Multi-Purpose Modifiers Pump Up Properties of Virgin & Recycled Plastics

摘要

Four relatively new polymer modifiers have multiple functions in virgin and/or recycled resins. One is an unusual catalyst for compatibilizing multi-polymer blends and post-consumer recycle (PCR) mixtures and has promise to allow use of high levels of PCR in consumer goods. Second is a family of 1:1 alternating copolymers of ethylene and maleic anhydride (EMAh) modifiers that show high efficiency as chain extenders for engineering resins such as nylon and PBT, but are also promising in upgrading recycled nylon 6 and 66 and compatibilizing recycled PET in nylon 66.