Halogen-free flame-retardant compounds. Thermal decomposition and flammability behavior for alternative polyethylene grades

The effect of six halogen-free flame retardant (FR) formulations was investigated on the thermal stability of two low-density polyethylenes (LDPE) and one linear low-density polyethylene (LLDPE), by means of thermogravimetric analysis (TGA) under nitrogen and air atmosphere. The relative data were combined with flammability properties and the overall performance of the FRs was correlated with the type of branching in the polyethylene grades and to their processing behavior. The thermal degradation kinetics was further determined based on the Kissinger and Coats-Redfern methods. In terms of flammability, the addition of a triazine derivative and ammonium polyphosphate at a loading of 35 wt. %. was found to be the most efficient, leading to UL 94 V0 ranking in the case of the LDPE grade produced in an autoclave reactor. - 2019 by the authors.Funding: This publication was made possible by the NPRP award [NPRP 9-161-1-030] from the Qatar National Research Fund (a member of The Qatar Foundation). The statements made herein are solely the responsibility of the author(s)

Safety assessment of the process ‘PEGRA-V’, based on Starlinger IV+® technology, used to recycle post-consumer PET into food contact materials

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Safety assessment of the process ‘Alimpet’, based on EREMA MPR technology, used to recycle post-consumer PET into food contact materials

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Safety assessment of the process ‘EREMA Recycling (MPR, Basic and Advanced technologies)’, used to recycle post-consumer PET into food contact materials

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Safety assessment of the process ‘Märkische Faser’, based on NGR technology, used to recycle post-consumer PET into food contact materials

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Safety assessment of the process ‘Veroniki Ecogrup SRL’, based on Starlinger Decon technology, used to recycle post-consumer PET into food contact materials

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Safety assessment of the process ‘Plastienvase’, based on EREMA Basic technology, used to recycle post-consumer PET into food contact materials

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Safety assessment of the process ‘4PET’, based on EREMA Basic technology, used to recycle post-consumer PET into food contact materials

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An Integrated Characterization Strategy on Board for Recycling of poly(vinyl butyral) (PVB) from Laminated Glass Wastes

: Polyvinyl butyral (PVB) is widely used as an interlayer material in laminated glass applications, mainly in the automotive industry, but also for construction and photovoltaic applications. Post-consumed laminated glass is a waste that is mainly landfilled; nevertheless, it can be revalorized upon efficient separation and removal of adhered glass. PVB interlayers in laminated glass are always plasticized with a significant fraction in the 20-40% w/w range of plasticizer, and they are protected from the environment by two sheets of glass. In this work, the aim is to develop a thorough characterization strategy for PVB films. Neat reference PVB grades intended for interlayer use are compared with properly processed (delaminated) post-consumed PVB grades from the automotive and construction sectors. Methods are developed to open opportunities for recycling and reuse of the latter. The plasticizer content and chemical nature are determined by applying well-known analytical techniques, namely, FT-IR, TGA, NMR. The issue of potential aging during the life cycle of the original laminated material is also addressed through NMR. Based on the findings, a sensor capable of directly sorting PVB post-consumer materials will be developed and calibrated at a later stage

Safety assessment of the process ‘Coexpan Deutschland’, based on EREMA Basic technology, used to recycle post-consumer PET into food contact materials

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