How plastic welds retain a molecular 'memory' of their former surfaces to strengthen pipe joints

Phys.org reports that welding plastic is a critical part of engineering, especially for preventing leaks in underground water and gas pipes. The outlet says a properly welded joint in polyethylene pipe can be just as strong as the pipe itself, if not stronger, but the reason for that strength has remained a mystery.

Listen to this story

Hear this and more stories in a personalized audio briefing.

Open The Chonkerton