Rainwear made of cloth with the property of self-healing


15/10/2011

The first step has been made by scientists towards the development of waterproof fabric clothing that can repair itself by eliminating various injuries. In collaboration with academic researchers and colleagues from eight countries in the field of industrial, Geren Susie (Susie Jahren) and group project work to develop the future of clothing for professional fishermen and seafarers.

Halfway to the implementation of the project EU "Safe @ Sea," a group of SINTEF (the largest independent research organization in Scandinavia) had high hopes for the successful completion of the first in the world of clothing fabric covering is automatically patched small holes or cuts that form on the surface layer of water-proof work clothes.

"We have proven that we have developed the principle works in practice. Holes and cuts or scratches that we made on pieces of tissue in laboratory tests, fully closed" - said enthusiastically Geren. The research team worked with a plastic material polyurethane, which is used when it is in a liquid state to cover the surface of the tissue, which is made waterproof clothing, then it hardens and protects the fabric from getting wet.

In order to achieve the effect of "samopochinki", SINTEF researchers added micro capsules containing substances such as glue coating. "If the coating is torn, capsules, are in a damaged area burst. Thus, the material contained therein to seal extends outwardly and solidifies when it comes into contact with air and water, formed in this way eliminating damage" - Dzheren explained.

Not so long ago, with properties of self-healing materials were considered the stuff of science fiction. However, scientists in many parts of the world are now working on the development of plastic structures and plastic covers to ensure the protection of metals against corrosion. SINTEF Group is currently conducting a study of this type in the automotive industry, but until now no one has yet produced textiles, which is able to repair itself.

Geren explained that the bonding in compounds created in the laboratory tests are not very strong from a mechanical point of view, but it is possible to improve the durability through the use of other types of "glue" and increase the number of capsules. "However, in the future, we are waiting for a number of other problems, and a lot of research before we can say anything specific about the effectiveness of this method. We do not yet know what will happen if the length of the cut will reach more than a few millimeters or if the rain will wash away all the glue "- she said.

The development of the project EU "Safe @ Sea" will continue until the end of 2012. Work is conducted in concert with the organization SINTEF and the Norwegian company under the control of Helly Hansen. Hilda Fervik (Hilde F ?revik), coordinating work in SINTEF, said that the project of self-healing materials is the tendency of researchers to find out, embodying his ideas into practice, the limit of possibilities in the field of technology today.

"In this project, we are also working on the development of durable coatings completely devoid of the probability of cuts, holes or other damage. Clothes that we design for fishermen also includes a built-in buoyancy. We are also going to introduce the" man overboard "in clothes of this type as an alarm to help the Mariners to respond quickly in the event of an incident. "

Original: Sciencedaily Translation: M. Potter


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