Japanese researchers develop plastic with the power to self-repair

According to The Asahi Shimbun, Japanese researchers said they have found a way to create “self-repairing plastics” that can be used in smartphones, cars and other products and reduce the amount of waste now fouling the planet.
Takuzo Aida, a chemistry professor at the University of Tokyo, and his colleagues said a tiny amount of a specialized agent mixed into ordinary plastic can automatically heal cracks and fissures.
“The technique could lead to the development of a sustainable made-to-last plastic that does not need to be discarded or recycled,” Aida said.

https://www.asahi.com/ajw/articles/14586016