GLASS FOAM PRODUCED FROM GLASS BOTTLE AND TOBACCO RESIDUES FOR THERMAL INSULATION

Reference	Presenter	Authors (Institution)	Abstract
17-072	Adriane Lawisch Rodriguez	dos Santos, P.M.(Universidade de Santa Cruz do Sul); da Silva, R.M.(Universidade de Santa Cruz do Sul); Priebbnow, A.V.(Universidade de Santa Cruz do Sul); Arcaro, S.(Universidade Federal do Rio Grande do Sul); Rodriguez Lopez, D.A.(Universidade de Santa Cruz do Sul); Rodriguez, A.L.(Universidade de Santa Cruz do Sul);	Thermal insulation is an important contribution for building energy savings, such as loss control and heat gain through walls. Glass foams can be an excellent alternative for application as thermal insulation due to their low density, low thermal conductivity, dimensional stability. In addition, glass foams are non-toxicity, non-flammable and chemically inert having higher operating temperatures than conventional insulation materials. Glass foams represent an interesting destination for glass waste from the economic and environmental point of view since the glass used for its manufacture can be from discard. In addition, the development of studies aimed aggregation of agroindustrial waste as a foaming agent in glass matrix can be an alternative for reducing the use of raw materials and extend the life cycles of the elements in antroposphere, reducing the need of its extraction from the environment and the final costs of industrial sectors. In this work, bottle glass powders (GP) and tobacco (T), which is the residue from oil extraction, were prepared in different formulations (100% GP, 95% GP - 5% T w/w, 85% GP - 15% T w/w, 70% GP - 30% T w/w and 55% GP - 45% T w/w) to obtain glass foams. The bottle glasses were milled in a ball milling, and tobacco was kindly provided by regional industry. The formulated compositions were homogenized, uniaxially compacted at 40 MPa and heating at 850 °C and 900 °C for 60 minutes (rate: 10 °C min-1) to investigate the effects of tobacco addition and the heating temperature in pore formation and thermal and mechanical properties of the glass foams produced. The results show that the glass foams obtained are promising materials for applications where thermal insulation is desired through a suitable combination of thermal conductivity, porosity and mechanical strength generating advantageous properties for applications in sustainable constructions and industrial energy efficiency.
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