氟化物特性

氟化物 Datasheet

Item

Unit
單位

ASTM

PTFE(4F)

PFA

PCTFE

PVDF

FEP

PEEK

Test Method

(3F)

(2F)

(4-6F)

 

Density
比重

D792

2.14~2.20

2.12~2.17

2.1~2.2

1.75~2.17

2.12~2.17

1.31

Melting Point
融點

°C

327

302~310

210~212

170

253~282

340

Physical Properties

物性特質

Tensile Strength
拉伸強度

Kg/cm²

D638

280~350

320

315~420

400~520

200~320

1142

Elongation
伸長率

%

D638

200~400

280~300

80~250

100~300

250~330

20

Compression Strength
壓縮強度

Kg/cm²

D695

120

-

320~520

600

150

Impact Strength
衝擊強度

Kg*cm/cm

D256

16.3

Not Damaged
不破壞

13.6~14.7

19.6~21.8

Not Damaged
不破壞

Not Damaged
不破壞

Hardness
硬度

Rockwell Hardness

D782

R25

-

R75~95

R100~115

R25

R126

Hardness
硬度

Shore Hardness

D1706

D55

D60

D90

D80

D55

D85

Static Friction Coefficient
靜摩擦係數

-

0.05

-

0.25

0.1

.

Kinetic Friction Coefficient
動摩擦係數

-

0.1

0.2

0.37

0.39

0.3

0.4

Thermal
Properties

Heat Conductivity
熱傳導度

10-4cal/cm.

C117

5.9

6.2

4.7~5.3

3

6

sec.°C

熱的性質

Coefficient of Linear Expansion
線膨脹係數 

10-5 /°C

D696

9.9(23~66°C)

12(21~100°C)

4.5~7.0

8.5

8.3~10.5

(-73~71°C)

Operating Temperature
使用溫度

°C

260

260

150~180

150

200

300

Electrical 
Properties

Volume Resistibility
體積抵抗率

Ω.cm

D257

>1018

>1018

12*1018

20*1014

>1018

Surface Resistibility
表面抵抗率

Ω

D257

>1016

>1016

-

-

>1016

>1013

電氣性質

Insulation Resistibility
絕緣抵抗率

1/8”thick

D149

16~24

20~24

20~24

10.4

20~24

24

Kv/mm

Durability
耐久性

Chemical Resistance
耐藥性

D543

Excellent

Excellent

Good

Good

Excellent

Good

Flammability
燃燒性

%

D635

Non-Flammable
不燃

Non-Flammable
不燃

Non-Flammable
不燃

自行消化
>>>>>>>

Non-Flammable
不燃

Flame Resistant
耐燃

Permeability
吸水性

%

D570

<0.01

0.03

0

0.04

<0.01

0.1

*PEEK非氟素樹脂類,僅供物性比較,與耐較高壓力及耐較高溫度之應用

氟化物種類及耐化性比較

Category (Name) Molecule Structure
(Fluorine per molecule)
Melting Point and Operating Temperature Chemical Resistance
PTFE ptfe-chemical-formula
m.p. 327oC
W.TEMP(MAX) 260oC

Excellent chemical stability;
PTFE don't interact with the vast majority of chemicals and solvents.
However, it is vulnerable to molten alkali metal.
PTFE also interacts with fluorine gas and fluorine compounds, such as CIF3. OF2, under high temperature and high pressure environments

ETFE

etfe-chemical-formula

m.p. 270oC
W.TEMP(MAX) 150oC

Similar to the chemical resistance of PTFE, but easily corroded by nitric acids. Has chemical resistance on par with PTFE, but easily corroded by certain chemicals such as nitric acid.

ECTFE

ectfe-chemical-formula

m.p. 240oC
W.TEMP(MAX) 150oC

Highly crystalline, high polymer material, with superior permeability properties. 

PFA

pfa-chemical-formula

m.p. 302~310oC
W.TEMP(MAX) 260oC

Similar to the chemical resistance of PTFE, with superior mechanical and sanitary properties.

FEP

fep-chemical-formula

m.p. 253~282oC
W.TEMP(MAX) 160oC
Similar to the chemical resistance of PTFE, but has slightly lower operating temperature.
PVDF

pvdf-chemical-formula

m.p. 170oC
W.TEMP(MAX) 130~150oC

Easily dissolved by fuming sulfuric acid, high temperature sulfuric acid, or caustic soda above 100oC; also bloats or dissolves when interacting with strong solvents such as acetonketoneDMA, acetamide or extremely alkalic primary amine such as n-butylamine.