Avaliação da flamabilidade e dos resíduos de queima de tintas acrílicas à base d'água

• Autor(a) principal: Henrique, Angelo Abel Machado Pereira
• Data de Publicação: 2017
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da PUC_RS
• Texto Completo: http://tede2.pucrs.br/tede2/handle/tede/8118
• topic: Flamabilidade dos Materiais; Toxicidade; Emissões de Queima; Revestimentos e Tintas Acrílicas; Flammability of Materials; Toxicity; Burning Emissions; Coatings and Acrylic Paints; ENGENHARIAS

In this work, the sample-flame propagation indexes were simulated in laboratory, in detriment and in comparison to the generalized burning during the fires in internal environments. The respective chemical and physical properties of the paints, the emanated gases, were compared; evidencing its toxicities, toxicological thresholds and using the tests of horizontal burning and vertical burning. In the experimental part, the paint films were produced for later burning in a quartz chamber with the use of the electric furnace, from which the gases were collected, according to each thermal degradation orientation obtained by the TGA pallet, in order to analyze the toxicities in gas chromatography. In the results the different firing behaviors for each paint can be compared by virtue of its physico-chemical composition, together with its gas release rates in each temperature range.