Regenerative Energie
Reusing polymeric materials poses a global challenge. Polymer recycling is thus becoming an important issue in the current economy.
The mechanical recycling of bioplasticsis considered one of the suitable method to do so. This study aims to report on the impact that mechanical recycling has on the properties of recycled polylactide (PLA) generated from production waste (punching residues) from PLA yogurt cups. Glue and printed paper sticking to waste PLA represented a special challenge in this process. The impact that optimising the recycling process had on the purity of the recycled material was evaluated. Changes to the optical, rheological, mechanical and thermal properties of the recycled PLA were investigated. The findings revealed that optimising the process had a positive impact on optical properties and on the paper content of recycled PLA. It was noted that recycled PLA had a higher melt mass flow rate than virgin material due to the polymer chain scission mechanism responsible for the reduction in molar mass and material degradation. Certain mechanical properties like tensile strength, elongation and modulus remained relatively constant.
| Copyright: | © Wasteconsult International |
| Quelle: | Waste to Resources 2017 (Mai 2017) |
| Seiten: | 11 |
| Preis: | € 0,00 |
| Autor: | Ing. Denisa Bellušová Prof. Hans-Josef Endres Saskia Mauer |
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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