Project

Index

25μm

50μm

70μm

100μm

Tensile strength

 /MPa

Longitudinal

≥15

≥17

≥22

≥25

Transverse

≥17

≥22

≥25

≥28

Standard Fracture strain/%

Longitudinal

≥360

≥370

≥380

≥390

Transverse

≥370

≥380

≥390

≥400

Heat shrinkage rate

Longitudinal

3%≤

2.5%≤

2.5%≤

2%≤

Transverse

3%≤

2.5%≤

2.5%≤

2%≤

Puncture strength/N

Wetting tension

 /（mN/m）

Treated surface

>45

Wetting angle

Treated surface

70°<

Specific gravity

1.70-1.86

Melting point

270℃

treated side is the surface which is treated by physical or chemical method.