Saturday, November 7, 2015

Terracycle in Oregon: Are they doing a good job regarding plastics?

I found the following note regarding Terracycle performance in Oregon:

http://koin.com/2015/09/21/terracycle-helps-ore-students-repurpose-waste/

According to this note, Terracylce is collecting several kinds of waste, plastics among them. Furthermore, the article describes that Terracycle is using those plastics to produce new products. Keeping this in mind, I am asking myself, as polymer chemist, if this is the best thing to do.

Each time that a plastic is recycled, it looses mechanical and chemical properties. Therefore, each time that a plastic is re-used, that plastic needs to be used in a product whose demands are lower than the previous product. The only way to avoid this is using a chemical recycling where the polymer is decomposed again into its building blocks or monomers and then undergoes chemical reactions to become again a polymer. By proceeding this way, the re-cycled material can keep its properties (the properties can be improved depending on the chemical process).

Based on what we have seen until now, it seems that Terracycle has not considered the possibility of using the chemical recycling methods for their close-loop supply chain. In my opinion, Terracycle shall start considering this in order to be more efficient regarding the re-use of plastic materials. In this way, Terracycle is not only decreasing the amount of waste, but also the consumption of raw materials, such as oil.

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