1Universidad de A Coruña, Escuela Politécnica Superior, Departamento de Matemáticas, Ferrol, España. Profesor titular. Email: jtarrio@udc.es
2Universidad de A Coruña, Escuela Politécnica Superior, Departamento de Matemáticas, Ferrol, España. Profesor titular. Email: salva@udc.es
El principal objeto de este trabajo ha sido el empleo de una nueva técnica que aúna el análisis funcional y el diseño de experimentos: ANOVA funcional para un factor tratamiento. Mediante esta herramienta se ha medido la influencia que tiene la adición de una mezcla de nano y micro partículas de humo de sílice, subproducto de la industria del silicio, en la degradación térmica de una resina epoxi. Para tal fin se ha realizado un diseño de experimentos con un factor tratamiento (cantidad de humo de sílice) a tres niveles diferentes. Los datos se han obtenido mediante el empleo del Análisis Termogravimétrico (TG), dando como resultado cinco curvas o trayectorias de degradación por nivel. El ANOVA funcional aprovecha toda la información de cada curva o dato funcional.
El empleo del ANOVA funcional a partir de los datos TG ha dado como resultado que la cantidad de humo de sílice influye significativamente en la estabilidad térmica del compuesto y de la resina epoxi involucrada en cada muestra. Estos hechos pueden ser un indicio de la interacción entre la fase orgánica e inorgánica del material.
Palabras clave: análisis de datos funcionales, ANOVA, diseño de experimentos.
The main purpose of this work has been the use of a new technique that combines the functional analysis and design of experiments: a one way functional ANOVA. Using this tool is intended to measure the influence of the addition of a mixture of nano and micro particles of silica fume, by-product of silicon industry, on the thermal degradation of epoxy resin. To achieve this, it has been performed a design of experiments with a treatment factor (amount of fumed silica) at three different levels. The data were obtained using thermogravimetric analysis (TG), resulting in five curves or degradation pathways by level. The functional ANOVA uses all information of each curve or functional data.
The use of functional ANOVA from TG data has resulted in the amount of silica fume significantly affect the thermal stability of the compound and the epoxy resin involved in each sample. These facts may be indicative of the interaction between the organic and the inorganic phase.
Key words: ANOVA, Experimental design, Functional data analysis.
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Este artículo se puede citar en LaTeX utilizando la siguiente referencia bibliográfica de BibTeX:
@ARTICLE{RCEv34n2a01,
AUTHOR = {Tarrío, Javier and Naya, Salvador},
TITLE = {{Influencia de la adición de nano y microsílice en la estabilidad térmica de una resina epoxi. Aplicaciones del ANOVA funcional}},
JOURNAL = {Revista Colombiana de Estadística}, ]]>
YEAR = {2011},
volume = {34},
number = {2},
pages = {211-230}
}