4 ms·

I read up on PLA when I got my 3D printer because it's popular material for that. From what I understand, it's biodegradable above 50° C. Not something you'll f

by mcv 1y ago

I read up on PLA when I got my 3D printer because it's popular material for that. From what I understand, it's biodegradable above 50° C. Not something you'll find outside Death Valley. Still better than most other options, but it would be nice if we had something that was stable for weeks and then degrades nicely.

latexr 1y ago
> From what I understand, it's biodegradable above 50° C. Not something you'll find outside Death Valley. We’re not that far off in Europe. Give it a couple of years more and climate change will make sure we get there. https://jakubmarian.com/highest-recorded-temperature-by-country-in-europe/ https://jakubmarian.com/highest-recorded-temperature-by-coun...
- inavida 1y ago
  [dead]
lm28469 1y ago
Not all PLA are created equal though. Raw PLA pellets won't behave the same way a 3d printer filament choke full of dyes, additives to make them more UV resistance, &c. There are plenty of posts of people putting 3d prints in compost piles, for months or years, and visually not much happens. Even stuff advertiser as bio don't fare that well: https://www.youtube.com/watch?v=tavrkWrazWI https://www.youtube.com/watch?v=tavrkWrazWI
- hedora 1y ago
  If you dig up a sufficiently old landfill you’ll find pristine newspapers. The idea that you can coat much more resilient stuff in PFAS and label it “biodegradable” is at least as big a scam as California’s $0.10 “reusable” bags, or mixed stream recycling. I’m for taking each use of plastic, by global volume, and then banning them, in order. We should probably start with fishing nets. Alternatively, the industry should need to produce 200% as much post-consumer recycled plastic made from the same grade as they’re manufacturing. This would act as a tax, strongly encouraging investment in more sustainable materials. Maybe drop that to 150% if the plastic in the product is 100% recycled.

by mcv 1y ago

latexr 1y ago

> From what I understand, it's biodegradable above 50° C. Not something you'll find outside Death Valley. We’re not that far off in Europe. Give it a couple of years more and climate change will make sure we get there. https://jakubmarian.com/highest-recorded-temperature-by-country-in-europe/ https://jakubmarian.com/highest-recorded-temperature-by-coun...

inavida 1y ago
[dead]

lm28469 1y ago

Not all PLA are created equal though. Raw PLA pellets won't behave the same way a 3d printer filament choke full of dyes, additives to make them more UV resistance, &c. There are plenty of posts of people putting 3d prints in compost piles, for months or years, and visually not much happens. Even stuff advertiser as bio don't fare that well: https://www.youtube.com/watch?v=tavrkWrazWI https://www.youtube.com/watch?v=tavrkWrazWI

hedora 1y ago
If you dig up a sufficiently old landfill you’ll find pristine newspapers. The idea that you can coat much more resilient stuff in PFAS and label it “biodegradable” is at least as big a scam as California’s $0.10 “reusable” bags, or mixed stream recycling. I’m for taking each use of plastic, by global volume, and then banning them, in order. We should probably start with fishing nets. Alternatively, the industry should need to produce 200% as much post-consumer recycled plastic made from the same grade as they’re manufacturing. This would act as a tax, strongly encouraging investment in more sustainable materials. Maybe drop that to 150% if the plastic in the product is 100% recycled.