Скачать или смотреть 4.5_Module 4 Demo

Polymers and their influential factors – crosslinking and free volume - are up for discussion in this video. Join Andrew Whelton, a Professor of Engineering at Purdue University, as he brings into focus the long-range interactions possible due to polymers' long chains. Watch as Professor Whelton explains the importance of crosslinking in the manufacturing process of polyethylene (HDPE) pipes and PEX pipes, which affects their temperature resistance and flexibility. Further, understand the significance of free volume – the extra empty volume in polymers. Learn how it dictates the polymer's tendency to melt or bend, and delve into the unique elastic yet viscous nature of polymeric materials. Through examples like silly putty, appreciate the viscoelastic behavior of polymers.

Explore this video and others as part of Professor Whelton's course "Plastics in Infrastructure and the Environment", presented by Purdue University Online. To access more such courses from Purdue University Online, visit online.purdue.edu