MARIANA DO NASCIMENTO SARTORI
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Resumo IPEN-doc 30170 Reuse of textile waste with nano reinforcement for the development of materials incorporated with nanocomposites2023 - SARTORI, MARIANA do N.; CASTRO, DIONE P. de; SILVA, LEONARDO G. de A. eThe use of plastics in Brazil and the world has shown a growing demand due to their qualities, ease of obtaining, and low cost, and, consequently, produces an increase of these plastics in solid urban waste. The destination of these materials, especially in Brazil, is summarized in sending to landfills, incineration and, mechanical and chemical recycling. This study evaluates the possibility of using polyamide textile waste with elastane discarded by the textile industry, as reinforcement for the development of a polymer-clay composite, on a nanometric scale, and develop a recycling route for these materials. In that, the nanocomposite technology adds value to this material. This work used polyamides from textile waste of the industry. These materials were first processed in a compacting machine. Afterward the composites with 1, 2, and 3% in mass of Verde Clara clay/polyamide were prepared in a double screw extruder. The composites were characterized by techniques of X-ray diffraction (XRD), tensile, flexural, impact tests and thermogravimetric analysis (TGA). Results obtained were compared with the properties of the standard samples. As a conclusion of this study, it can be stated that the polyamide textile scraps with elastane can be reused forming nanocomposites with Verde Clara clay. Verde Clara clay in the proportion of 1% already confers gains in the properties of these nanocomposites.Capítulo IPEN-doc 28650 The incorporation of the Light Green clay in the textile polyamide residues2021 - SARTORI, M.N.; CASTRO, D.P.; VALENZUELA-DIAZ, F.R.; SILVA, L.G.A.The aim of this work is to evaluate the possibility to use textile residues of polyamide with elastane that are discarded by the industry as a matrix of a new polymer-clay composite material, evaluated on a manometric scale, and to propose a way of recycling for these materials. At the same time, with nanocomposite technology, value is added to this material. In this work, polyamide of textile residues from industrywas used. These materials were first processed in a compacter machine. Composites at 1, 2, and 3% by weight of Light Green clay/polyamide were prepared by double screw extrusion. The properties of the composite were characterized by X-ray diffraction (XRD), tensile, flexural, impact tests, and thermogravimetric analysis (TGA). Results obtained were compared with the neat textile polyamide properties. It was concluded that it is feasible to recycle the textile residues of polyamide, and that the addition of clay, at the doses studied in this work, could lead to the obtaining of composite materials with better mechanical than untreated ones.