Recycled nylon is usually made from pre-consumer fabric waste, although it also may come from post-consumer materials such as industrial fishing nets. Several "chain of custody" standards track recycled nylon through the supply chain, including the Recycled Claim Standard (RCS), Global Recycled Standard (GRS) and SCS Recycled Content.
Probably the best-known regenerated nylon product is Econyl, the first post-consumer recycled nylon to hit the market from Italian manufacturer Aquafil. Econyl is made of nylon waste from landfills and oceans in a closed-loop process and is infinitely recyclable. According to Aquafil, Econyl avoids about 50 percent of carbon dioxide emissions and uses about 50 percent less energy compared to nylon recycled yarn.
A high-performance yarn electrode material, cotton/graphene/polyaniline, is synthesized by coating primary fiber cores inside cotton yarns with graphene sheets and followed by further growing polyaniline nanowire array layers through in situ polymerization of aniline. The electron transportation is enhanced by the 3D graphene conductive network on cotton fibers, which further bridges the polyaniline nanowires. The polyaniline nanowires with small diameters ensure high electrochemically active surface area. The spaces within the polyaniline nanowire array layers and the hierarchical pores of the entire yarn electrode benefit the fast electrolyte ion diffusion. The unique 3D yarn electrode structure results in an excellent electrochemical performance.
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