How is it difficult to recycle? The temperatures requires to do so are less than metal, the 3D printing communities has people that recycle them into filaments all the time. I don’t think the problem is the plastic so much as it is how it is still treated as a disposable container and that neither companies nor governments pay for or provide reclamation means like recycling machines that pay for each bottle collected. In other words, the problem is more cultural than material.
Depends on what you consider degraded, the only reason it would stop being recyclable is if it became too contaminated with foreign substances or exposure, which applies to anything.
Others have pointed out the degradation issue, but you’re also assuming that all plastics are thermoplastics. They are not. There’s huge variation in chemical composition and material properties between different plastics, and most of them can’t be melted and reformed.
But then the problem isn’t with all plastics, it’s with certain plastics, and around 70% of global plastic production are concentrated around commodity plastics, all of which are thermoplastic. The greatest degradation issue occurs with biodegradable plastics, which is perceived as a good thing for them, though even biodegradable PLA has toxicity concerns.
How is it difficult to recycle? The temperatures requires to do so are less than metal, the 3D printing communities has people that recycle them into filaments all the time. I don’t think the problem is the plastic so much as it is how it is still treated as a disposable container and that neither companies nor governments pay for or provide reclamation means like recycling machines that pay for each bottle collected. In other words, the problem is more cultural than material.
And how many times do they recycle the filament until it’s too degraded to use?
Depends on what you consider degraded, the only reason it would stop being recyclable is if it became too contaminated with foreign substances or exposure, which applies to anything.
Others have pointed out the degradation issue, but you’re also assuming that all plastics are thermoplastics. They are not. There’s huge variation in chemical composition and material properties between different plastics, and most of them can’t be melted and reformed.
But then the problem isn’t with all plastics, it’s with certain plastics, and around 70% of global plastic production are concentrated around commodity plastics, all of which are thermoplastic. The greatest degradation issue occurs with biodegradable plastics, which is perceived as a good thing for them, though even biodegradable PLA has toxicity concerns.