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Nov 1, 2008

France to develop "self-healing" rubber

Beloved dress was accidentally Guapo, hampering the naughty children of valuable toys, people often encounter in life that separate interests, but it can only sigh, "It is a pity."

France 20, scientists announced that they developed after cutting through a "self-healing" a new type of rubber. This technology will enable the clothing and toys may become a self-repair. The study results published in the latest issue of British "natural" weekly.

"Self-healing" rubber

French National Center for Scientific Research and private chemical company Arkema researchers said they developed a new type of rubber. Such polymers damaged in an environment of 20 degrees Celsius for about 15 minutes after extrusion will be able to "self-healing", the scientific community has been described as a "magic" of the new materials.

A typical traditional rubber by the combination of cross-long chain polymer molecular structure, able to stretch after the restoration of the original shape.

"Self-healing" rubber polymers used by elements of the smaller of two different elements from polymer, rubber, but with the flexibility the same as the traditional rubber. These molecules, a molecule with two or three elements connected to bond, constitute a network structure.

Compared with traditional rubber, the structure of the bond easier to break. When the rubber was cut off, Duan Liechu bond was broken, but they will provide a atomic "glue" to link up to some of the fault.

Value

"Self-healing" of synthetic rubber components include common vegetable oil extracted from the synthesis of fatty acids and step-by-step process of accession to the middle of Diethylenetriamine and uric acid. Diethylenetriamine and uric acid are low-cost, common chemicals.

These chemical compounds can be 8 degrees under the glassy become translucent plastic, like the performance of soft rubber, can be damaged before stretching to 5 times the original length. However, with traditional rubber, "self-healing" rubber can be broken at room temperature without heating can be squeezed even harder to repair.

"Self-healing" rubber reprocessing up easier.

The invention of the leaders, the French National Center for Scientific Research of soft material and chemical laboratory researcher Luziweike Leibler said: "If you to the wall of the rubber joints bored, drilled hole will automatically patch."

"This new technology will enable the joint system of rubber or rubber-processed materials broken after repair. Moreover, with the breakdown of the healing process can be repeated many times," Leibler said.

Market

Arkema Inc. researcher J. Manuel Hidalgo said that the National Center for Scientific Research and Arkema has started to develop other "self-healing" materials, including self-Guapo after what he had said the painting.

Hidalgo told Agence France-Presse reporter, the application of "self-healing" materials of the first batch of products will be "one to two years after" the market.

"Nature" published at the same time, "self-healing" materials of the commentary. The article, synthetic materials scientists and尤斯廷米纳Tianzhuo phase three, when Spain to see the invaders aztec in the game can be played in a rebound of the rubber ball, they want this ball from a certain supernatural Forces of evil.

In the article, they wrote, "the Spaniard to imagine how it will react if they see the rubber ball was cut in two and a half later, as long as people simply damaged the Extrusion two halves together, and rubber ball as good as new." Today's "self-healing" rubber will be considered a "magic."

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