Table 1 Comparison of the physical, mechanical and economic properties of different fibres8,9,51

From: Integrating tough Antheraea pernyi silk and strong carbon fibres for impact-critical structural composites

Fibre

Density (103 kg m-3)

Fibre length

Tensile strength (MPa)

Tensile modulus (GPa)

Elongationat break (%)

Breaking energy (MJ m-3)

Biodegradable

E-glass

2.5

Continuous

2000–3500

70–85

2.5–5.3

40–50

No

Carbon

1.8

Continuous

3000–4000

230–550

0.7–1.9

25

No

Flax

1.4

Discrete

800–1500

60–80

1.2–1.6

7–14

Yes

B. mori silk

1.3

Continuous

300–600

5–10

10–25

70

Yes

A. pernyi silk

1.3

Continuous

500–700

5–10

30–45

150

Yes

Spider silk

1.3

Continuous

900–1400

10–12

30–60

160–240

Yes