Sabic Lexan 920A PC树脂

lexan pc 920a物性

低粘度注射成形，阻燃的pc 。特殊的表面外观。有透明和不透明的颜色

property

mechanical

valueunitstandard

tensile stress, yld, type i, 50 mm/min

630

kgf/cm2

astm d 638

tensile stress, brk, type i, 50 mm/min

560

tensile strain, yld, type i, 50 mm/min

7

%

tensile strain, brk, type i, 50 mm/min

90

flexural stress, yld, 1.3 mm/min, 50 mm span

920

astm d 790

flexural modulus, 1.3 mm/min, 50 mm span

22800

hardness, rockwell m

70

-

astm d 785

hardness, rockwell r

118

taber abrasion, cs-17, 1 kg

10

mg/1000cy

astm d 1044

impact

izod impact, unnotched, 23°c

326

cm-kgf/cm

astm d 4812

izod impact, notched, 23°c

65

astm d 256

tensile impact, type "s"

535

cm-kgf/cm2

astm d 1822

falling dart impact (d 3029), 23°c

1728

cm-kgf

astm d 3029

thermal

vicat softening temp, rate b/50

151

°c

astm d 1525

hdt, 0.45 mpa, 6.4 mm, unannealed

137

astm d 648

hdt, 1.82 mpa, 6.4 mm, unannealed

132

cte, -40°c to 95°c, flow

6.84e-05

1/°c

astm e 831

thermal conductivity

0.19

w/m-°c

astm c 177

relative temp index, elec

130

ul 746b

relative temp index, mech w/impact

120

relative temp index, mech w/o impact

physical

specific gravity

1.21

astm d 792

specific volume

0.83

cm2g

density

1.217

g/cm2

water absorption, 24 hours

0.15

astm d 570

water absorption, e, 23c

0.35

water absorption, e, 100°c

0.58

mold shrinkage, flow, 3.2 mm

0.5 - 0.7

sabic method

melt flow rate, 300°c/1.2 kgf

14.5

g/10 min

astm d 1238

optical

light transmission

85

astm d 1003

haze

1

refractive index

1.586

astm d 542

electrical

volume resistivity

>1.e+17

ohm-cm

astm d 257

dielectric strength, in air, 3.2 mm

16.7

kv/mm

astm d 149

relative permittivity, 50/60 hz

3.01

astm d 150

relative permittivity, 1 mhz

2.96

dissipation factor, 50/60 hz

0.0009

dissipation factor, 1 mhz

0.01

arc resistance, tungsten {plc}

plc code

astm d 495

hot wire ignition {plc)

2

ul 746a

high voltage arc track rate {plc}

3

high ampere arc ign, surface {plc}

comparative tracking index (ul) {plc}

flame characteristics

ul recognized, 94v-2 flame class rating (3)

1.47

mm

ul 94

ul recognized, 94v-0 flame class rating (3)

2.99

radiant panel listing

yes

ul tested

processing

parameter

injection molding

valueunit

drying temperature

drying time

3 - 4

hrs

drying time (cumulative)

48

maximum moisture content

0.02

melt temperature

290 - 310

nozzle temperature

280 - 305

front - zone 3 temperature

middle - zone 2 temperature

275 - 300

rear - zone 1 temperature

265 - 290

mold temperature

70 - 95

back pressure

0.3 - 0.7

mpa

screw speed

40 - 70

rpm

shot to cylinder size

40 - 60

vent depth

0.025 - 0.076