5 - Shape molten plastic

In this course, we present an overview of the processes used to shape molten plastic, from extrusion-compression to plastic joinery.

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Responsible	Anna Kalifa
Update	04/28/2026
Time	7 hours 42 minutes
Registered	25

Course

Decentralised recycling Advanced

5.1 - Overview of mechanical recycling processes

7Lessons · 2 hr 35 min
- 5.1.1 - Finished products made from recycled plastic 🎬
- 5.1.2 - Overview of recycling processes at the processing stage
- 5.1.3 - Using an extruder to process plastic 🎬
- 5.1.4 - Using fillers, colourants and other additives 🎬
- Case study: Pelletising at Shizuka in Nairobi, Kenya 🎬
- Case study: Continuous profile extrusion at ID Fabric in Dar es Salaam, Tanzania 🎬
- Quiz - Chapter 5.1
  
  10 xp
5.2 - Making recycled plastic boards with an extruder

8Lessons · 2 hr 45 min
- 5.2.1 - Case study: profile extrusion at SUNU Plastic Odyssey - Dakar, Senegal 🎬
- 5.2.2 - Sizing your profile extruder
- 5.2.3 - Connecting the extruder to the moulds: the three-way valve
- 5.2.4 - Intrusion moulds
- 5.2.5 - The cooling system
- 5.2.6 - Finished plastic profile products
- Case study: The profile business at Ecoact in Dar es Salaam, Tanzania 🎬
- Quiz - Chapter 5.2
  
  10 xp
5.3 - Making pavers by extrusion-compression

5Lessons · 1 hr 40 min
- 5.3.1 - Case study: plastic-sand line at SUNU Plastic Odyssey in Dakar, Senegal
- 5.3.2 - Specific features of a plastic-sand extruder
- 5.3.3 - Using a hydraulic press and sizing the moulds
- 5.3.4 - Plastic-sand composite products
- Quiz - Chapter 5.3
  
  10 xp
5.4 - Plastic joinery

2Lessons · 27 min
- 5.4.1 - Case study: the specifics of plastic joinery in Dakar, Senegal
- Quiz - Chapter 5.4
  
  10 xp
Certification – Plastic Odyssey Academy

1Lessons · 15 min
- Shape the material