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PTFE POLYFLON TFE

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Properties of PTFE MOLDING POWDERS

Item Unit Filler contant(wt%) Glass fiber
(15%)
Glass fiber
(25%)
Graphite
(15%)
Graphite
(20%)
Graphite
(30%)
Bronze
(40%)
Bronze
(60%)
Mechanical propertles
Tensile strength
MPa ASTM D638   19.6 15 16.6 15 12 17.2 13.8
Elongation % ASTM D638   250 200 150 140 130 175 140
Compressive strength MPa 0.2%off set
1% strain
25% strain
24℃
24℃
24℃
//
//
//
7.7
7.0
28.0
8.6
8.3
28.9
10.2
7.5
31.9
10.3
7.7
33.9
10.5
8.6
39.7
10.5
9.0
40.0
11.6
10.2
43.1
Compressive modulus MPa 24℃   // 785 940 790 800 830 1060 1100
Compressive creep %
ASTM

D-621

2000psi
24℃,24h
2000psi
100℃,24h
//

//
8.8

4.4
8.4

3.8
5.6

3.1
5.1

2.8
3.3

1.8
3.9

1.9
3.1

2.1
Total deformation % ASTM

D-621
2000psi
24℃,24h
2000psi
100℃,24h
//

//
15.0

10.5
14.0

8.5
7.0

5.4
6.7

5.5
5.9

5.6
7.0

4.8
6.6

6.1
Compression set % ASTM

D-621
2000psi
24℃,24h
2000psi
100℃,24h
//

//
9.0

3.8
8.8

3.5
3.8

3.0
3.5

2.7
2.5

1.6
3.8

1.7
2.3

1.8
Hardness DurometerD Shore, 25℃   // 53~63 55~65 53~63 53~64 55~65 60~70 62~72
Coefficient of friction
(Static)
(Dynamic)
       

0.065
0.24


0.085
0.26


0.053
0.23


0.053
0.23


0.065
0.25


-
0.25


0.062
0.24
Wear factor mm/km
MPa
      1.2X10⁻⁴ 1.0X10⁻⁴ 6.7X10⁻⁴ 4.4X10⁻⁴ 2.0X10⁻⁴ 1.5X10⁻⁴ 0.7X10⁻⁴
Physical properties
Specific gravity
  ASTM
792
    2.15~2.25 2.18~2.26 2.14~2.19 2.12~2.18 2.13 2.9~3.2 3.8~4.0
Coefficient of linear
hermal expansion
10⁻5X1/℃ 25~100℃

25~150℃

25~200℃

25~200℃

  //

//

//

//
11.8
7.8
12.9
8.7
14.1
9.9
15.4
11.1
9.3
6.7
10.7
7.2
12.0
7.7
14.0
9.3
10.7
8.7
11.6
9.2
12.8
10.0
14.7
11.5
10.0
8.0
11.0
8.6
12.1
9.4
13.9
10.8
7.8
5.6
8.9
6.7
10.1
7.4
11.5
8.8
  9.8
7.6
10.3
8.5
10.7
9.1
12.5
10.7
Coefficient of thermal
conductivlty
kcal/
m·h·℃
      0.29 0.34 0.34   0.95   0.42
Electrical properties
Dielectric strength
kv/mm JISD 2120(oil),25℃    
17.4

13.7

4.1
 
1.5

-

-
Dielectric constant   JISD
6911,23℃
10³Hz
106Hz
  2.64
2.80
2.94
2.89
-
-
-
-
-
-
-
-
-
-
Dielectric loss
trangent
  JISD
6911,23℃
10³Hz
106Hz
  0.145
0.0015
0.533
0.0014
-
-
-
-
-
-
-
-
-
-
Volume resistivity Ω-cm ASTM D257     3X1015 7X1015 9X1015 - 2X1015 - -

 

Item Unit Filler contant(wt%) Bronze(40%)
MoS2(5%)
Carbon/
Graphite
(25%)
Carbon/
Graphite
(35%)
Carbon fiber
(10%)
Carbon fiber
(15%)
Carbon fiber
(25%)
Mechanical propertles
Tensile strength
MPa ASTM D638   14 11.0 6.9 2.0 20.2 16.7
Elongation % ASTM D638   180 80 50 200 120 30
Compressive strength MPa 0.2%off set
1% strain
25% strain
24℃
24℃
24℃
//
//
//
10.5
9.0
40.0
10.0
8.7
38.5
10.6
9.4
39.5
9.3
8.3
31.0
10.8
8.5
39.7
11.3
10.0
39.8
Compressive modulus MPa 24℃   // 1060 960 1090 850 915 1000
Compressive creep % ASTM

