PBT RESIN

Quality characteristics of PBT resin 1000 series

Test Item

Method

Units

L1075

L1082

L1090

Chemical Performance

Intrinsic viscosity

Q/SHYH08.4411

dl/g

0.750±0.015

0.820±0.015

0.900±0.015

Carboxyl

Q/SHYH08.4412

mol/t

≤30

≤30

≤30

Melting point

Q/SHYH08.3026

°C

≥225

≥225

≥225

L value

Q/SHYH08.4413

-

≥88

≥88

≥88

b value

Q/SHYH08.4413

-

≤5.5

≤5.5

≤5.5

Physical Performance

Density

ASTM D792

g/cm3

1.30-1.32

1.30-1.32

1.30-1.32

Melt flow rate

ASTM D1238

g/10min

90-120

60-65

45-50

Tensile strength

ASTM D638

Mpa

40-50

50-60

50-60

Elongation

ASTM D638

%

≥60

≥100

≥200

Notched impact strength

ASTM D256

J/m

≥40

≥40

≥40

Dielectric strength

ASTM D149

KV/mm

≥20

≥20

≥20