QUIRINO, L. B.; http://lattes.cnpq.br/2017193309708624; QUIRINO, Louise Brasileiro.
Resumen:
Glassy residues are 100% recyclable. Its reuse reduces environmental impact,
contributes to the diversification of manufactured products and fall production’s
costs. This study aimed the recycling, on craft scale, of waste glass from vitreous
residues from the urban disposal of Campina Grande/PB city, targeting the
sustainability of a collectors group. Flat and hollow glasses were characterized by
chemical analysis, TG and DTA, and subjected to different temperature profiles in
order to obtain new products. The chemical composition of glasses employed
showed that they are sodium-calcium-silicates. The DTA curve showed two small
endothermic bands in the 700 - 750ºC range and between 800 and 1000°C which is
characteristic of glass fusion. A negligible loss of weight (<1%) was observed on TG
which confirms the high thermal stability of flat glass. Tests indicate that the ideal
temperature for fusion was 800ºC. From the studies, it was possible to transfer the
acquired knowledge to the residue collectors team of the Unidade de
Beneficiamento de Materiais Vítreos through workshops in drawing, painting, molds
preparation, beneficiation, pigmentation and burning of the working material.