Silica nanoparticles in high silica/alkali molar ratio solutions as fire-retardant impregnants for woods

Authors

  • Carlos A. Giudice,

    Corresponding author
    1. CIDEPINT (Centro de Investigación y Desarrollo en Tecnología de Pinturas), calle 52 e/121 y 122, (1900) La Plata, Argentina
    2. UTN (Universidad Tecnológica Nacional), calle 60 y 124, (1900) La Plata, Argentina
    • CIDEPINT (Centro de Investigación y Desarrollo en Tecnología de Pinturas), calle 52 e/121 y 122, (1900) La Plata, Argentina
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  • Andrea M. Pereyra

    1. CIDEPINT (Centro de Investigación y Desarrollo en Tecnología de Pinturas), calle 52 e/121 y 122, (1900) La Plata, Argentina
    2. UTN (Universidad Tecnológica Nacional), calle 60 y 124, (1900) La Plata, Argentina
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Abstract

The objective of this paper is to know the fire performance of wooden panels (Pinus radiata) impregnated with silica nanoparticles added to silica/alkali colloidal solutions. Two series of impregnated panels were prepared with diverse penetrations and retentions (a) after drying/curing the impregnants at laboratory conditions until reaching constant weight and (b) after finishing this stage with prior distiller water immersion for seven days and a later air exposition for attaining moisture balance. Panels were tested in a limiting oxygen chamber and in a two-foot tunnel. Some results displayed a high fire-retardant efficiency. Copyright © 2009 John Wiley & Sons, Ltd.

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