Search results
Results From The WOW.Com Content Network
Stephanie Louise Kwolek (/ ˈ k w oʊ l ɛ k /; July 31, 1923 – June 18, 2014) was a Polish-American chemist best known for inventing Kevlar (poly-paraphenylene terephthalamide). ). Her career at the DuPont company spanned more than 40 ye
Kevlar (para-aramid) [2] is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, [ 3 ] [ 2 ] [ 4 ] the high-strength material was first used commercially in the early 1970s as a replacement for steel in racing tires.
Kevlar was initially used as a replacement for steel-belting in tires, and later for use in ropes, gaskets, and automotive and aviation parts. [ 1 ] [ 3 ] In 1971, Shubin, who was then the Director of Science and Technology for the National Institute for Law Enforcement and Criminal Justice, [ 4 ] suggested using Kevlar to replace nylon in ...
In the 1980s, Dr. Jacob Lahijani, Senior Chemist at DuPont, invented Kevlar 149 and was highlighted in the "Innovation: Agent of Change. [77] Kevlar 149 is used in armor, belts, hoses, composite structures, cable sheathing, gaskets, brake pads, clutch linings, friction pads, slot insulation, phase barrier insulation, and interturn insulation. [78]
DuPont first invented Kevlar in 1965 and its Maydown manufacturing facility is one of only three places in the world where Kevlar is produced. The DuPont site at Maydown is now the lead partner in the University of Ulster 's Biodiversity Action on Industrial Site (BAIS) project that aims to enhance biodiversity on land close to industrial activity.
The fiber is an evolution of the original Kevlar fiber. The following quotes summarize Kevlar KM2's properties. "DuPont created Kevlar KM2 to achieve the performance goals defined by casualty reduction testing for the United States Department of Defense. Today it is used extensively for fragmentation protection in the U.S. military. Helmets and ...
1971: The first space station, Salyut 1, is launched. 1971: IBM developed and released the world's first floppy disk and disk drive. [504] 1972: The first video game console, used primarily for playing video games on a TV, is the Magnavox Odyssey. [505] 1973: The first fiber optic communication systems were developed by Optelecom. [506]
The Torino scale, invented by Richard P. Binzel in 1999, is a method for categorizing the impact hazard associated with near-Earth objects (NEOs) such as asteroids and comets. It was intended as a tool for astronomers and the public to assess the seriousness of collision predictions, by combining probability statistics and known kinetic damage ...