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NP99
23rd June 2014, 11:06 AM
The pioneering woman scientist who developed Kevlar, the super-strong fibre used in protective body armour, has died at the age of 90.

Stephanie Kwolek was carrying out research at the giant US chemical firm DuPont when she made her discovery in 1965.

She had been trying to create a fibre to reinforce car tyres that was lighter weight and more fuel efficient than the metal previously in use.

The liquid crystal polymer she created became Kevlar, which is five times stronger than steel and extremely lightweight.

As well as body armour and other protective clothing, Kevlar is used in products ranging from sports gear to fibre-optic cables.

DuPont described Ms Kwolek as a pioneering woman scientist whose discovery has saved thousands of lives.

She died in a hospice, media sources said, citing her friend and former co-worker Rita Vasta, who did not give a cause of death.

"We are all saddened at the passing of DuPont scientist Stephanie Kwolek, a creative and determined chemist and a true pioneer for women in science," DuPont CEO Ellen Kullman said in a statement.

"She leaves a wonderful legacy of thousands of lives saved and countless injuries prevented by products made possible by her discovery."

In 1996 Ms Kwolek was awarded the National Medal of Technology and Innovation.

ABC/wires

Hardyards
23rd June 2014, 12:14 PM
Thanks Np99
RIP Stephanie, would love to have manufactured a set of bash plates from Kevlar (well, Para-aramid fibre anyway). Completed a composite course and part of that was to lay-up para-aramid reinforced panels, and damage repairs. Never got around to making the moulds.........

Gecko17
23rd June 2014, 11:23 PM
RIP Stephanie, I and many of my friends and colleagues are indebted to you and your invention.

On another note...Sourced from Wikipedia.

During the early Musket Wars and later New Zealand wars, Māori used large, thickly woven flax mats to cover entrances and lookout holes in their "gunfighter's pā" fortifications. Some warriors wore coats of heavily-plaited Phormium tenax, which gave defense characteristics similar to a medieval gambeson, slowing musket balls to be wounding rather than deadly.

Kiwi ingenuity!