Posted: May 09, 2019 3:45 am
by Macdoc
Plastic gets a do-over: Breakthrough discovery recycles plastic from the inside out
Scientists have made a next-generation plastic that can be recycled again and again into new materials of any color, shape, or form
Date:
May 7, 2019
Source:
DOE/Lawrence Berkeley National Laboratory
Summary:
Researchers have designed a recyclable plastic that can be disassembled into its constituent parts at the molecular level, and then reassembled into a different shape, texture, and color again and again without loss of performance or quality.

Light yet sturdy, plastic is great -- until you no longer need it. Because plastics contain various additives, like dyes, fillers, or flame retardants, very few plastics can be recycled without loss in performance or aesthetics. Even the most recyclable plastic, PET -- or poly(ethylene terephthalate) -- is only recycled at a rate of 20-30%, with the rest typically going to incinerators or landfills, where the carbon-rich material takes centuries to decompose.

Now a team of researchers at the U.S. Department of Energy's (DOE) Lawrence Berkeley National Laboratory (Berkeley Lab) has designed a recyclable plastic that, like a Lego playset, can be disassembled into its constituent parts at the molecular level, and then reassembled into a different shape, texture, and color again and again without loss of performance or quality. The new material, called poly(diketoenamine), or PDK, was reported in the journal Nature Chemistry.

:clap:
https://www.sciencedaily.com/releases/2 ... 110452.htm