Tribological behaviour of green wood-based unrecycled and recycled polypropylene composites

Jan, P.; Matkovič, S.; Bek, Marko; Perše, Lidija Slemenik; Kalin, Mitjan

doi:10.1016/j.wear.2023.204826

Cited by 8 publications

(3 citation statements)

References 27 publications

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“…This is explained by the higher compatibility of recycled PP with the wood fibers. However, other authors 36–39 studied PP/short natural fibers composites made with a virgin or recycled matrix and found proportionally comparable mechanical and physical properties between matrices.…”

Section: Introductionmentioning

confidence: 95%

How does the use of a recycled polypropylene matrix influence the performance of flax/polypropylene composites compared to a virgin matrix?

et al. 2023

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When manufacturing unidirectional flax/thermoplastic composites by thermocompression, the intrinsic characteristics of the matrix can potentially influence the properties of the composite. The objective of this study is to determine the impact of recycled matrix on the performance of flax/MAPP/PP composite. In this work, three PP matrices, one virgin and two recycled, were used in the manufacture of flax/MAPP/PP composites. By a multi‐scale analysis of the three PP matrices, their characteristics influencing the quality of the composite could be identified. It appears that the length of the polymer chains changes the quality of the interface as a short chain length leads to poor entanglement of PP with MAPP. Additionally, high viscosity lowered dispersion of fiber bundles, however it could be corrected by modifying the process pressure. Finally, the presence of a small amount of PE, as is common in recycled PP, has no significant effect on the mechanical properties of composites.

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Section: Introductionmentioning

confidence: 95%

How does the use of a recycled polypropylene matrix influence the performance of flax/polypropylene composites compared to a virgin matrix?

et al. 2023

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“…Common R-PP modification methods mainly relied on physical methods [8][9][10]. Jones et al reported that the R-PPs have lower crystallinity and that the mechanical and thermal properties deteriorate compared to the original PP, but their elongation at the break increases, which is due to the plasticity effect of low-molecular-weight segments [11].…”

Section: Introductionmentioning

confidence: 99%

Carbon Fiber Reinforced Recycled Polypropylene/Polyolefin Elastomer Composites with High Mechanical Properties

Wei,

Abdurexit,

Jamal

et al. 2024

Polymers

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The treatment of waste plastics has gradually become a hot topic in the current scientific community. In response to the needs for high-impact performance R-PP-based composites, carbon fiber (CF)-reinforced polyolefin elastomer (POE)/recycled polypropylene (R-PP) composite (CF/POE/R-PP) was prepared by the mechanical blending method, and its mechanical and thermal properties were systematically studied. It was found that the CF could effectively improve the bending and notch impact strength as well as enhance the thermal stability of POE/R-PP. Furthermore, a stable and dispersed composite interface formed by the combination of maleic anhydride-grafted polypropylene (PP-g-MAH) with the surface of CF and the fusion alkyl chains in R-PP and POE further enhanced the CF’s reinforcing effect. As a result, the addition of 9 wt.% CF successfully improved the heat resistance of the composite material, and the residual carbon content increased by 97.84% after sintering. The composite toughening of POE and CF effectively improved the impact strength of the composite material, with a maximum increase of over 1000%. This study ultimately resulted in a high-impact-resistant composite material.

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“…), and stem fibers (bamboo, rice, grass, corn, wheat, etc.) [12][13][14][15][16][17][18][19] Composites made from these natural fibers are also called green composites. Many studies have been done on green composites in the literature [20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Usability of Pine Sawdust and Cotton Together as Filler in Recycled Polypropylene Composites

İlyas Kartal,

Hilal Selimoğlu

2024

IJCESEN

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The use of natural fillers in polymers is a common method used to improve the properties of polymers. Natural fillers can be of plant or animal origin and provide several advantages over polymers. Although natural fillers are mostly used to reduce costs, they also affect other thermal, mechanical and physical properties. The use of natural fillers in polymers is a way to develop a sustainable and environmentally friendly material. Natural fillers are derived from renewable resources and their production requires less energy and resources than the production of synthetic fillers. Wood sawdust is a waste material that occurs extensively in the wood processing industry. Its easy-to-apply nature makes it an ideal choice for a variety of applications. In this study, waste pine wood sawdust was used as filler in the composite. Along with sawdust, waste cotton was also added to the composite. Recycled Polypropylene was preferred as the matrix material. Composite samples were prepared with extrusion and injection molding methods. Melt flow rate (MFI),density, Izod impact strength tests of the samples were performed. Scanning electron microscopy (SEM) images taken from the broken surfaces were analyzed. As a result of the study, it was evaluated that pine sawdust and waste cotton would be used in polypropylene-based composite applications.

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Tribological behaviour of green wood-based unrecycled and recycled polypropylene composites

Cited by 8 publications

References 27 publications

How does the use of a recycled polypropylene matrix influence the performance of flax/polypropylene composites compared to a virgin matrix?

How does the use of a recycled polypropylene matrix influence the performance of flax/polypropylene composites compared to a virgin matrix?

Carbon Fiber Reinforced Recycled Polypropylene/Polyolefin Elastomer Composites with High Mechanical Properties

Usability of Pine Sawdust and Cotton Together as Filler in Recycled Polypropylene Composites

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