Plastics with self-healing capabilities are now available on the market in a small area, but current repair capabilities can only solve minor scratches and subtle cracks, but recent advances in this area seem to have given the technology a A major leap forward. Recently researchers from the University of Illinois have developed a plastic that can not only automatically repair creases, but even larger cracks and holes can be regenerated.
This plastic can automatically repair creases, even including larger cracks and holes.
"Although we have demonstrated this inanimate feature of self-repair, the new synthetic material system reminds us of self-repair of the living system. They are very similar," explains the team's chemist Jeffry Moore. The head of the research team is Scott White, a renowned professor of aerospace engineering.
This new self-healing technology will become very useful in everyday life, such as broken car bumpers and some very difficult maintenance space. The team used a mixed gel-like chemical called "vascular delivery" and filled the interior of the plastic with tiny pipes. These chemicals continue to flow inside the material, just like the human blood. When the plastic breaks, the two gel materials will rapidly flow out and mix together, and will quickly harden under the action of air to achieve the purpose of repair, and maintain the integrity of the plastic structure.
"We must consider factors other than renewable, such as gravity," Professor White said. "The active fluids we use are gelled very quickly, and they start to harden after they are released. If it isn't repaired, the fluid in the damaged area will flow back, just like humans will bleed. It will remain in place until the gel is formed." Liquid state, but so far we have not found a structural material that allows us to continue to inject new liquids into the plastic through tiny blood vessels."
Currently, the technology has passed tests on thermoplastics and thermosetting materials, and has successfully repaired a hole shot by a person who performed the experiment. The future research team hopes that this substance can be added to different chemical materials according to demand.
"For the first time, we demonstrated renewable materials that are repaired by polymers. This is the key," Professor White said. "Before this success, if a piece of plastic breaks, it can only be thrown away. Now through our experiments it has been proved that this kind of self-healing technology can be used to recover."
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