Abstract:The aim of this work is to study the valorization of regenerated low density polyethylene (rLDPE) by blending with PVC in the presence of chlorinated polyethylene (CPE) as compatibilizer. For this purpose, four rLDPE samples coming from neat or dirty wastes were used. They were obtained after milling, washing, and extrusion in a conventional recycling plant. They were first characterized in terms of physicochemical (density, melt flow index, water absorption, and level of oxidation by Fourier transform infrare… Show more
“…The improvements are due to the efficiency of the fiber as reinforcement. 21 This result confirms that jute fiber has superior mechanical properties, 11,21–23,25,26,28 good interactions and interfacial bonding with the matrix. 29–31 Figure 6.Effect of jute fiber loading on stress at break, elongation at break and Young's modulus of LDPE/PLA/PE-g-GMA/jute fiber composites.…”
Section: Resultssupporting
confidence: 65%
“…3,23 This fact may be related to the nature of jute fibers which present lower impact strength than polymer blend matrix 7,21,24,25 and possess moderately high stiffness. 28 Furthermore, the impact strength is reduced by the embrittlement of composites. 24 The impact performances of fiber-reinforced composites depend on many factors.…”
Section: Resultsmentioning
confidence: 99%
“…The tensile test was carried out in the following conditions: For LDPE/PLA blends, it was conducted according to the standard ISO 527-2 with a Zwick/Roell testing machine at a crosshead speed of 150 mm/min. 28,29 The dimensions of the samples were 150 × 10×4 mm 3 .For LDPE/PLA compatibilizers and LDPE/PLA composites, the test was performed according to the standard NF T51-034 using an Instron Calibration Lab, Instron 33R4469 testing machine, respectively, at a crosshead speed of 20 mm/min and 10 mm/min. The dimensions of the samples were 75 × 4×2 mm 3 .…”
Section: Methodsmentioning
confidence: 99%
“…For LDPE/PLA blends, it was conducted according to the standard ISO 527-2 with a Zwick/Roell testing machine at a crosshead speed of 150 mm/min. 28,29 The dimensions of the samples were 150 × 10×4 mm 3 .…”
This work deals with the valorization of waste jute fibers coming from carpet industries in the development of biocomposites based on blends of low-density polyethylene and poly lactic acid. First, low-density polyethylene /poly lactic acid blends of variable composition (100/0, 80/20, 50/50, 20/80, 0/100) were prepared. Their tensile properties and morphology were characterized. Tensile strength of the blends was lower compared to the pure poly lactic acid and the elongation decreased significantly with increasing poly lactic acid which is due to poor adhesion as evidenced by SEM analysis. These results indicated the incompatibility between low-density polyethylene and poly lactic acid. Thus, the aim of the second step was to find a relevant compatibilizer. For that purpose, five functionalized polyolefins were tested: poly(ethylene-co-glycidyl methacrylate) (8% glycidyl methacrylate) (PE-g-GMA), poly(propylene-co-ethylene-grafted maleic anhydride) (1.4% maleic anhydride) (PP-g-MA), poly(ethylene-co-acrylic-ester-co-glycidyl methacrylate) (E-AE-GMA) (8% glycidyl methacrylate, 24% methyl acrylate), polypropylene-grafted maleic anhydride (PP-g-MA) (high percentage maleic anhydride), poly(ethylene-co-butylacrylate-co-maleic anhydride) (E-BA-MAH) (6% butyl acrylate, 3% maleic anhydride). PE-g-GMA exhibited the best results in terms of tensile properties and morphology. Low-density polyethylene/poly lactic acid /PE-g-GMA (20/80/5) reinforced with 0-40 wt% jute fibers were prepared and characterized (tensile properties, charpy impact strength, morphology and thermal properties) in the last step. The results showed an improvement of tensile properties and a satisfactory interfacial adhesion between jute fibers and polymer blends. Furthermore, thermal stability was affected by the incorporation of 10% of jute fiber but varied very little with the increase in load.
