Kevlar- The Wonder Material Group 6 Leader: Timothy Tan Members: Warren Cheah Alejandro Go Justyn Go

Kevlar A registered trademark for a para- aramid synthetic fiber patented in 1966 Created by Stephanie Kwolek and Herbert Blades in 1965 for Dupont Company of U.S.A.

Kevlar  Kevlar is an extremely strong material that derives its strength from its weave. It is woven like tiny spider webs.

Kevlar… A special way of weaving liquid into a solid called aramid weave Aramid fibers like Kevlar are: –Difficult to corrode but maybe slightly corrosive if exposed to chlorine

Kevlar’s Properties Heat- resistant Flexible No melting point Lightweight so ideal for bulletproof vests Five times stronger than the same weight of steel

Applications Armor: combat helmet, face mask

Personal protection: jacket and bulletproof vest

Sports equipment: bicycle tires, shoes

Windsurfing sails that can withstand the force of 60 mph winds and do not rip easily are made of Kevlar.

Under water, Kevlar is 20 times stronger than steel. These Kevlar cables are supporting a sonar facility that the U.S. Navy uses to find out how much noise submarines make.

Other applications of Kevlar Audio equipment: loudspeaker cones Ropes and cables Building construction: used in Montreal’s Olympic Stadium Brakes: brake pads

Sources: html cables/11187/ html cables/11187/