Aerogel Body Armor

Abstract

The invention provides an aerogel bulletproof vest. The aerogel bulletproof vest consists of a bulletproof fiber layer, a first bulletproof plate layer, a first aerogel layer, a second bulletproof plate layer and a second aerogel layer which are sequentially arranged from outside to inside; the layers are adhered to one another through an adhesion agent; the first bulletproof plate layer and the second bulletproof plate layer are spliced by a plurality of bulletproof blocks; the bulletproof blocks of the first bulletproof plate layer is open-cell foam metal blocks; the bulletproof blocks of the second bulletproof plate layer are close-cell foam metal blocks; the porosity of the second aerogel layer is smaller than that of the first aerogel layer; the thickness of the first aerogel is 3-5 mm; and the thickness of the aerogel layer is greater than 8 mm. According to the aerogel bulletproof vest, aerogel is combined with the foam metal plate blocks by adopting a unique structure, so that the integral bulletproof performance is effectively improved on the basis of certain smoothness.

Description

technical field [0001] The invention relates to a body armor, in particular to an airgel body armor. Background technique [0002] Body armor, also known as bulletproof vest, bulletproof vest, bulletproof vest, bulletproof clothing, individual body armor, etc., is used to protect the human body from bullets or shrapnel. Body armor is mainly composed of two parts: a jacket and a bulletproof layer. Clothes are often made of chemical fiber fabrics. The bulletproof layer is made of metal (special steel, aluminum alloy, titanium alloy), ceramic sheet (corundum, boron carbide, silicon carbide, aluminum oxide), glass fiber reinforced plastic, nylon (PA), Kevlar (KEVLAR), ultra-high molecular weight polyethylene Fiber (DOYENTRONTEX Fiber), liquid protective materials and other materials constitute a single or composite protective structure. The bulletproof layer can absorb the kinetic energy of bullets or shrapnel, and has obvious protective effect on low-speed bullets or shrapne...

AI Technical Summary

Problems solved by technology

The patent literature of CN1981925B mixes the silica sol modified by surfactant with titania sol to make titania / silica aerogel, but the strength and flexibility of this aerogel are very poor, and the raw materials are expensive, and the cost is relatively high. high

However, this body armor is too simple and heavy. This kind of hard plate body armor cannot effectively buffer the kinetic energy of the bullet when it is impacted by the bullet, so the indirect damage to the human body will be greater.

If the bulletproof plate (or slat) is directly combined with the airgel layer, although its bulletproof performance has been improved, it is far from meeting the bulletproof requirements for bulletproof vests for armored vehicles.

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