Plastic, Heal Thyself
Kirt's Cogitations™ #146

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Plastic, Heal Thyself

Modeled after the way the human body heals itself, a new breed of plastics is on the horizon that can not only heal micro-cracks, but prevent the propagation of a crack in progress. Headed by a team at the U. of Illinois, the self-healing plastics incorporate small capsules that release a healing agent when a crack forms. The agent travels to the break through small capillaries that simulate how blood flows to a wound. Polymerization is triggered automatically when the healing agent makes contact with a catalyst embedded in the plastic. The reaction forms a polymer to repair the broken edges of the material. The rounded capsules act as stress relief points to arrest crack propagation.

A huge collection of my 'Factoids' can be accessed from my 'Kirt's Cogitations' table of contents.

Topical Smorgasbord, another manifestation of Factoids, are be found on these pages:

| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 |

All pertain to topics that are related to the general engineering and science theme of RF Cafe.