Self-Adapting Composite Heals Itself

A self-adaptive composite material (SAC) developed at Rice University has both self-healing and reversible self-stiffening properties.

(Postdoc Pei Dong holds Self-Adapting Composite )

The material, called SAC (for self-adaptive composite), consists of sticky, micron-scale rubber balls that form a solid matrix. The researchers made SAC by mixing two polymers and a solvent that evaporates when heated, leaving a porous mass of gooey spheres. When cracked, the matrix quickly heals, over and over. And like a sponge, it returns to its original form after compression.

SAC may be a useful biocompatible material for tissue engineering or a lightweight, defect-tolerant structural component.

In SAC, tiny spheres of polyvinylidene fluoride (PVDF) encapsulate much of the liquid. The viscous polydimethylsiloxane (PDMS) further coats the entire surface. The spheres are extremely resilient, Lou said, as their thin shells deform easily. Their liquid contents enhance their viscoelasticity, a measure of their ability to absorb the strain and return to their original state, while the coatings keep the spheres together. The spheres also have the freedom to slide past each other when compressed, but remain attached.

Everybody knows that the idea of self-healing materials dates from at least 1951 - in this story: Asteroid of Fear, by sf great Raymond Z. Gallun. Consider this unique plastic that can repair itself:

But the wide roof was all the way up, now—intact. It made a great, squarish bubble, the skin of which [a 'transparent, wire-strengthened plastic '] was specially treated to stop the hard and dangerous part of the ultra-violet rays of the sun, and also the lethal portion of the cosmic rays. It even had an inter-skin layer of gum that could seal the punctures that grain-of-sand-sized meteors might make.
(Read more about self-healing plastic)

Fans of the great J.G. Ballard know that he described a bendable, self-healing material in his 1962 short story The Thousand Dreams of Stellavista. Ballard wrote about plastex, a unique building material.

Via KurzweilAI.

Scroll down for more stories in the same category. (Story submitted 1/26/2016)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Material ")

Dune Fans! Metal-Organic Frameworks Make Science Fiction Real
'Dew collectors,' he muttered, enchanted by the simple beauty of such a scheme. - Frank Herbert, 1965.

Fungi-Infused Concrete Repairs Itself
'I noticed that curious mottled knots were forming, indicating where the room had been strained and healed faultily.'- J.G. Ballard, 1962.

3D Printed Graphene Aerogel - So Light!
'... light as cork and stronger than steel...' - Edgar Rice Burroughs, 1929.

Vantablack Now IMMEASURABLY Black
'a black coating now that’s ninety-nine percent absorptive...' - Doc Smith, 1934.



Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.






Current News

Dune Fans! Metal-Organic Frameworks Make Science Fiction Real
'Dew collectors,' he muttered, enchanted by the simple beauty of such a scheme.

Manned Maneuvering Unit From 1984
'The glittering little rocket bolted to the black iron behind him.'

Astronaut Gets Younger In Space
'So what we're looking for now is not an antibiotic - an anti-life drug - but an anti-agathic, an anti-death drug...'

Blockchain Used To Verify Election Results
'Any adult could punch into the phone his or her code, followed by a yes or no.'

IJOP Integrated Joint Operations Platform China's Minority Report?
'All day long the idiots babbled, imprisoned in their special high-backed chairs...'

HushMe Bluetooth Device Reinvents The Hush-A-Phone
'Talking into a hush-a-phone which he had plugged into the telephone jack...'

Ultrathin Brain Needle Developed At MIT
Putting drugs into a selected cubic millimeter within the living brain.

Tesla Semi Truck Now At Work
Why wait? Tesla Semi now hard at work.

Illustris: The Next Generation Of Universe Simulation
'This digital device was ... A machine able literally to contain the Universe Itself...'

Scaly Yet Soft Robotic Snake
Love those robotic sneks.

Cool Tinsley Lunar Unicycle Update
Great update of a timeless classic.

NASA's 'Armstrong' Soft Wearable Upper Extremity Garment
'Exact same articulation as your shoulder joint, and it holds your muscles out of the way...'

Kuri Robot Roams Your Home, Taking Pictures
'Small devices with cameras and sound equipment which could move freely...'

Tiny Rubbery Robot To Take 'Fantastic Voyage'
I think that I will wait for other volunteers for this one.

Svalbard Seed Vault (aka Doomsday Vault) Gets Upgrades
'But they existed in the Life Bank, as did virtually every plant and animal that existed on Old Earth.'

Disney Vyloo Robots With Personality
'Let's build robots with Genuine People Personalities...'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise | - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.