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项目

Item

PVDF

ETFE

FEP

PTFE

PFA

LFF

绝缘耐压(kV/mm

Voltage withstand

20-35

20-35

15-30

20-30

20-35

20-30

体积电阻率(Ω·cm

Volume resistivity

>1014

>1016

>1018

>1018

>1018

>1016

介电常数

Dielectric constant

3.5-8

2.6

2.1

2.1

2.1

3.8

介电损耗因数(%

Dissipation factor

5-25

0.2

0.03

0.02

0.02

-

抗拉强度(Mpa

Tensile strength

39-59

59-69

20-25

15-32

17-29

8-18

伸长率(%

Elongation

350-450

200-300

100-300

100-300

100-300

350

比重

Specific gravity

1.77

1.7

2.2

2.2

2.2

1.7

软化温度(℃)

Softening temperature

149

270

285

327

305

-

额定温度(℃)

Rating temperature

105

150

200

250

250

200

难燃性

Flammability

耐热老化性(Aging

Heat  resistance

耐热变形性

Heat deformation resistance

耐寒性

Cold resistance

耐气候性

Weather resistance*3

耐臭氧性

Ozone resistance

耐油性

Oil resistance

耐酸性

Acid resistance

耐碱性

Alkaline resistance

注:1◎优 Excellent ,◇良好 Very Good,〇良 Good,△可 Fair,×不可 Poor