Plastic | Rubber | Film
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´ëÇ¥ Á¦Ç°À¸·Î DuPont»çÀÇ Vespel, Saint-Gobain»çÀÇ Meldin, ¿ìº£»çÀÇ Upimol, Äâµå·±Æ®»çÀÇ Duratron, ±¹»êÀ¸·Î´Â PI÷´Ü¼ÒÀçÀÇ Leomid, ´ë¸²H&LÀÇ Plavis µîÀÌ »ó¿ëÈ µÇ¾îÀÖÀ¸¸ç, Á¦Á¶»ç¸¶´Ù ÃÖ°íÀÇ Ç°Áú·Î °ü¸®µÇ´Â Á¦Ç°ÀÔ´Ï´Ù. ¼ö¿¡ÄڽżÒÀç´Â ´Ù¾çÇÑ Æú¸®À̵̹å Á¦Ç°ÀÇ ¹°¼º, °¡°Ý, °ø±Þü°è¿¡ µû¶ó ¼º´É, °¡°Ý, ±¸¸Å ÆíÀǼºÀ» °í·ÁÇØ Á¦Ç°À» ¼±Á¤ÇØ µå¸®¸ç, °¡°ø ¶ÇÇÑ ºü¸£°í, Á¤È®ÇÏ°Ô ÇØ µå¸³´Ï´Ù. Æú¸®À̵̹å´Â °¢ »ý»ê󸶴٠ÁÖÀÇÇØ °ü¸®ÇÏ´Â Ç°¸ñÀ¸·Î ½ÃÇè ¹æ¹ý µîÀÌ »óÀÌÇÏ¿© ¹°¼ºÇ¥³ª Á÷Á¢ºñ±³Ç¥¸¦ °Ô½ÃÇÒ ¼ö ¾øÀ¸³ª, Á÷Á¢ ¹®ÀÇ ¹× »ó´ã ½Ã Á¦°ø °¡´ÉÇÕ´Ï´Ù. ¾Æ·¡ À̹ÌÁö¸¦ ÅëÇØ Æú¸®À̵̹åÀÇ ´Ù¾çÇÑ Ä÷¯¸¦ Âü°íÇϽñ⠹ٶø´Ï´Ù.
Æú¸®À̵̹å Ư¡
¶Ù¾î³ ³»¿¼º(Vespel : ´ë±âÁß 288¡ÆC±îÁö ¿¬¼Ó»ç¿ë, ´Ü½Ã°£ 480¡ÆC)
Young's modulus (GPa)
6
5
4
3
2
1
0
100
200
300
400
500
600
Temperature (K)
±ØÀú¿Â¿¡¼ »ç¿ë°¡´É
³ôÀº ³»¸¶¸ð¼º(Vespel : ¹«À±È°¿¡¼ ÇÑ°èPV 10¹è ÀÌ»ó)
³»Å©¸®ÇÁ¼º(Vespel : 260¡ÆC, 186kg/cm2 06%/1000hr)
Ä¡¼ö¾ÈÁ¤¼º
ÇöóÁ ¹× ¹æ»ç¼±¿¡ ´ëÇÑ ÁÁÀº ³»¼º
Áø°ø¿¡¼ÀÇ ÀÛÀº ¾Æ¿ô°³½Ì : °íÁø°ø 10-10 Torr
¶Ù¾î³ ±â°è°¡°ø¼º
Àü±âÀý¿¬¼º : natural type
Æú¸®À̵̹å Á¾·ù ¹× ºÐ·ù
Plavis
Vespel
Meldin
Duratron
Natural :³»¿,Àý¿¬,°í°µµ
N
SP-1
7001
XP
15%G : °íPV ¹× ³»¸¶¸ð¼º
G15
SP-21
7021
150
40%G : Àú¿ÆØâ,
G40
SP-22
7022
400
15%G+10%Teflon
SP-211
7021
* ÇÔ·®±âÁØÀº ¹«°Ô, G-graphite.
Vespel : Summary of Typical Properties (Machining Stock)
Property
Method
Temp(¡ÆF)
Units
SP-1
SP-21
SP-22
SP-211
SP-3
Tensile Strength, Ultimate
ASTM D-638
73 500
PSI PSI
12,500 6,000
9,500 5,500
7,500 3,400
6.500 3,500
8,200 -
Elongation, Ultimate
ASTM D-638
73 500
% %
7.5 7.0
4.5 2.5
3.0 2.5
3.5 3.0
4.0 -
Flexural Modulus
ASTM D-790
73 500
103 PSI 103 PSI
450 250
550 370
700 400
450 200
- -
Compressive Modulus
ASTM D-695
73
103 PSI
350
420
475
300
-
Wear Rate, PV = 25,000
Unlub.
in/1000
.25-1.2
.09
.06
.07
.25-.33
Friction Coefficient Dynamic* Static Static in Vacuum
Unlub.