“…The improvements are due to the efficiency of the fiber as reinforcement. 21 This result confirms that jute fiber has superior mechanical properties, 11,21–23,25,26,28 good interactions and interfacial bonding with the matrix. 29–31 Figure 6.Effect of jute fiber loading on stress at break, elongation at break and Young's modulus of LDPE/PLA/PE-g-GMA/jute fiber composites.…”
Section: Resultssupporting
confidence: 65%
“…3,23 This fact may be related to the nature of jute fibers which present lower impact strength than polymer blend matrix 7,21,24,25 and possess moderately high stiffness. 28 Furthermore, the impact strength is reduced by the embrittlement of composites. 24 The impact performances of fiber-reinforced composites depend on many factors.…”
Section: Resultsmentioning
confidence: 99%
“…The tensile test was carried out in the following conditions: For LDPE/PLA blends, it was conducted according to the standard ISO 527-2 with a Zwick/Roell testing machine at a crosshead speed of 150 mm/min. 28,29 The dimensions of the samples were 150 × 10×4 mm 3 .For LDPE/PLA compatibilizers and LDPE/PLA composites, the test was performed according to the standard NF T51-034 using an Instron Calibration Lab, Instron 33R4469 testing machine, respectively, at a crosshead speed of 20 mm/min and 10 mm/min. The dimensions of the samples were 75 × 4×2 mm 3 .…”
Section: Methodsmentioning
confidence: 99%
“…For LDPE/PLA blends, it was conducted according to the standard ISO 527-2 with a Zwick/Roell testing machine at a crosshead speed of 150 mm/min. 28,29 The dimensions of the samples were 150 × 10×4 mm 3 .…”
This work deals with the valorization of waste jute fibers coming from carpet industries in the development of biocomposites based on blends of low-density polyethylene and poly lactic acid. First, low-density polyethylene /poly lactic acid blends of variable composition (100/0, 80/20, 50/50, 20/80, 0/100) were prepared. Their tensile properties and morphology were characterized. Tensile strength of the blends was lower compared to the pure poly lactic acid and the elongation decreased significantly with increasing poly lactic acid which is due to poor adhesion as evidenced by SEM analysis. These results indicated the incompatibility between low-density polyethylene and poly lactic acid. Thus, the aim of the second step was to find a relevant compatibilizer. For that purpose, five functionalized polyolefins were tested: poly(ethylene-co-glycidyl methacrylate) (8% glycidyl methacrylate) (PE-g-GMA), poly(propylene-co-ethylene-grafted maleic anhydride) (1.4% maleic anhydride) (PP-g-MA), poly(ethylene-co-acrylic-ester-co-glycidyl methacrylate) (E-AE-GMA) (8% glycidyl methacrylate, 24% methyl acrylate), polypropylene-grafted maleic anhydride (PP-g-MA) (high percentage maleic anhydride), poly(ethylene-co-butylacrylate-co-maleic anhydride) (E-BA-MAH) (6% butyl acrylate, 3% maleic anhydride). PE-g-GMA exhibited the best results in terms of tensile properties and morphology. Low-density polyethylene/poly lactic acid /PE-g-GMA (20/80/5) reinforced with 0-40 wt% jute fibers were prepared and characterized (tensile properties, charpy impact strength, morphology and thermal properties) in the last step. The results showed an improvement of tensile properties and a satisfactory interfacial adhesion between jute fibers and polymer blends. Furthermore, thermal stability was affected by the incorporation of 10% of jute fiber but varied very little with the increase in load.
“…This approach can be adapted to deal with other common contaminants, in particular PET and PVC, which are often encountered in waste-sourced plastics. Maleic anhydride-modified polymers are, in fact, effective adhesion promoters for a broad set of polar surfaces, including PET [ 22 ], and similar compounds can improve PVC dispersion in PE [ 23 ]. Ball milling conditions can be tuned to optimize size reduction and phase mixing, and BM has already been applied to PVC with interesting effects on morphology [ 15 ].…”
In the frame of a circular economy, the maximization of secondary raw-material recovery is necessary to increase the economic and environmental sustainability of landfill mining and reclamation activities. In this paper, the polyethylene-rich plastic fraction recovered from the reclamation of an abandoned industrial landfill (landfill-recovered plastic, LRP) has been characterized through spectroscopic, thermal, morphological, and mechanical analyses. Then, an economically viable valorization and recycling strategy was set up. The effectiveness of this strategy in the enhancement of LRP properties has been demonstrated through morphological and mechanical characterizations.
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