News / Science & Technology

Scientists Create Plastic That Repairs Itself

FILE - Illinois researchers have developed materials that regenerate when the restorative material is delivered through two, isolated fluid streams (dyed red and blue), and the liquid immediately gels and later hardens. (Ryan Gergely)
FILE - Illinois researchers have developed materials that regenerate when the restorative material is delivered through two, isolated fluid streams (dyed red and blue), and the liquid immediately gels and later hardens. (Ryan Gergely)
Jessica Berman
Modeled on the blood vessels that make up the human circulatory system, scientists have created a plastic material that repairs itself. Researchers believe self-regenerating plastic could be used in many ways.

Imagine a sheet of plastic with a tear or hole in the middle; suddenly, the breach begins to fill in. Within a few seconds, the hole is completely covered with new plastic material. In a couple of hours, the plastic is as hard as ever.

Central to this self-regeneration process, according to inventor Scott White of the University of Illinois Urbana, are parallel, vascular-like channels through which liquid repair material is funneled onto the damaged plastic.  

A big challenge in the development of the self-regeneration system was gravity, which would make the repair material leak out. Scientists developed two chemicals, though, which mix and congeal immediately after reaching the damage site. The material then fills the hole or crack in the plastic by folding on top of itself until the entire breach is patched.

Watch related video report
 



White said scientists got the idea from the human circulatory system and the body’s use of platelets to repair a wound.

“If we had a major gash, there’s a possibility we could bleed out," he said. "But if that cut is not too severe, we should see a clot form and then the repair process takes place underneath that clot. And this is the same kind of principle here.”

Self-healing plastic could be used in a number of ways, White said. For example, it could be used as a protective coating on metal.

“If you had a regenerative coating in this case, you could basically walk away and be assured there is always going to be a coating on that substrate [material to be protected] and never have to worry about a corrosion process happening anymore,” he said.

White, a professor of aerospace engineering, said that might be useful on the deck of ships, which commonly get scrapped and dinged, causing rust to form, or as a coating on car bumpers to repair dings and scrapes.  

White said the research is in the early stages; currently, the repair is visible. In time, however, he said it will be difficult to see where the damage was after the plastic regenerates itself.

You May Like

EU Court Fines Poland for Hosting CIA 'Black Sites'

Ruling is first time a court has acknowledged suspects were held and tortured at the sites, under US program launched following the 9/11 terrorist attacks More

Migrant Issues Close to Home Spur Groups to Take Action

Groups placing water, food in the desert, or aiding detainees after release, have one common goal: no more deaths of migrants crossing illegally into the US More

Video At AIDS Conference, Prevention Pill Stirs Excitement

Truveda shows promise, spurring debate over access and other approaches More

This forum has been closed.
Comment Sorting
Comments
     
by: Anonymous from: UK
May 12, 2014 3:51 PM
So what about it's biodegradable properties?

In Response

by: W
May 13, 2014 5:55 PM
Not biodegradable, but then again it wasn't designed to replace water bottles. We're talking about expensive, hard to place structural materials for aerospace.

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Treatment for Childhood Epilepsy Heats up Medical Marijuana Debatei
X
Shelley Schlender
July 24, 2014 6:43 PM
In the United States, marijuana is classed as an illegal drug by the federal government. But nearly half the states have legalized it, to some degree. Proponents say some strains of marijuana might have exceptional health benefits, for treating pain or inflammation in chronic conditions such as cancer, multiple sclerosis and epilepsy. Shelley Schlender reports on a strain of medical marijuana developed in Colorado that is reputed to reduce seizures in childhood epilepsy
Video

Video Treatment for Childhood Epilepsy Heats up Medical Marijuana Debate

In the United States, marijuana is classed as an illegal drug by the federal government. But nearly half the states have legalized it, to some degree. Proponents say some strains of marijuana might have exceptional health benefits, for treating pain or inflammation in chronic conditions such as cancer, multiple sclerosis and epilepsy. Shelley Schlender reports on a strain of medical marijuana developed in Colorado that is reputed to reduce seizures in childhood epilepsy
Video

Video Airbus Adds Metal 3D Printed Parts to New Jets

By the end of this year, European aircraft manufacturing consortium Airbus plans to deliver the first of its new, extra-wide-body passenger jets, the A350-XWB. Among other technological innovations, the new plane will also incorporate metal parts made in a 3-D printer. VOA's George Putic has more.
Video

Video Death Toll From Israel-Gaza Conflict Surpasses 700

Gaza officials say a shelling hit a compound housing a United Nations-run school in the Gaza Strip, killing more than a dozen people, during an Israeli offensive in the area. Heavy fighting between the Israeli military and Hamas militants continued on Thursday, pushing up the death toll. So far, more than 730 Palestinians and 35 Israelis have been killed in the conflict. VOA's Scott Bobb has the latest from Jerusalem.
Video

Video AIDS Conference Welcomes Exciting Developments in HIV Treatment, Prevention

Significant strides have been made in recent years toward the treatment and prevention of HIV, the virus that causes AIDS. This year, at the International AIDS Conference, the AIDS community welcomed progress on a new pill that may prevent transmission of the deadly virus. VOA’s Anita Powell reports from Melbourne, Australia.
Video

Video Israel Targets Gaza Supply Tunnels

The Israeli military has launched a ground operation in Gaza to destroy the myriad tunnels that may have been used to smuggle weapons to Hamas. VOA's Zlatica Hoke reports that could mean more hardship for the people of Gaza, who obtain some of their essential supplies through these underground passages
Video

Video Researchers Target Low-Cost Avatar Technology

Scientists at the University of Southern California Institute for Creative Technologies say 3-dimensional representations could revolutionize social media. Elizabeth Lee has more from Los Angeles.
Video

Video IAEA: Iran Turns its Enriched Uranium Into Less Harmful Form

Iran has converted its stockpiles of enriched uranium into a less dangerous form that is more difficult to use for nuclear weapons, according to the United Nations’ Atomic Energy Agency. The move complies with an interim deal reached with Western powers on Iran's nuclear program last year, in exchange for easing of sanctions. Henry Ridgwell reports for VOA from London.
Video

Video In Cambodia, HIV Diagnosis Brings Deadly Shame

Although HIV/AIDS is now a treatable condition, a positive diagnosis is still a life altering experience. In Cambodia, people living with HIV are often disowned by friends, family and the community. This humiliation can be unbearable. We bring you one Cambodian woman’s struggle to overcome a life tragedy and her own HIV positive diagnosis.

AppleAndroid