FRLP - I+D+i - CENTROS - CITEMA - CAPÍTULOS DE LIBROS

Permanent URI for this collectionhttp://48.217.138.120/handle/20.500.12272/1749

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    Flame retardant systems based on alkoxysilanes for wood protection
    (Intech, 2017) Giúdice, Carlos Alberto; Canosa, Guadalupe
    The aim of this study was to formulate, develop, and determine the performance of flame-retardant systems for wood protection. Flame-retardant systems involve wood impregnation and intumescent coating application. The impregnation was made in two retention levels using silanes of low and high hydrophobicity (methyltriethoxysilane and n-octyltriethoxysilane, respectively); these silanes were conducted to polymerize by sol-gel process in wood pores. The intumescent coatings were formulated with a polymeric binder (hydroxy-functional acrylic resin) modified with n-octadecyltriethox- ysilane in two w/w ratios to combine the individual characteristics of each film-forming material. In this research, Pinus radiata panels were selected to study the performance of quoted flame-retardant systems. The results indicated excellent flame-retardant performance of some studied systems in two foot tunnel, in oxygen index cabin, and in horizontal-vertical chamber.
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    Introductory chapter : Protection of materials
    (Intech, 2017) Canosa, Guadalupe; Giúdice, Carlos Alberto
    The science and technology of materials have as objective provided access to specific knowl- edge in this field and besides generated matters of interest for the development of original researches leading to new materials and, as a consequence, to proper protection methods to achieve high economic impact. Since iron and steels constitute a group of widely used materials in civil and industrial construction, this chapter describes firstly the fundamental concepts of metal corrosion and the most frequent failures originating on service. Besides, in this chapter, it was considered of interest to include aspects inherent to the physicochemistry of fire and its mechanism of spreading because of the significant human and material losses produced year after year by action of the fire. It is appropriate to mention that the different chapters of this book describe innovative methods of surface treatment to control the kinetics of metallic corrosion and the action of fire on several materials.
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    Evaluación del comportamiento al fuego de la madera de pino ponderosa impregnada con 8 soluciones potencialmente ignífugas
    (INTA, 2017-03-01) Tonello, María Laura; Keil, Gabriel; Maly, Laura; Canosa, Guadalupe; Giúdice, Carlos Alberto
    El fuego es considerado uno de los principales agentes de destrucción de objetos fabricados parcial o totalmente con madera. La madera por ser un material combustible, crea siempre el “riesgo de incendio”. Esto constituye una de las limitaciones a su mayor uso en la construcción. La protección de los materiales leñosos frente al fuego está limitada a un efecto retardante, ya que ninguna sustancia química puede transformar la madera en material incombustible dentro de los márgenes de tratamiento económico. La acción de los retardantes reduce en el tiempo la pérdida de peso que sufre la madera por carbonización de la masa leñosa, al mismo tiempo que puede limitar la tendencia a la permanencia de la llama y/o brasa que aparece en la madera encendida.