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Title

Recycling of glass fibers from fiberglass polyester waste composite for manufacture glass-ceramic materials

AuthorsLópez Gómez, Félix Antonio ; Martín, M. I.; García-Díaz, Irene; Rodríguez, O.; Alguacil, Francisco José; Romero, M.
KeywordsWaste Composite
Valorisation
Glass-Ceramic
Gasification
Glass Fiber
Thermolysis
Issue Date2012
PublisherScientific Research Publishing
CitationJournal of Environmental Protection 3: 740-747 (2012)
AbstractThis work presents the feasibility of reusing a glass fiber resulting from the thermolysis and gasification of waste composites to obtain glass-ceramic tiles. Polyester fiberglass (PFG) waste was treated at 550˚C for 3 h in a 9.6 dm3 thermolytic reactor. This process yielded an oil (≈24 wt%), a gas (≈8 wt%) and a solid residue (≈68 wt%). After the polymer has been removed, the solid residue is heated in air to oxidize residual char and remove surface contamination. The cleaning fibers were converted into glass-ceramic tile. A mixture consisting of 95 wt% of this solid residue and 5% Na2O was melted at 1450˚C to obtain a glass frit. Powder glass samples (<63 μm) was then sintered and crystallized at 1013˚C, leading to the formation of wollastonite-plagioclase glass-ceramic materials for architectural applications. Thermal stability and crystallization mechanism have been studied by differential thermal analysis. Mineralogy analyses of the glass-ceramic materials were carried out using X-ray Diffraction
URIhttp://hdl.handle.net/10261/112637
DOI10.4236/jep.2012.38088
Identifiersdoi: 10.4236/jep.2012.38088
issn: 2152-2197
Appears in Collections:(CENIM) Artículos
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