Kevlar

(Kevlar is a trademark of DuPont)

kevlar.jpg

stephanie-kwolek.kevlar.jpg

Kevlar is a high strength aramid fiber invented by Stephanie Kwolek in the 1960s, and sold by DuPont since 1971

Kevlar 49 Properties

Kevlar in matrix, WAG

3

GPa

breaking strength

2

GPa

124

GPa

tensile modulus

82

GPa

1.44

g/cm3

density

1.5

g/cm3

2.08

MYuri

specific strength

1.3

MYuri

9.3

km/s

longitudinal speed

7

km/s

1.4

km/s

max transverse speed

110

$/kg

cost (old citation)

Kevlar Technical Guide downloaded from DuPont.