Incredible new polymer that heals itself with 97% efficiency.

Spanish scientists, not for nothing called the "Terminator" they developed a polymer. Like the T-1000, torn to shreds, it is able to recover spontaneously and independently without any external intervention.

Scientists have already achieved that the nanoparticles themselves collected in a certain order , and even created a microchip, which itself can be restored. But this polymer is the first of its kind.

This is a breakthrough that can ultimately be used to create materials that improve the safety and durability of plastic parts in electronics, cars and homes.
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In this video, you can observe how a solid cross-linked elastomer (made from polyurea and polyurethane) is cut in half, and then completely restores its integrity.

The material behaves like velcro, showing 97% recovery efficiency (Wow !!!) for just two hours. Even after cutting, the material “heals” itself to a state in which it cannot be damaged even by strong stretching.

To create a "miracle-plastic" researchers used thermosetting materials. The ability to heal they give aromatic disulfides, which interacting at room temperature causes regeneration.

Read the full study: Catalyst-free room-temperature self-healing elastomers based on aromatic disulfide metathesis.

Update: As suggested by the ru1z, the reduction reaction occurs due to the restructuring of SS bonds (non-catalytic disulfide metathesis) and the reorganization of the urea fragments as they approach. In the polymer (initial uncut), the cross connection (exchange) of SS bonds occurs continuously.