1 / 30

RECYCLED PET IN FINLAND – what to do with it?

RECYCLED PET IN FINLAND – what to do with it?. Valeria Poliakova Department of Business administration, Media and Technology 15.09.08. PET. P oly E thylene Terephthalate ... it is a plastic [ Feel free to ask questions during the presentation ]. Agenda for today. Why PET was chosen?

jenna
Download Presentation

RECYCLED PET IN FINLAND – what to do with it?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. RECYCLED PET IN FINLAND – what to do with it? Valeria Poliakova Department of Business administration, Media and Technology 15.09.08

  2. PET PolyEthylene Terephthalate ... it is a plastic [Feel free to ask questions during the presentation] Recycled PET in Finland - what to do with it?

  3. Agenda for today... • Why PET was chosen? • Objectives of the work • Findings • Conclusions • Future development Recycled PET in Finland - what to do with it?

  4. Why PET? • Sustainability is important...and in fashion • ”Waste = Resource” is an attractive idea • Change in legislation • PET bottles are readily available resource Recycled PET in Finland - what to do with it?

  5. Objectives Is it true that a jacket and a bottle are the same material? How to recycle PET? What is feedstock recycling? What can you do from PET? What is PET? Where to recycle PET? How to recycle PET? Is it better to use it for bottles? What is mechanical recycling? Recycled PET in Finland - what to do with it?

  6. Objectives • to learn about recycling system in Finland • to learn more about PET and RPET • to find differencess between PET and RPET • to find applications of RPET Recycled PET in Finland - what to do with it?

  7. Hartwall, FinnSpring Circulation of PET in Finland Citymarket PALPA Preformia, Muovix Recycled PET in Finland - what to do with it?

  8. Waste management options Recycled PET in Finland - what to do with it?

  9. Plastic waste grades • Single-grade production and processing scarp and surplus raw material • Single-grade post-consumer commercial waste • Mixed-grade post-consumer commercial waste • Household waste and agricultural plastic waste Recycled PET in Finland - what to do with it?

  10. Viability of recovery method Recycled PET in Finland - what to do with it?

  11. MECHANICAL MECHANICAL Feedstock Recycling ENERGY RECOVERY Recycled PET in Finland - what to do with it?

  12. PET + Mechanical Recycling = RPET (Recycled PolyEthylene Terephthalate) Recycled PET in Finland - what to do with it?

  13. RPET Extrusion, Pelletizing, Drying, Crystallizing PET Collection, Baling, Sorting, Grinding, Washing, Sorting, Rinsing, Drying Recycled PET in Finland - what to do with it?

  14. PET Tensile strength 47 MPa Elongation 4 % Glass transition 75 ˚C Water absorption 0.3 % RPET ??? PET vs RPET Recycled PET in Finland - what to do with it?

  15. Properties depend on... • Characteristics of polymer (inherent features) • Processing parameters • External factors (sun, humidity, thermal history) Recycled PET in Finland - what to do with it?

  16. 1. Characteristics of polymer • Molecular weight • Chemical structure of the molecules • Polymer morphology (crystallinity, orientation) • Additives • Co-polymers Recycled PET in Finland - what to do with it?

  17. Characteristics affect all properties Recycled PET in Finland - what to do with it?

  18. RPET has... Decrease in molecular weight • reduction of mechanical strength and stiffness • decrease in melting temperature • better flow characteristics of the melt Disturbed crystallinity and entanglements • decrease in strength, toughness, viscosity • surface defects Recycled PET in Finland - what to do with it?

  19. 2. Processing • Grinding (melting temperature, melt flow) • Extrusion • Drying (molecular weight, color) • Filtering (throughput capacity) Recycled PET in Finland - what to do with it?

  20. Typical single screw extruder Wikipedia Recycled PET in Finland - what to do with it?

  21. Vent type molding machine Recycled PET in Finland - what to do with it?

  22. PET thermal degradation RPET thermal degradation generated AA level mechanical degradation contamination Challanges • free acetaldehyde (AA) level • hydrolysis Recycled PET in Finland - what to do with it?

  23. Applications of RPET Recycled PET in Finland - what to do with it?

  24. Europe Finland Applications of RPET Recycled PET in Finland - what to do with it?

  25. Recycled PET in Finland - what to do with it?

  26. Applications of RPET • systematic approach • comparing specifications to requirements • the most similar to PET / RPET plastic • PBT, PMMA Recycled PET in Finland - what to do with it?

  27. Conclusions 1/2 • Mechanical recycling is the best recovery method for PET bottles • RPET has different molecular weight and crystallinity / orientation of molecules than PET • PET bottles collected in Finland have a great potential to be recycled back to bottles Recycled PET in Finland - what to do with it?

  28. Conclusions 2/2 • Considering applications for RPET one should consider applications PET, PBT and PMMA are used for Recycled PET in Finland - what to do with it?

  29. Future development • Incineration of PET • Properties of virgin vs recycled material • Effect of additives on RPET • Effect of contaminants on recycling process Recycled PET in Finland - what to do with it?

  30. Thank you for your attention! PET-related questions? poliakov@arcada.fi

More Related