Recycling Property Changes

This lecture by the instructor covers the property changes that occur during recycling processes, focusing on aspects such as molecular weight, viscosity, and toughness. It discusses the degradation laws, material properties, and models used to understand these changes. Case studies on PET and short-fiber reinforced composites are presented, highlighting the impact of recycling on material properties. The lecture also delves into closed-loop recycling, emphasizing the need to model the properties of recycled materials accurately. Various factors affecting the recycling process, including process stability and composite strength, are explored. The lecture concludes with insights on fiber length degradation and the challenges and methods involved in recycling different types of plastics.