Therefore, the new body armor made of "shear thickening liquid" is usually soft and comfortable. Once cut and stabbed by sharp objects such as knives, or impacted by high-speed bullets and shrapnel, it becomes extremely tough at the moment of impact, and the impact force can be quickly dispersed along the fabric, greatly reducing the pressure per unit area. When the impact force disappears, the "shear thickening liquid" returns to the liquid state and the fabric becomes soft again.
Shear thickening liquid technology was jointly developed by the Synthetic Materials Research Center of Delaware State University and the Weapons and Raw Materials Research Committee under the Army Research Laboratory. Only American armored holding companies were authorized to produce related products. It is reported that the new body armor made of "shear thickening liquid" technology will be put on the market in batches at the end of this year, and each piece will cost 500 to 600 dollars.
Principle:
Free from impact: particles do not interfere with each other, but are liquids.
Impact: Particles collide violently and become solid.
Shear thickening liquid (STF) is the key component of liquid armor, which is composed of polyethylene glycol and silicon particles. Polyethylene glycol is a widely used non-toxic liquid, which can withstand a wide temperature range. Very fine silicon particles (very hard) are another component of STF. This highly mobile liquid can form a material with unusual properties when combined with hard particles.
Eric Waltzer, director of the shear thickening liquid project of the Weapons and Raw Materials Research Council, explained: "When the movement is slow, hard particles can move around, so the shear thickening liquid is liquid, but when the movement is fast, the hard particles collide with each other and hinder each other's movement, so the shear thickening liquid becomes very strong."
Helmets, clothes and boots can do anything.
This new material can also be made into an explosion-proof blanket, covering suspicious packages or unexploded ordnance, and even used on paratroopers' boots, which will harden during collision, thus protecting paratroopers' ankles.
Soft and light as ordinary clothes.
The first batch of new body armor upgraded from "shear thickening liquid" will be officially released. By then, American frontline soldiers abroad will be fully protected.
When you hit it, it will become hard, but when it disappears, it will return to its original state.
"liquid armor" came out at the end of the year.
Light, soft, thin and invincible clothes have always existed only in myths and novels, such as Huang Rong's soft hedgehog armor and animal armor. However, the portability and protection of armor have always been an irreconcilable contradiction. Even the most advanced bulletproof vest at present is not much better than medieval armor in principle. The main protective function is the metal plate inserted inside. Hummer military vehicles also face the same problem. The light armored Hummer has been criticized by the US troops stationed in Iraq for many times. Because of the obvious decline in protection ability, they often weld a few pieces of iron sheets themselves to enhance protection.
The advent of "liquid armor" completely solved this problem. It's like science fiction material. It's usually just ordinary cloth. Once attacked, it becomes extremely tough in an instant, which can spread the impact around and minimize the damage. The production of "liquid armor" is also very simple, that is, soak the common "Kevlar" bulletproof fabric in the newly developed nano "magic water"-"shear thickening liquid", and you're done.