Stephanie Louise Kwolek (July 31, 1923 – June 18, 2014) was an American chemist, whose career at the DuPont company covered over forty years.[1] She is best known for inventing the first of a family of synthetic fibers of exceptional strength and stiffness: poly-paraphenylene terephthalamide—better known as Kevlar.[2][3] For her discovery, Kwolek was awarded the DuPont company's Lavoisier Medal for outstanding technical achievement. As of June 2014, she was the only female employee to have received that honor.[4] In 1995 she became the fourth woman to be added to the National Inventors Hall of Fame.[5] Kwolek won numerous awards for her work in polymer chemistry, including the National Medal of Technology and the Perkin Medal.[6]
Inventor of kelvar
what is kelvar?
Kevlar® is a material formed by combining para-phenylenediamine and terephthaloyl chloride. Aromatic polyamide (aramid) threads are the result. They are further refined, by dissolving the threads and spinning them into regular fibres. When woven, Kevlar® forms a strong and flexible material. If layers of the woven Kevlar® are combined with layers of resin, the resulting ‘rigid’ material is light and has twenty times the strength of steel. It is also superior to specialist metal alloys. However, Kevlar® is expensive due to the demands of the manufacturing process and the need for specialist equipment.
KELVAR
MAY HER SOUL REST IN PERFECT PEACE
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