D-621

2000psi
24℃,24h
2000psi
100℃,24h
//

//
3.9

1.9
4.0

2.3
3.7

1.8
4.4

2.5
4.0

2.0
3.9

1.9
Total deformation % ASTM

D-621
2000psi
24℃,24h
2000psi
100℃,24h
//

//
7.0

4.8
8.7

5.4
6.9

3.0
9.0

7.0
8.9

6.0
6.4

5.5
Compression set % ASTM

D-621
2000psi
24℃,24h
2000psi
100℃,24h
//

//
3.8

1.7
3.8

2.1
3.5

1.6
4.3

2.9
3.6

1.5
3.1

2.0
Hardness DurometerD Shore, 25℃   // 60~70 58~68 60~70 55~60 60~65 65~75
Coefficient of friction
(Static)
(Dynamic)
       

-
0.25


-
0.24


-
0.24


-
0.27


-
0.28


-
0.29
Wear factor mm/km
MPa
      1.5X10⁻⁴ 2.1X10⁻⁴ 2.4X10⁻⁴ 1.0X10⁻⁴ 1.0X10⁻⁴ 2.0X10⁻⁴
Physical properties
Specific gravity
  ASTM
792
    2.95~3.25 1.95~2.10 1.90~2.10 2.0~2.17 1.96~2.16 1.93~2.13
Coefficient of linear
hermal expansion
10⁻5X1/℃ 25~100℃

25~150℃

25~200℃

25~200℃

  //

//

//

//
        15.0
5.6
16.5
5.7
19.1
6.4
22.5
7.3
10.3
4.0
11.5
4.3
13.2
4.7
15.7
5.5
Coefficient of thermal
conductivlty
kcal/
m·h·℃
            0.39 0.40 0.40
Electrical properties
Dielectric strength
kv/mm JISD 2120(oil),25℃    
-

-

-

-

-

-
Dielectric constant   JISD
6911,23℃
10³Hz
106Hz
  -
-
-
-
-
-
-
-
-
-
-
-
Dielectric loss
trangent
  JISD
6911,23℃
10³Hz
106Hz
  -
-
-
-
-
-
-
-
-
-
-
-
Volume resistivity Ω-cm ASTM D257     - - - - 8X104 9X102

 

Item Unit Filler contant(wt%) Grass fiber(15%)
MoS2(5%)
Grass fiber(20%)
Graphite(5%)
Non-filled
Mechanical propertles
Tensile strength
MPa ASTM D638   17.2 16 21
Elongation % ASTM D638   250 200 275
Compressive strength MPa 0.2%off set
1% strain
25% strain
24℃
24℃
24℃
//
//
//
10.2
8.2
34.3
10.6
9.6
36.7
7.6
5.4
28.0
Compressive modulus MPa 24℃   // 855 980 560
Compressive creep % ASTM

D-621

2000psi
24℃,24h
2000psi
100℃,24h
//

//
5.9

3.0
5.0

2.4
9.5

4.8
Total deformation % ASTM

D-621
2000psi
24℃,24h
2000psi
100℃,24h
//

//
9.9

8.1
8.5

6.1
15.2

14.5
Compression set % ASTM

D-621
2000psi
24℃,24h
2000psi
100℃,24h
//

//
5.2

3.3
4.2
2.4
7.0

4.6
Hardness DurometerD Shore, 25℃   // 55~65 58~68 52~62
Coefficient of friction
(Static)
(Dynamic)
       

0.085
0.25

0.073
0.24

0.048
0.22
Wear factor mm/km
MPa
      1.0X10⁻⁴ 0.5X10⁻⁴ 2.0X10⁻⁴
Physical properties
Specific gravity
  ASTM
792
    2.15~2.30 2.20~2.35 2.13~2.19
Coefficient of linear
hermal expansion
10⁻5X1/℃ 25~100℃

25~150℃

25~200℃

25~200℃

  //

//

//

//
12.8
7.1
14.0
7.7
15.2
8.4
17.4
9.4
11.7
6.1
12.8
6.6
13.9
7.2
15.9
8.3
11.9
11.0
13.0
11.9
13.6
12.7
15.9
15.1
Coefficient of thermal
conductivlty
kcal/
m·h·℃
      0.28 0.32 0.20
Electrical properties
Dielectric strength
kv/mm JISD 2120(oil),25℃    
20.2

10.2
46.4
Dielectric constant   JISD
6911,23℃
10³Hz
106Hz
  3.45
3.24
7.18
6.99
2.06
2.06
Dielectric loss
trangent
  JISD
6911,23℃
10³Hz
106Hz
  0.007
0.014
0.029
0.0071
0.0001
0.0001
Volume resistivity Ω-cm ASTM D257     3X1015 3X1014 6.5X1018
-