Plastics can be found everywhere in the environment and it can be difficult to differentiate between the various types of plastic that exist. How do you tell which are recyclable and which are not? This is a good time to remind ourselves of the various principles of recycling….
The seven principles of recycling plastic materials
Since plastic as a material is very difficult to recycle, there are only 4 main families of recyclable plastic, namely PP (polypropylene), PET (polyethylene terephthalate), HDPE (high-density polyethylene) and LDPE (low-density polyethylene).
The plastics industry has created a system based on 7 key principles, numbered 1 to 7, corresponding to plastics with different characteristics and properties.
| code | Type de plastique | Utilisation |
|---|---|---|
 | Polyethylene Terephthalate (PET) | fizzy drink bottles, cooking oil bottles |
|
| High Density Polyethylene (HDPE) | detergent bottles, fruit juice bottles, milk bottles, etc. |
|
| Polyvinyl Chloride (PVC) | water bottles, shampoo bottles, plastic film, etc. |
|
| Low Density Polyethylene (LDPE) | plastic bags and packaging, bin bags, etc. |
|
| Polypropylene (PP) | yoghurt pots, margarine tubs, children’s cups, flasks, etc. |
 | Polystyene (PS) | plastic cups, yoghurt pots, hamburger boxes, etc. |
 | Any other type of plastic | … |
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