Tribology of composites produced with recycled GFRP waste

Abstract

Nowadays, is expected that for most materials to be environmentally friendly. Besides, waste from end-of-life products may be considered a secondary source of materials with an energetic advantage due to its high energy content. This paper deals with the study of friction and wear characteristics of Glass fibre-reinforced polymer (GFRP) composites with polyester/glass fiber (P/GF) waste as filler, replacing the widely used calcium carbonate (CaCO 3 ). Polyester composites based on two or three components, using a combination of polyester, CaCO 3 , GF, and GF waste, were produced. Pin-ondisc sliding wear test was performed using a polished stainless steel counterface. Roughness, surface energy, and hardness of the composites were characterized before the tests. The GF content (15, 25, 35, and 50 wt.%), the sliding velocity (0.021 and 0.042 m/s), and the normal load (1, 5, and 10 N) were varied. Based on the experimental results, it was observed that the friction coefficient and wear rate were influenced by material composition, surface roughness and energy, adhesive, and abrasive contact mechanisms. P/GF composites having P/GF waste presented enhanced performance considering friction and wear in relation to those with CaCO 3 in their composition.

Critical Factors for the Recycling of Different End-of-Life Materials: Wood Wastes, Automotive Shredded Residues, and Dismantled Wind Turbine Blades

“…The sample is almost homogeneous, with no significant differences amongst FTIR spectra collected on different CWD particles. FTIR analysis well demonstrates the lignocellulosic nature of all the samples, with the typical cellulose complex absorption band in the region 900–1200 cm −1 [17].…”

“…Amongst them, the use of wood [14,15,16] and FRP as fillers in polymer composites [17,18], and the reprocessing of polymer fractions from ELV have been widely investigated [19].…”

Composite Finishing for Reuse

“…Only a better understanding of the relationships between the processing, the formulations and the properties of GFRPs filled with recycled composites can promote the actual reuse of composite wastes. For example, a lower level of hardness and therefore a higher wear rate was observed for composites only filled with mechanically recycled GFRPs and an increase of wear resistance was obtained with the introduction of virgin glass fibers together with recycled GFRPs [10].…”

Influence on mechanical properties with the addition of limestone powder in polyester/fiberglass composite

“…2 Research shows the use of wastes to minimize environmental impacts and the study of their influence on the properties of other materials. [3][4][5] According to, 6 granite is a highly used aggregate in construction, and its processing generates large amounts of residual powder, which can replace cement in concrete production. According to the study, the author shows that the correct utilization of granite powder as a partial substitute for cement can minimize environmental degradation and help in the economic industry of this aggregate.…”