Regenerative Energie
Packaging makes up an important part of food production both on side of suppliers and the manufacturer. Different kinds of packaging assure safe transport of goods as well as high quality of food products such as taste, smell, and colour. Therefore, plastic packaging provides a broad variety of properties, and their use in multilayer films enables tailoring properties, for example, films with desired medium barrier properties within excellent mechanical strength. However, the service life of plastic packaging is very short and at the end of it arises the problem of how to reuse or recycle such material to reduce plastic waste (Alipour et al. 2015), (Cenci-Goga et al. 2020).
This work describes different approaches which lead to more environmentallyfriendly plastic waste management. Plastic waste was analysed using light microscopy, Ramanspectroscopy, and differential scanning analysis. Afterward, the waste was sorted by polymercontent and mechanically recycled. Recycled material was used to produce films for tertiary packaging(shrinkage films). One possibility is recycling only single-layer films from polyethylene (PE),another possibility is to recycle multilayer films consisting of PE, polyamide 6 (PA6), and ethylenevinyl alcohol copolymer (EVOH). Due to mixing films, and thus polymers, in a certain ratio, bothapproaches lead to recycled films with sufficient mechanical properties even without using anycompatibilizers.Two different kinds of films - (i) lightweight films from PE and (ii) biopolymers films - were testedas a replacement for stretch wraps (quaternary packaging). Due to their design, lightweight filmsdon’t fulfill the requirements for the packaging in the company. Out of seven different biopolymerfilms, three reached the required strength and toughness for the stretch wrap used in the company.Recycled films can replace films used as tertiary packaging and reduce significantly the amountof plastic waste. Also using biopolymers films instead of conventional films can cut down the amount of non-degradable plastic waste.
| Copyright: | © Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben |
| Quelle: | Recy & Depotech 2022 (November 2022) |
| Seiten: | 6 |
| Preis: | € 3,00 |
| Autor: | Katerina Plevová M. Feuchter Mag. Dr. Martin Wellacher A. Jamnik Nadine Wild |
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Hochlauf der Wasserstoffwirtschaft
© Lexxion Verlagsgesellschaft mbH (8/2024)
Überblick über und Diskussion der Maßnahmen zum beschleunigten Ausbau
der Wasserstoffinfrastruktur in Deutschland
Die innerstaatliche Umsetzung des Pariser Klimaschutzübereinkommens
- ein Rechtsvergleich
© Lexxion Verlagsgesellschaft mbH (8/2024)
Like all public international law treaties, the Paris Climate Accords rely on national law for their implementation. The success of the agreement therefore depends, to a large extent, on the stepstaken or not taken by national governments and legislators as well as on the instruments and mechanisms chosen for this task. Against this background, the present article compares different approaches to the implementation of the Paris Agreement, using court decisions as a means to assess their (legal) effectiveness.
Klimaschutzrecht und Erzeugung erneuerbarer Energien in der Schweiz
© Lexxion Verlagsgesellschaft mbH (8/2024)
Verschachtelte Gesetzgebung unter politischer Ungewissheit