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of PU waste. For example, it was shown recently that the incorporation of disulfide bonds in PU foams led to their malleability and reprocessability into elastomers. Another possible solution is the addition of catalyst to post-consumer PU, which activates the exchange of urethane bonds and makes them reprocessable .

Self-healing materials

Polymer networks are susceptible to damage during their use. Self-healing is a promising tool to increase the lifetime

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