Quality characteristics of PBT resin 2000 series

Test Item

Method

Units

L2100

L2105

Chemical Performance

Intrinsic viscosity

Q/SHYH08.4411

dl/g

1.000±0.015

1.050±0.015

Carboxyl

Q/SHYH08.4412

mol/t

≤30

≤30

Melting point

Q/SHYH08.3026

°C

≥225

≥225

L value

Q/SHYH08.4413

-

≥88

≥88

b value

Q/SHYH08.4413

-

≤5.5

≤5.5

Physical Performance

Density

ASTM D792

g/cm3

1.30-1.32

1.30-1.32

Melt flow rate

ASTM D1238

g/10min

23--28

18-23

Tensile strength

ASTM D638

Mpa

50-60

50-60

Elongation

ASTM D638

%

≥200

≥200

Notched impact strength

ASTM D256

J/m

≥40

≥40

Dielectric strength

ASTM D149

KV/mm

≥20

≥20