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Título del libro: Air And Waste Management Association - International Conference On Thermal Treatment Technologies And Hazardous Waste Combustors 2014
Título del capítulo: Physicochemical study of the products of combustion and thermal shock on polymeric materials

Autores UNAM:
DELFINO ALVARO CAMPOS VILLANUEVA;

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Autores externos:

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Idioma:

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Año de publicación:
2014

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Palabras clave:

Additives; Calorimeters; Combustion; Combustors; Electron microscopes; Environmental impact; Flame research; Flame resistance; Flame retardants; Fractal dimension; Fractals; Functional materials; Furniture manufacture; Hazardous materials; Hazards; Heat treatment; Life cycle; Microorganisms; Mining; Multivariant analysis; Nanoparticles; Plastics; Polymers; Scanning electron microscopy; Thermal shock; Toy manufacture; Waste incineration; Waste management; Waste treatment; Anti-microbial protection; Antimicrobial; Life cycle analysis; Nanocompound; Physical and chemical properties; Polymeric nanocomposites; Southwest research institutes; UV resistance; Functionalized materials; Chemical analysis

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Resumen:

Currently many industries use functionalized nanomaterials in order to obtain better mechanical, thermodynamic and quantum properties in the manufacture of parts, furniture, toys, etc. However, there still are many unanswered questions about potential environmental impacts. The aim of the study is to analyze, by means of scanning with electron microscopy and transmission chemically and morphologically, the release particles of functionalized materials produced with polymeric nanocomposites to obtain more effective flame retardants, UV resistance and antimicrobial protection and thus, determine if the exposure to thermal shock or burning of the functional materials could release nanoparticles harmful to health. Finally, find if there is some statistic dependence between concentration and the morphology of the particles analyzed. Six samples were subjected to heat shock at the Center for Research in Advanced Materials SC (CIMAV) and three samples were burnt by a cone calorimeter in the Southwest Research Institute (SwRI) of San Antonio. Particles collected in the process through a MOUDI-110 collector, were characterized by electron microscopes, by photomicrographs and elemental analysis. The results were interpreted using statistical analysis to establish a correlation between the physical and chemical properties, determining if the nanoparticles released are significant. The relevant results were those in which the interest additives were released [ZnO, Ag or Mg (OH)2]. In thermal shock we find release of Zn and Mg. In both cases the morphological analysis, shown that the lacunarity, fractal dimension and circularity are very similar in heat shock as combustion. However, the Feret's diameter for thermal shock doubles the size of the particles in the combustion test. Combustion particles in cone calorimeter test, interest additive was not released [Mg (OH)2].

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Entidades citadas de la UNAM:

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Fuente:


ISBN:
9781510800236
Editorial:
Air and Waste Management Association

Tipo de producto:
Conference Paper