Light at the end of the tunnel / Fabian Knappich in KUNSTSTOFFE INTERNATIONAL, Vol. 107, N° 6-7 (06-07/2017)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 6-7 (06-07/2017) . - p. 51-54 Titre : Light at the end of the tunnel : Recycling of plastic-metal composite materials from headlights Type de document : texte imprimé Auteurs : Fabian Knappich, Auteur ; Martin Schlummer, Auteur ; Katja Eggert, Auteur ; Fabian Wolff, Auteur ; Karin Agulla, Auteur Année de publication : 2017 Article en page(s) : p. 51-54 Langues : Anglais (eng) Catégories : Automobiles -- Eclairage Lixiviation Matériaux hybrides -- Recyclage Matières plastiques Matières plastiques dans les automobiles Métaux Polycarbonates Polypropylène Séparation (technologie) Index. décimale : 668.4 Plastiques, vinyles Résumé : Rarely does a single material meet all automotive engineering requirements. Yet hybrid materials cannot be disassembled manually with reasonable effort, so that production waste is only being used thermally to date. Sensor-assisted plastic sorting however promises good yields and has economic potential. Note de contenu : - Processing and sorting - Identifying and separating plastics in headlights - Recycling in small-scale technical tests - Potential analysis and economic efficiency - FIGURES : 1. Mixed waste from headlight production : fully assembled headlights and aluminum-coated plastics - 2. Process concept in the ForCycle project group for recycling headlight production waste - 3. Exemplary composition of a headlight in percentages by weight with differentiated examination of the combined fraction and pure plastic fraction - 4. Separation of metal-plastic composites by leaching : dependency of the leaching time on the concentration of caustic soda - Yields and purities of the fractions after automatic sorting by RTT Steinert : the specified percentage proportions respectively refer to the original input quantity after the separation of fines - 6. Exemplary plastic fractions with purities > 90 % after automatic sorting : PC fraction, PP fraction. For optimum compatibility, the material was shredded after fractioning - 7. Potential analysis of the pure plastic fractions (the 16.5 % proportion of metal is not considered here). Increasing the effectiveness to 80% by optimizing material disintegration is also shown as a realistic scenario - 8. Economic efficiency calculation for the developed automobile headlight recycling process with an annual waste volume of 2000 t/a En ligne : https://drive.google.com/file/d/1SwUj1GKkcpXReyc1XD86xEs3_Ih9yaFR/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29006 [article]

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Recycling of laminate films / Martin Schlummer in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 1 (2022)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 112, N° 1 (2022) . - p. 26-28 Titre : Recycling of laminate films : Solvent-based recycling processes Type de document : texte imprimé Auteurs : Martin Schlummer, Auteur ; Jochen Neubauer, Auteur ; Fabian Knappich, Auteur ; Andreas Mäurer, Auteur ; Ulrich Weig, Auteur ; Marcel Backfisch, Auteur ; Alexander Rinderhofer, Auteur Année de publication : 2022 Article en page(s) : p. 26-28 Langues : Anglais (eng) Catégories : Dissolution (chimie) Films plastiques Matières plastiques -- Recyclage Polyéthylène basse densité Réaction en chaîne par polymérase Recyclage chimique solvants Index. décimale : 668.4 Plastiques, vinyles Résumé : Composite films are successfully used in the packaging industry to reduce the weight of the packaging material and to increase the product shelf life. Thus, they contribute significantly to CO2 reduction. However, due to functional requirements, composite structures often use incompatible plastics, which prevent recycling in proven mechanical re-extrusion processes. Solvent-based recycling processes offer an attractive and technically mature solution to tackle the challenge. Note de contenu : - Physical dissolution of plastics from composite structures - Successful field test : industrial pilot plant running in Indonesia - The European multiCycle project - MultiCycle plant for a wide variety of plastic fractions - Circular packaging funding project - Economical plant operation from 8000 t/a - Table 1 : Typical properties of a LDPE PCR compared to LDPE and LLDPE virgin material - Fig. 1 : Blow film production in Indonesia based on recycled LDPE - Fig. 2 : The demonstration plant of Lömi GmbH processes up to 25 kg of different waste fractions per hour En ligne : https://drive.google.com/file/d/1UY6QgEPwsKOui-FUmOcMGiSnn8YQwwOE/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37204 [article]

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