Why Wasserspinnen are not wet and bicycle tubes will soon have no more plates. Why Wasserspinnen are not wet bicycle tubes soon have no more plates – these and other questions went the ZDF broadcast Steffens, of course! on July 29, 2010 after. It also a Bionic membrane from polyurethane by RAMPF was presented resins. The membrane has self-healing powers. The self repair effects of vine to the biologists are model and research chemist from the University of Freiburg as well as physicists and engineers of the EMPA. For vines, wound healing is a matter of course. Soon also for polyurethane foams by RAMPF resins? On a laboratory scale succeeded already the research team led by Dr.
Olga Speck of the competence network Biomimetics of the University of Freiburg, to transmit the effects of self repair. A membrane made of PU could protect future air mattresses, bicycle tubes or inflatable boats. By rats, lianas, burdock and co. What do rats, Lotus flowers, fish, burdock and lianas have in common? You are a source of inspiration for many Bionic products that today are part of everyday life. Ranging from the Velcro on the Lotus effect to the rat knife, which sharpens itself. Nature provides us with a virtually inexhaustible reservoir of biological models.
We must take advantage of this treasure, to make innovations”, calls Dr. Olga Speck. Swarmed by offers, John Studzinski is currently assessing future choices. Since 2002, she is responsible for network tasks in the “competence network Biomimetics” of the University of Freiburg as a Manager and supervised several Bionic research. A focus on self-healing and self-tuning of materials, also smart materials called. “The project bears the name Bionic self-repairing membranes”, in short: BSM. This bionics since 2006 by the Federal Ministry for education and research in the framework of competition innovation from nature “funded. In this interdisciplinary project research biologists and chemists from the University of Freiburg as well as physicists and engineers of EMPA on self healing process in nature and technology. Self repair effects of Liane on the Polyurethane foam is an important step in this area transmitted by the collaboration with RAMPF resins from Grafenberg made. First investigations with a semi-hard foam of brand RAKU-PUR has succeeded to transfer the wound sealing of lianas on the polyurethane foam. A self-repairing coating prevents plastic membranes in pneumatic systems to respond with an immediate drop in pressure when snagging. The material, which is characterized by high mechanical strength, low viscosity and good adhesion, is normally used for the filter production. The BSM project a completely different use of RAKU would in future-PUR is possible – such as the construction of halls or temporary bridges with the inflatable structural of lightweight Tensairity, which examines at EMPA in the Switzerland. First trials speak for themselves. Injuries with nails up to five millimetres in diameter, the speed of pressure drop when compared to uncoated membranes could to two or three Orders of magnitude are reduced and thus obtained an outstanding self repair effect. Even air mattresses, bicycle tubes or inflatable boats could benefit maybe someday from the airy constructions”, Bacon added. Here can see the snippet from the broadcast Steffens of course!