Abstract
The viability of recycling post-industrial packaging waste, compounded from multilayer laminated PET-PE films, for production of polymer blends with good physico-mechanical performance is analyzed. Initially, several PET-PE model-blends were prepared from fresh polymers and were compounded with different formulations, based on design of experiments (DOE). Polymer compatibilizers based on maleic anhydride (PE-g-MA) and glycidyl methacrylate (E-GMA) have been used to promote the compatibilization reaction. The physico-mechanical properties of the model-blends were evaluated by response surface methodology (RSM). Finally, the post-industrial waste was compounded with the same concentration of compatibilizers in the previous set of model-blends. The DOE methodology showed to be a useful tool for assessing the recycling, since it helped to produce recycled materials with acceptable physico-mechanical properties. Between both compatibilizers studied, PE-g-MA showed to be the best additive for compatibilization due to the presence of a polyamide component in the waste, which undergoes a kinetically favorable compatibilization reaction.
Highlights
Plastics are versatile materials that are present in all principles, objectives, guidelines, goals and actions in aspects of the modern life, providing goods and services order to provide a better management of the several types that no other material would be able to provide
The final morphology is dependent on several parameters such as: processing conditions, Polyethylene Terephthalate (PET)/PE ratio, temperature of crystallization of the individual components and the viscosity ratio
The design of experiments guided the construction of PET/PE model-blends, which were used to screen their physico-mechanical behavior
Summary
Plastics are versatile materials that are present in all principles, objectives, guidelines, goals and actions in aspects of the modern life, providing goods and services order to provide a better management of the several types that no other material would be able to provide. Of solid waste, increasing sustainability from the local level the accumulation of plastics in the environment has become to the national level. This shall contribute even more for the a significant problem[1]. An ideal solution would be the utilization of recycled polymers, such as thermoplastics, but recovery and the recycling of those materials, prolonging still represents a great challenge due to the low capacity of its life cycle and reducing environmental issues. Recycling of post-industrial and post-consumer plastics has been spread rapidly among the industry[2]
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