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    Adhesives tagged posts

    Upcycling: New Catalytic process turns Plastic bags into Adhesives

    December 18, 2020, Categories  Chemistry/Nanotechnology

    Using a catalyst based on ruthenium (gold ball, center), UC Berkeley chemists were able to add specific chemical groups — in this case, OH (red) – to polyethylene polymer chains, creating an oxidized polyethylene (foreground) that adheres strongly to metal but retains the unique plastic properties of the polymer. (UC Berkeley image by Liye Chen)

    Converting polyethylene packaging into high-value products incentivizes plastics recycling. Only a small percentage of plastic bags and other polyethylene packaging is recycled because only low-value products can be made from this waste. Chemists have created a catalytic process that preserves the desirable properties of polyethylene while adding another attribute – stickiness – that increases the value of the recycled product...

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