鐵氟龍(PTFE, 聚四氟乙烯)
鐵氟龍(PTFE)是一種現代工業不可缺少的高性能材料,結合了耐熱性、化學惰性和優異的絕緣穩定性及低摩擦性,具有其他塑料無法抗衡的綜合優勢,它應用的靈活性使得它能用於幾乎所有形狀和大小的產品上。
 

具有以下優異特性:
優異的耐化學特性 應用:半導體、化工、閥墊
耐高溫/低溫特性 應用:化工、汽車
優異電氣絕緣特性 應用:電子零件
自潤滑性 應用:機械、開關零件
不沾粘性 應用:墊料、塗料
耐候性 應用:戶外建材塗料

 
PTFE Compound混合改質原料
針對不同的特殊要求,在PTFE裡面添加碳黑、玻纖、石墨、不鏽鋼、青銅…等不同的填充料,可以提高材料的耐磨損、硬度等機械性質。可根據客戶之需求提供各種不同配方之混合改質原料。
 
Major Applications and Some Uses of PTFE

INDUSTRY/ APPLICATION AREA

KEY PROPERTIES

TYPICAL USES

Chemical Processing

Chemical Resistance
Good Mechanical Properties
Thermal Stability
Cryogenic Properties

Gaskets, Vessel Liners, Valve and Pipe Liners, Tubing, Coatings

Electrical
& Communications

Low Dielectric Constant
High Volume/Surface Resistivity
High Dielectric Break-down Voltage
Flame Resistance, Thermal stability

Wire and Cable Insulation, Connectors

Automotive & Office Equipment

Low Coefficient of Friction
Good Mechanical Properties
Cryogenic Properties
Chemical Resistance

Seals and Rings in Automotive Power Steering, Transmission, and Air-conditioning. Copier Roller and Food Processing Equipment Covering.

House ware

Thermal stability
Low Surface Energy

Cookware Coatings.

Medical

Low Surface Energy
Chemical stability
Excellent Mechanical Properties
Chemical Resistance

Cardiovascular Grafts, Heater Patches, Ligament Replacement

Architectural Fabric

Excellent Weather ability
Flam Resistance
Low Surface Energy

Coated Fiberglass Fabric for Stadiums and Airport Roofs

 
Physical and Mechanical Properties of Polymer

Material

Specific Gravity

Mold Shrinkage,
%

Tensile Strength, MPa

Break Elongation,
%

Tensile Modulus, MPa

Flexural Strength, MPa

Flexural Strength, MPa
23℃

Impact Notched Izod
J/m(23℃)

Compressive Strength, MPa

PTFE

2.14~2.22

2~10

20~35

300~550

550

No Break

340~620

188

34.5

Polystyrene

1.06

0.5

46

2.2

3172

96

3103

10.8

96.6

ABS

1.05

0.6

48

8.0

2069

72

2621

242

69

SAN

1.08

0.4

72

3.0

3862

103

3793

27

103

Polypropylene

0.9

1.5

32

15.0

1310

41

2069

27

34.5

Polyethylene

0.96

2.0

30

9.0

1034

38

1517

70

27.6

Polyacetal

1.41

1.8

61

60.0

2827

90

2552

70

36

Polyester

1.3

2.0

55

200

2758

88

2345

10.8

90

Polyamide, nylon 6

1.13

1.3

81

200

2758

103

2759

53.8

90

Polyamide, nylon 6,6

1.14

1.8

79

300

1310

103

1310

53.8

34

Polycarbonate

1.2

0.6

62

110

2379

93

2345

161

86

Polysulfone

1.24

0.7

70

75

2482

106

2690

32

96.6

 
 
Water Absorption and the Effect of Organic Chemicals and Inorganic Chemicals on Polymers

Material

Weak Bases and Salts

Strong Bases

Strong Acids

Strong Oxidants

24Hr Water Absorption

Aromatic Solvents

Aliphatic Solvents

Chlorinated Solvents

Esters and Ketones

 

25℃

93℃

25℃

93℃

25℃

93℃

25℃

93℃

Weight Change, %

25℃

93℃

25℃

93℃

25℃

93℃

25℃

93℃

PTFE

1

1

1

1

1

1

1

1

0

1

1

1

1

1

1

1

1

Polyacetal

1~3

2~5

1~5

2~5

5

5

5

5

0.23

1~4

2~4

1

2

1~2

4

1

2~3

ABS

1

2~4

1

2~4

1~4

5

1~5

5

0.1~0.4

4

5

2

3~5

3~5

5

3~5

5

Nylons

1

2

2

3

5

5

5

5

0.2~1.9

1

1

1

1

1

2

1

1

Polyester

1

3~4

2

5

3

4~5

2

3~5

0.06~0.09

2

5

1

3~5

3

5

2

3~4

Polyethylene

1

1

1

1

1

1

1

1

<0.01

3

4

3

4

3

4

3

4

Polystyrene

1

5

1

5

4

5

4

5

0.03~0.6

4

5

4

5

5

5

4

5

Polysulfone

1

1

1

1

1

1

1

1

0.2~0.3

4

4

1

1

5

5

3

4

PVC

1

5

1

5

1

5

2

5

0.04~1

4

5

1

5

5

5

4

5

*Effect is defined by ASTM D543 and D2299
1 = No effect or inert,  2 = Slight effect,  3 = Mild effect,  4 = Softening or swelling,  5 = Severe degradation