https://www.nde-ed.org/EducationResources/CommunityCollege/Materials/Structure/polymer.htm
PE
https://www.google.com/search?q=pe+plastic

https://www.youtube.com/watch?v=C3oiy9eekzk van granulaat tot (8:32, van 1:37 tot 4:36)
https://www.youtube.com/watch?v=zrzKih5rqD0 van granulaat tot blokje (5:36, eerste 1:30)
https://www.youtube.com/watch?v=oYaVrgIafPQ van de legoblok tot de verpakkingen op de pallet (4:17)

https://www.youtube.com/watch?v=0OZnwULJ4LM maak pet-fles
https://www.youtube.com/watch?v=tGbLeOCbKQk verwarmen pet-fles
https://www.thenakedscientists.com/get-naked/experiments/boiling-yoghurt-pots verwarm youghourt potje