About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
17th Symposium on Green and Sustainable Technologies for Materials Manufacturing and Processing
|
| Presentation Title |
Foam Glass Production from Flat Glass Waste: Technical Assessment of Sodium Hydroxide as a Foaming Agent |
| Author(s) |
Evaldo Toniolo Kubaski, Robson Couto da Silva, Jamile Teixeira Manoel, Gustavo Lourenço Gabriel |
| On-Site Speaker (Planned) |
Evaldo Toniolo Kubaski |
| Abstract Scope |
Foam glass boards produced from recycled flat glass waste present an eco-friendly and technically viable solution for thermal insulation. This research investigates the use of sodium hydroxide (NaOH) as an alternative foaming agent and its influence on the microstructure, sintering behavior, and environmental performance of foam glass. NaOH promotes foaming through a steam-releasing mechanism during sintering, eliminating the emission of greenhouse gases. A cradle-to-gate Life Cycle Assessment (LCA) was conducted to compare foam glass produced with NaOH to variants using carbon black, silicon carbide, and dolomite. Impact categories included global warming potential, acidification, and human toxicity. NaOH-based foams demonstrated the lowest CO<sub>2</sub> emissions and enabled sintering at lower temperatures. The results confirm the technical effectiveness and environmental advantages of using NaOH in foam glass production from flat glass waste, offering insights for sustainable materials processing and circular economy practices. |