Ice and snow disasters sometimes make people want to sigh, helpless. However, researchers from the University of Houston in the United States have recently developed a new anti-icing material, which is expected to completely solve the problem of ice formation on surfaces such as aircraft and cables.
Researchers published a paper in the international materials journal "Materials Horizons" that they proposed a new physical theory called stress localization to change and predict the performance of new materials. Based on these predictions, they created a durable silicone polymer coating that prevents icing on any surface.
The freezing and breaking of power supply lines caused by rain and snow disasters have caused widespread outages. The dangers of icing are not limited to this. In February 2018, a Russian An 148 passenger plane crashed because the airspeed tube icing caused the pilot to obtain incorrect speed information. All 65 passengers and 6 crew members were killed. It is reported that the annual loss caused by icing in the United States is as high as several billion dollars.
Hardy Gassemi, one of the main authors of the paper, said that he had previously developed several new anti-icing materials, but like other existing materials, it cannot completely overcome the problem of ice sticking to the surface, and the mechanical structure and environmental impact are durable Sexual problems. Stress localization theory enables new materials to avoid this situation. According to the theory, the contact surface of this material with ice will crack, causing the ice layer to fall off. The force required to cause cracks is very small, for example, the flow of air on the surface of the aircraft can trigger the flight. Tests show that this material can be sprayed on any surface without changing the aerodynamic performance of the aircraft, and the structure is stable and durable, not affected by ultraviolet light, and a spray can last for more than 10 years.
Bill Cook, the corresponding author of the paper, said that the new theory points out a way to reduce trials and errors in the research of new materials, which is consistent with the development of materials science in the direction of physics. Enter the material properties you want. The new theory will tell you what materials need to be synthesized. This concept can also be used to develop new materials with excellent antibacterial properties or other characteristics. (Intern reporter Hu Dingkun)
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