This document stipulates the overall design, process technology, evaluation indicators, pollution control, etc. of in-situ chain-extended modified recycled plastic particles. This document is applicable to waste plastics that can produce hydroxyl, carboxyl and other groups after aging, such as polystyrene waste plastics containing unsaturated double bonds, etc. These groups can be chemically extended in situ through chemical reactions with chain extenders. reaction.
T/GDES 64-2021 history
2021T/GDES 64-2021 Technical requirements for in situ chain extension modified recycled plastic particles