How Corn Plastics Are Made, And Why We Still Aren't Thrilled Our Discovery Channel sister site How Stuff Works has put out an interesting video on how corn plastics work. The video is informative about how corn plastics, or PLA, is produced. But it got us thinking about other issues with PLA that weren't really addressed.Corn plastics are controversial for a few reasons, not the least of which are that they use a resource that is energy intensive to produce, and because they can really gum up the works of recycling centers when not sorted properly. PLA can be sorted and recycled, but it takes some energy intensive processes to do it.
Making a plastic from potato starch In this activity students make a plastic from potato starch and investigate the effect that adding a ‘plasticiser’ has on the properties of the polymer that they make. Students can begin either with potatoes or with commercially bought potato starch. The practical is straightforward, the main hazard being the mixture boiling dry.
Little Windows - Brilliant Resin Project Center - ideas & tutorials Resin in Bezels We get a lot of questions about working with resin in bezels (a container or frame), so this is an extensive video that covers working in closed-back bezels, open-back bezels, and also mounting resin pieces in bezels. Lots of great info, enjoy! Click to watch this how-to video: Here are some of the projects created in this video, I only mixed 2 tablespoon-sized batches to make all of these! Embed a magnet! Killer Whales and Marine Pollutants PCBs are a family of compounds that were widely used as insulating oils in electrical transformers and capacitors, and also as ingredients in adhesives and caulking compounds. Although known to be dangerous to humans for a long time, PCBs were used in the US from the 1920’s until they were banned in 1977. During this time, many PCB manufacturing plants nationwide carelessly dumped PCBs into nearby marine waters, and attempts to dispose of it by burning sent it into the atmosphere, dispersing it worldwide. Urban bays in Seattle, Tacoma and Bremerton, WA have some of the highest levels of PCBs on the west coast. Elliot Bay, Sinclair Inlet and Commencement Bay are particular PCBs hotspots.
Polylactic acid Poly(lactic acid) or polylactide (PLA) is a thermoplastic aliphatic polyester derived from renewable resources, such as corn starch (in the United States), tapioca roots, chips or starch (mostly in Asia), or sugarcane (in the rest of the world). In 2010, PLA had the second highest consumption volume of any bioplastic of the world. The name "poly(lactic acid)" does not comply with IUPAC standard nomenclature, and is potentially ambiguous or confusing, because PLA is not a polyacid (polyelectrolyte), but rather a polyester. Developing sustainable bioplastics for 3D printers Feb.8, 2012 Many companies are working on recycled and biodegradable materials for the injection molding and packaging industries, can these materials being printed by a 3D printer? Students and professors from Stenden College in Emmen, the Netherlands are working on bioplastics for 3D printers.
polymers Luisa Pereira and Manuela Donoso collaborated on this musical instrument made of elastics and light. On the first version they used regular elastics coated with conductive ink and on the final version opted for stretch ... In this video Becky Stern from Adafruit shows how to make a simple circuit on a transparent sheet of plastic coated with indium tin ... Heart On Your Sleeve from Scott Garner on Vimeo. Endlighten is an acrylic sheet infused with colorless light diffusing particles. While regular acrylic only diffuses light around the edges, ...
Choose A Mandala And Discover What It Reveals About You Okay, I want you to do a little exercise with me. Close your eyes, take a deep breath 3 times. Open your eyes and look over the graphic below. Choose which mandala speaks to you personally. Sustainable Luxury How can we grow the world we want? Bioneers CEO and Co-Founder, Kenny Ausubel reflects on the pressing environmental and social challenges of our time and the real solutions needed for a global transformation. A few years ago, I got an email from Paris inviting Bioneers to put together part of the program for a conference there.