Experimental investigation of the effects of a compatibilizing agent on the properties of a recycled poly(ethylene terephthalate)/polypropylene blend |
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| Authors: | Email author" target="_blank">Z?BaccouchEmail author S?Mbarek M?Jaziri |
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| Affiliation: | 1.Mechanical Department, Laboratoire des Systèmes Electro-Mécaniques, National Engineering School of Sfax,University of Sfax,Sfax,Tunisia;2.Mechanical Department, Laboratoire Mécanique de Sousse, National Engineering School of Sousse,University of Sousse,Sousse,Tunisia;3.Materials Department, Laboratoire Electrochimie et Environnement, National Engineering School of Sfax,University of Sfax,Sfax,Tunisia |
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| Abstract: | This study deals with the behavior of a recycled polyethylene terephthalate (PET)/polypropylene (PP) blends. The compatibilizing effect has been investigated to examine the recycling feasibility in industrial production. The compatibilizing efficiency of olefinic copolymers containing epoxy groups for a/polypropylene (PET/PP) blends was examined using scanning electron microscopy (SEM), differential scanning calorimetry (DSC), mechanical testing and rheological one. The effect of ethylene-glycidyl methacrylate (E-GMA, 92/8 wt%, Lotader AX8840) and ethylene–methyl acrylate-glycidyl methacrylate (E-MA-GMA, 68/24/8 wt%, Lotader AX8900) copolymers was investigated. The blends of PET/PP/compatibilizer at compositions 80/15/5, 85/11.25/3.75, 90/7.5/2.5 and 95/3.75/1.25 (wt%) were prepared by melt mixing in a single-screw extruder. Test specimens were prepared by compression moulding at processing temperatures of 250 °C. The incorporation of the compatibilizers has a large effect on the dispersion of the PP phase. Moreover, the copolymer was more efficient than the terpolymer. Especially, E-GMA was found to improve the elongation at break of the blends containing 80 % PET. |
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