material

HDPE

PP

POM

PA6

PA66

PBT GF30

PVDF

PPS

PTFE

PEEK

PI

Long-time woring temp.

90

100

110

100

100

120

150

230

260

260

300

Density

0。96

0.91

1.42

1.13

1.14

1.53

1.77

1.35

2.18

1.32

1.35

Tensile strength at yield

25

30

70

85

80

50

75

25

95

Tensile strength at break

35

170

13.5

4.6

116

Ball indentation hardn

50

80

160

170

190

80

190

30

Impact strength

无（None）

60

50

75

Sliide number

0.29

0.3

0.34

0.38-0.45

0.35-0.42

0.24

0.3

0.08-0.01

0.3-0.38

0.3-0.38

Slide wear

11

4.6

0.23

0.9

21

0.3-0.38

Vicat softening temp.

130

165

175

220

260

225

172

280

327

343

DSC/Tg

-95

-18

-60

60

72

60

-18

90

-20

143

Heat deflection temp.HDT/A

42-49

65

124

75

100

210

95

110

55

140

368

Heat deflection temp.HDT/B

70-85

105

170

190

>200

225

140

121

182

Max working temp.,short time

90

140

150

160

170

200

150

260

260

300

350

Coef.of linear expansion

13-15

17

10

8

8

3.5

13

5

12

5.0

4.9

Dielectric constant at 1 Mhz

2.4

2.25

3.7

3.7-7

3.6-5

3.8

8

2.1

3.2-3.3

3.1

Volume resistivity

>

Anti-hot water and alkali for washing

+

+

-

(+)

(+)

-

+

+

+

+

(+)

Flammability UL94

HB

HB

HB

HB

HB

HB

V0

V0

V0

V0

V0

Anti-weathering

-

-

-

-

-

-

+

-

-

-

(+)