'As good as New' Chain extender restores reclaimed resins

摘要

Condensation polymers like PET,nylon,and polycarbonate tend to degrade during processing.Degradation is caused by a loss of molecular weight,which leads to loss of important material properties,especially melt strength and processability.The result is that recycled and reclaimed resins of these types are often limited to applications that do not require high performance properties or,even worse,are rejected as unusable waste.