicas de adhesión. Fueron utilizados dos adhesivos, catalogados como ecológicos: Poliuretano y cloropreno ambos en base agua. En los mecanismos utilizados para juntar las láminas de elastómero nitrilo/fibra de retamo liso con el adhesivo se probaron primers de adhesión:3-aminopropiltrietoxisilano y viniltrimetoxisilano y primer clorados. Para estudiar la fuerza de adhesión de las juntas de las láminas se realizaron pruebas de pelado. Luego se caracterizaron las muestras con espectroscopia infrarroja con el fin de establecer el mecanismo con el que se adhirieron las láminas. Los análisis permiten establecer que el uso de silanoviniltrimetoxisilano como primer de adhesión le confirió a la unión de elastómero de nitrilo con fibra de retamo liso y poliuretano como adhesivo el mayor valor de resistencia al pelado.

Palabras claves: teline monspessulana, NBR, primers, poliuretano base agua, cloropreno base agua.
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Abstract

Bonded joint of composite sheets of nitrile butadiene rubber with Teline Monspessulana flour mercerized in proportion of 50 phr was studied, with the objective of testing ecological alternatives of adhesion. Two adhesives were used: water-based polyurethane and chloroprene dispersions, known as environmentally friendly. In the mechanisms used to bonding joint substrates of composites rubber/flour with adhesive, three surface treatments were tested: 3-aminopropyltriethoxysilane, vinyltrimethoxysilane and chlorinate based primers. To study the adhesion strength of the bonded joints, peel tests were performed.The specimens were then characterized by infrared spectroscopy FT-IR in order to establish the mechanism by which the adhesion of substrates. Analyses showed that the based-vinyltrimethoxysilane primer presented a better performance in adhesive bonding of polyurethane on the surface of the substrates, which was observed in the highest values of peel strength.

Key words: teline monspessulana, NBR, primers, water-based polyurethane, water-based chloroprene.

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How to Cite

1.
Buitrago-Suescún O. Pegado de láminas elastómero Nitrilo/Retamo Liso: Empleo de adhesivos ecológicos con silano y halógeno//Bonding of Sheets nitrile elastomer/Retamo Liso: Use of ecological adhesives with silane and halogen. Ing. Mec. [Internet]. 2017 Jan. 4 [cited 2025 Sep. 13];20(1):1-5. Available from: https://ingenieriamecanica.cujae.edu.cu/index.php/revistaim/article/view/550

Issue

Vol. 20 No. 1 (2017): enero-abril

Section

Original article

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