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- 저자 : Patrice Cousin (검색결과 1 건)
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Mechanical & Interfacial Properties of Bamboo Lamella-PP Composites – Effect of Lamella Treatment
Pierre Ovlaque,Marie Bayart,Patrice Cousin,Julien Durand,Grégoire Mercusot,Saïd Elkoun,Mathieu Robert 한국섬유공학회 2020 Fibers and polymers Vol.21 No.5
This study aims at measuring the interfacial properties of natural fibers in polypropylene composites by the meanof direct methods of characterization. Bamboo lamellae (BL) and polypropylene (PP) were used to produce laminatedcomposites with continuous and homogenous interfaces. This research also focuses on the effect of maleic anhydride-graftedPP (MAPP) on the improvement of the PP/BL composites interfacial properties, which were measured by the means of thedouble cantilever beam (DCB), end-notched flexure (ENF) and short beam shear (SBS) methods. Flexural properties of thedifferent composites were also determined using the three-point bending and single cantilever modes by dynamic mechanicalanalysis (DMA). The retention rates (Rr) of mechanical and interfacial properties were calculated on samples aged in hotwater. Results reveal that MAPP induced a significant increase in flexural properties. This is undeniably related to anenhancement of affinity between PP and BL that was confirmed by DCB, ENF and SBS tests results. It was also highlightedthat MAPP tends to limit degradation of the composite interfacial properties with,for instance, a critical fracture toughness(mode I) Rr of 97 % for MAPP coated composites against 56 % for the untreated composites.
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