Glass fibre reinforced composites are used in many branches of industry. Polyester-glass laminates serve as
structural material in shipbuilding (e.g. hulls of units, superstructures), in railways, automotive (e.g. elements of car
bodies and interior fittings, roofs of wagons, cisterns) or aviation (e.g. aircraft fuselages, fuel tanks, completion beaks
and ballasts). Factors affecting the increase of their use include low specific gravity, optimal strength properties,
corrosion resistance. This is associated with a large amount of post-production and post-use waste. The recycling
problem of these materials remains unresolved. The article presents the technology of processing polyester-glass
waste in order to obtain a recycle with a specific granulation. The selected technology for the production of layered
composites with reinforcement in the form of recycle is described. For testing, granulation was selected for 1.2 and 3
mm, as well as content: 0%, 10%, 20% and 30%. Using the water-cutting method, samples were prepared according
to the standard static tensile test for plastics. The tests were carried out using a universal testing machine as well as
an extensometer for samples with granulation of 1.2 mm and 3 mm, as well as the selected recycled percentage.
Obtained results of the research indicated that granulation as well as content affects the strength properties of
composites. As the granulation increases, at the same content, the material gains less deformation. The increase in the
amount of the recycle reduces the strength properties of the material, and also due to the decrease in the deformation
value - the material becomes brittle.
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