• Zubgub@lemmy.blahaj.zone
      link
      fedilink
      arrow-up
      1
      ·
      2 months ago

      PHA (Polyhydroxyalkanoates) is a truly biodegradable plastic (ASTM D6691Marine Biodegradable). Some bacteria naturally make it. The stuff I have is very bendy/rubbery so its not really a PLA alternative plastic though if you need something stiff/hard.

      Another plus is that it doesn’t need a heated bed so it uses less electricity to print with.

      • aloofPenguin@lemmy.world
        link
        fedilink
        arrow-up
        1
        ·
        2 months ago

        That sounds really cool/ interesting! Keeping the bendy-ness/ rubbery-ness in mind, would you say that it could be a TPU/ PETG (certain types) alternative?

    • schmurian@lsmu.schmurian.xyz
      link
      fedilink
      arrow-up
      1
      ·
      2 months ago

      This. In our city, many people put their organic waste into plastic bags (which are labeled as biodegradable) because they are sold at many stores. However, after doing a tour through our recycling facility, they told us they don’t have the equipment to properly compost it.

    • Anivia@feddit.org
      link
      fedilink
      arrow-up
      0
      ·
      2 months ago

      Pla filament does actually biodwgrade in a regular household compost. It just takes years