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Visar resultat 1 - 5 av 14 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Mechanical and thermal properties of recycled WEEE plastic blends

   Författare :Sandra Tostar; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SEBS; HIPS; extrusion; WEEE; WEEEBR; melt-blending; plastics recycling; gamma irradiation; PP; ABS; compatibilization; polymer degradation;

   Sammanfattning : Electronic waste is the fastest growing waste stream today, and the recycling of the plastics from waste electrical and electronic equipment (WEEE) has attracted great attention recently for environmental reasons and to comply with the European Union’s (EUs) WEEE Directive. The plastics fraction in WEEE is between 20 and 35 weight % (wt%). LÄS MER

3. 2. Functional Properties and Morphology of Recycled Post-consumer WEEE Thermoplastic Blends

   Författare :Erik Stenvall; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; morphology; melt-blending; compatibilisation; extrusion; SEBS; WEEE; physical ageing; TOF-SIMS; co-continuous; chemical degradation; plastics recycling;

   Sammanfattning : This work concerns a waste electrical and electronic equipment blend of recycled plastics (WEEEBR), reprocessed from a low density thermoplastics batch (600 kg) by removal of non-thermoplastic contamination (1.2 weight % (wt%)). LÄS MER

4. 3. Pyrolysis and Detoxification of Waste Electrical and Electronic Equipment (WEEE) for Feedstock Recycling

   Författare :Panagiotis Evangelopoulos; Weihong Yang; Efthymios Kantarelis; Tobias Richards; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Pyrolysis; WEEE; solvent extraction; brominated flame retardants; Tetrabromobisphenol A; Auger reactor; Πυρόλυση; ΑΗΗΕ; εκχύλιση με διαλύτη; βρωμιωμένα επιβραδυντικά φλόγας; Τετραβρωμοδιφαινόλη Α; Pyrolys; WEEE; lösningsmedelsextraktion; bromerade flamskyddsmedel; tetrabrombisfenol A; Teknisk materialvetenskap; Materials Science and Engineering;

   Sammanfattning : The trends in waste electrical and electronic equipment (WEEE) generation shows that their volume constantly increases, while the current waste management technologies have proven to be insufficient in order to meet the strict criteria and the new legislations of the European Union. Pyrolysis and thermal treatment in general could be a valuable solution for closing the loop of materials and could contribute to the energy demands of modern society. LÄS MER

5. 4. Upgrading of fine residual electronic waste by microwave pyrolysis - Material Influence

   Författare :Mattias Andersson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dielectric properties of waste; recycling; Microwave pyrolysis; WEEE; Waste electrical and electronics equipment;

   Sammanfattning : The large and increasing volumes of waste electrical and electronics equipment (WEEE) in society today make it important to collect and recycle these materials to as high extent as reasonable. Conventional recycling methods are based on mechanical treatments such as shredding, sorting and separation. LÄS MER

7. 5. Electronic Waste Plastics Characterisation and Recycling by Melt-processing

   Författare :Erik Stenvall; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; melt-blending; WEEE; ternary polymer blend; processing conditions; plastics recycling; composition analysis; e-waste;

   Sammanfattning : Melt-processing of blended plastics from waste electrical and electronic equipment (WEEE) is a method to facilitate mechanical recycling, and this might improve the recycling conditions and increase the amounts of plastics being recycled. To ensure the quality of melt-blended plastic waste, it is essential to know the composition of the incoming material and then possibly improve the compatibility between the different polymer phases. LÄS MER