Most Kevlar vests are rated for a service life of 5 years. Bulletproof vests and ballistics materials may be damaged more quickly if they are constantly used, used outdoors where they may be exposed to ultraviolet rays , or not kept clean since debris may penetrate the material, causing it to weaken.
In addition, Kevlar vests are compromised if they have been struck by a bullet. Since a bullet strike is strong enough to tear fibers though it may or may not penetrate the material, depending on the caliber of the bullet and the situation , these fibers cannot be repaired, and the material is compromised.
While Kevlar may not be strong enough as a ballistics material after half a decade, it may be reclaimed and used for other purposes. The materials of a vest, for example, may be reclaimed and used to create tires, gloves, or other materials. Here at Fiber Brokers, we specialize in breaking down body armor, reclaiming as much useful material as possible, and recycling that material to give it a second service life as a new product.
Kevlar is just one of many protective materials that we recycle. We also purchase Kevlar scrap from manufacturers, in order to recycle the material and repurpose it into other products.
What Is Kevlar? Tensile Strength Tensile strength is the maximum stress a material can handle before separating when the material is pulled. Flexibility As a fibrous material, Kevlar enables manufacturers to create products that are flexible, yet strong.
Ballistic Resistance Kevlar is an ideal body armor material, since its fibers are incredibly difficult to break again, thanks to its tensile strength. It is available for use in many different types.
Kevlar absorbs vibration, has high tensile strength to weight ratio and withstands impact. It has superior resistance to flames, cutting, most chemicals and is stronger at low temperatures. Additionally it offers a high modulus, dimensional stability and low thermal shrinkage. Kevlar fibers are based on poly-paraphenylene terephthalamide, a rigid molecule that makes it easier to realize a fully extended, or straight, chain configuration.
Also, these rigid molecules will even arrange in solutions. Such solutions are called liquid crystalline, which underscores their good organization. Poly-paraphenylene terephthalamide molecules behave like uncooked spaghetti, whereas other, less rigid molecules behave more like cooked strands of spaghetti.
Thus, the nature of the molecule makes it easier to achieve the desired aligned structure. In addition, poly-paraphenylene terephthalamide strongly resists high temperatures and flames. Offering strength under heat, Kevlar protects against thermal hazards up to degrees Farenheit.
This combination of unusual properties makes Kevlar useful for a broad range of applications, such as ballistic vests, cut-resistant gloves and blast and flame barriers. Kevlar has also boosted sports gear performance. Applications in that vein include bicycle tires that are virtually flat-free and puncture-resistant; running shoes that maximize the energy output of runners; boats that are lighter and more damage-tolerant; and durable lightweight sails that tolerate high winds and saltwater.
Originally published on September 30, Sign up for our email newsletter.
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