Stronger Than Steel

Many inventions are renowned for their role in improving quality of life or for helping people. Stephanie Kwolek contributed to both with her invention of Kevlar®. At first, Kwolek wanted to study medicine. After earning a degree in chemistry, she took a temporary research position. Kwolek became so intrigued, she decided to pursue a career in the area of chemical research.

Her work and discoveries with polymers led to the creation of a material five times stronger than steel. The material was named Kevlar. It came about through a combination of experimenting with polymers, heat, and spinning various substances. When tested, the new polymer proved to be very lightweight, yet extremely strong. Resistant to fire and other types of corrosion, it is the primary component of bulletproof vests. As such, it helps save the lives of countless soldiers and law enforcement officers. Many people don’t realize, however, that Kevlar is also used in other products.

Safety helmets, skis, and hunting and camping gear all make use of Kevlar. Not surprisingly, it is also used in suspension bridge cables, and in sea and space technology as well.

Kwolek has received numerous awards for her work and patents. Today, she is retired and enjoys her hobbies, as well as speaking with students about her invention. Kwolek likes to tell her audiences, “Every person has value, no matter what you do. This is what you have to remember.”