Kevlar
Kevlar, the trademark name by DuPont (Sci. & Inv. Enc., 1352), was invented in 1965 by Stephanie Kwolek. A Kevlar woven millibar (shown on project board) has 18,000 pounds of strength, which is the strongest material in the world! Kevlar can be five through fifteen times stronger than steel, depending on the form of the product. Kevlar is also in body armor, meaning it is saving lives. This is definitely a very important composite (New Necessities).There are three types of Kevlar: rubber industry use, Kevlar 29, and Kevlar 49 (Sci. & Inv. Enc., 1352). The rubber industry uses Kevlar for reinforcement. When Kevlar was first produced in 1972, it was used for the rubber products. One example would be the radial tire belts. Instead of using steel cord, Kevlar cord replaced it. The results were very satisfying. A reduction in weight meant that the fuel economy was better, and the tires were also much quieter. Kevlar was the answer to the challenges of designing rubber hoses and belts for
There are many applications for Kevlar. One of the most known uses is armored protection. Just a few layers of Kevlar can stop a 9mm bullet. The military has found many uses for Kevlar and is bound to find more. About 75 percent of all fiber-optic cables have an outer covering of Kevlar to increase strength and provide insulation since it is non-conductive. One type of rope, called Parafil, has a Kevlar core and another material on the outside, capable of holding 2.972 million pounds with a stretch elongation of 2.5 percent. This is one of the strongest synthetic cables over made. Kevlar, being flame-proof, is used by people with jobs needing this protection (New Neccessities). 3) New Necessities "Culver." Brochure, 1999 Kevlar is resistant against many chemical agents such as acids, bases, salt solutions, organic solvents, and other chemicals. This high-strength synthetic fiber is put in the aramid fiber group. The substances used for fiber forming are long strands, and produced by p-phenyl
Some common words found in the essay are:
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Approximate Word count = 681
Approximate Pages = 3 (250 words per page double spaced)
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