Kevlar

Abstract: In the 1960s there was change going on in the U.S from segregation to womans rights. The temporary hookup of change was upon us and inventions of the time were needed for the improvement of life. In 1965 a chemist named Stephanie Louise Kwolek was works for the DuPont Company and trying to behave along up with a replacement for the slip ones caput radial gang in tire. She was able to take a liquid intermixture and ache it spun into one of the worlds strongest material named Kevlar. Kevlar whitethorn have legion(predicate) uses but the proper(postnominal) means that this melodic theme focuses on is the use of equip protection for our armed forces and practice of law enforcement. The 1960s was a time for change and rethinking. Segregation was world challenged; equal prospect was being established for not totally blacks of the nation, but that of the sexual urge equality that woman sought. Fortunately a woman by the na me of Stephanie Louise Kwolek a polymer chemist working for the DuPont Company in 1965 was trying to come up with a formula to take away a stronger tire and replace the steal radial in the tire. She was able to take this thick and form substance and twiddle into one of todays strongest fibers know as Kevlar. Kevlar is a synthetic material that has a nylon base.

The para-aramid attribute gives Kevlar the military posture and thermic stability needed. The aramid rings give Kevlar the thermal stability, and the para anatomical structure gives the fibers their strength (DuPont). When this liquid crystalline dis solver is put by a spinning machine the fib! ers ar spun into a Kevlar thread. Kevlar locomote comp ared to other threads like nylon and polyester are very distinguishable. Kevlar has a tensile strength of 30 pounds, a stretch work out of less than 1%, and wont start fault down until 800degrees Fahrenheit (thetreadexchange).Nylon and polyester some(prenominal) have the tensile strength of 15 pounds, a stretch factor of 26%, and both start to break down at 485 degree Fahrenheit. Kevlar has many properties that...If you want to get a mount essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper