this post was submitted on 07 Jul 2024
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Do the prints slowly release microplastics into the water that kill the urchins?
If they used PLA(made of cornstarch) which is common for fdm 3d printing then theres no threat of microplastics from what ive read. it is biodegradable, but very slowly.
I doubt it's 100% cornsarch. I work in the plastics industry and there's all sorts of travesties going on. We also have a line of cornstarch-made products, but they're all scams when it comes to "recycling" and "being biodegradable".
There's definitely plastic in it.
I don't know what you are doing in the plastics industry, but it seems that you don't understand what words "biodegradable" and "plastic" mean.
PLA is biodegradable. Just only under industrial conposter conditions so yeah still a problem.
But a plastic is just a chain of polymers, it makes it difficult but not impossible to biodegradability depending on chemical and structure. Almost all plastics don't but some do