For the first time, the 1st grade of the US Air Force Academy Haley Weir thought about creating an ultra-duty bullet-knitted material in the chemistry lesson in 2014. Then the class was proposed to combine three materials that could withstand a flying pool.
In particular, students were offered a combination of epoxy, Kevlar and carbon fiber-materials that each individually gain rigidity when a bullet hit, but, for some reason, they were destroyed for some reason.
This prompted Haley to try to create alternative combinations of materials with greater strength. One of the leading specialists of the chemistry Academy, Professor Ryan Burke, invited her instead of epoxy resin, hardening in the process of drying, creating a layer from the so -called Newtonian liquid, which changes viscosity depending on the magnitude of the forces that affects it. This means that the liquid retains its viscosity exactly until the moment when the bullet hit it.
The idea to use a layer of liquid, Kevlar and carbon fiber as bulletproof materials is not new, but no one before united them together. As a result of numerous experiments, it was possible to “collect” the best option with maximum strength. The material was fired from 9-mm 40 Smith & Wesson and 10.9-mm 44 Magnum. As a result, in the first case, the bullet was stuck only in the last layer, and the larger bullet from 44 Magnum did not even go through the first layer.
The creators of the new over -duty material hope that it will soon become the basis of new body armor, armored vehicles, protective anti -pole and anti -osocolous tents.
Source — US Air Force