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Summary A comprehensive life cycle assessment of panels for aircraft interiors was conducted, including both a conventional glass fiber-reinforced panel and different novel sustainable panels. The conventional panel is made of a glass fiber-reinforced thermoset composite with halogenated flame retardant, whilst the sustainable panels are made of renewable or recyclable polymers, natural fiber reinforcements and non-halogenated flame retardants.Four different sustainable panels were investigated: a geopolymer based panel, a linseed oilbased biopolymer panel, and two thermoplastic panels, one with polypropylene (PP) and another with polylactic acid (PLA). All the sustainable panels were developed to fulfil fire resistance requirements and to be lighter than the conventional panels in order to reduce fuel consumption and air pollutant emissions from the aircraft. The environmental impacts associated with energy consumption and air emissions were assessed, as well as other

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