.29 .35 -
.24 .30 -
.20 .27 -
.12 .20 -
.25 - .03
Coefficient of Linear Expansion
E-228
73-572
10-5 in/ in/c F
30
27
21
30
-
Dielectric Constant
D-150
73
@104 Hz
3.64
13.28
-
-
-
Underwriters Laboratory Flame Rating: 94-VO
* Steady state, unlubricated in air. PV = 25,000 psi fpm
NOTE: These are typical properties for machined parts. Properties typical of other manufacturing processes may vary. For example the coefficient of linear expansion for direct-formed parts can be 7% to 24% less than the values shwon above, depending on the resin compoosition.
Vespel SP21ÀÇ ºñÀ±È° ¸¶¸ð¼ººñ±³
Vespel¢ç SP-21
Aramid fiber- filled nylon
Carbon/graphite
Graphite-filled PTFE
Graphite- impregnated metal
0
50
100
150
200
250
Maximum PV, psi-ft/min x 103
Typical Electrical Properties of Direct-Formed Parts Made of Vespel¢ç ST
Property/Unit
Temp., ¡ÆC
ASTM Method
ST-2010
SP-21
ST-2030
SP-22
Dielectric strength V/mil (kV/mm)
Room
D-149
265 (10.4)
140 (5.5)
Dielectric constant 100 Hz 10 kHz 1 MHz
Room
D-150
4.80 4.78 4.70
6.55 6.51 6.41
300 110 40.6
12.6 18.7 18.6
Dissipation factor 100 Hz 10 kHz 1 MHz
Room
D-150
0.0014 0.0023 0.0075
0.0019 0.0040 0.0070
6.9 0.65 0.30
Volume resistivity ohm¡¤cm
Room
D-257
3.2 ¡¿ 1016
2.2 ¡¿ 1016
4.8 ¡¿ 107
2.3 ¡¿ 1010
Surface resistivity ohm/square
Room
D-257
2.0 ¡¿ 1016
4.7 ¡¿ 1012
2.6 ¡¿ 108
1.4 ¡¿ 106
Vespel¢ç SP-1 Unfilled
Meldin¢ç 7001 Unfilled
Vespel¢ç SP-21 15% Graphite
Meldin¢ç 7021 15% Graphite
Specific Gravity
ASTM D792
1.43
1.43
1.51
1.51
Water Absorption
24 hr. ASTM D570
0.24%
0.23%
0.19%
0.19%
Mechanical Properties@ 73¡ÆF
Hardness, Rockwell E
ASTM D785
50
40-55
35
25-40
Tensile Strength, Ultimate
ASTM D638
12,500 psi
12,500 psi
9,500 psi
9,500 psi
Elongation at Break
ASTM D638
7.5%
8.0%
4.5%
3.2%
Flexural Modulus
ASTM D790
450 ksi
460 ksi
550 ksi
530 ksi
Flexural Yield Strength
ASTM D790
16,000 psi
15,800 psi
16,000 psi
15,800 psi
Compressive Modulus
ASTM D695
350 ksi
380 ksi
420 ksi
Electrical Properties
Surface Resistance
ASTM D257
5e+015 ohm
1015 - 1016 ohm
4.7e+012 ohm
108 - 10 9 ohm
Dielectric Constant
at 1 MHz; ASTM D150
3.55
3.14
6.41
Dielectric Strength
ASTM D149
559 kV/m
580 kV/m
250 kV/mil
280 kV/m
ÃÊÀú¿Â ´Ü¿Àç·Î »ç¿ëµÇ´Â Polyimide foam
ASTM or UL test
Property
N
G15
G40
MS
-
Composition / Filler Material
Unfilled
15% Graphite
40% Graphite
15% Moly
PHYSICAL
D792
Density (lb/in3 ) (g/cm3 )
0.050 1.39
0.052 1.44
0.059 1.62
0.056 1.55
D570
Water Absorption (%) @ 50% RH
0.95
0.90
0.80
0.90
MECHANICAL
D1708
Tensile Strength, Ultimate @ 73¡ÆF (psi) @ 500¡ÆF (psi)
13,300 7,300
11,400 6,800
10,600 5,900
11,400 -
D638
Tensile Modulus (psi)
-
-
-
-
D1708
Tensile Elongation, Ultimate @ 73¡ÆF (%) @ 500¡ÆF (%)
12.8 8.9
11.2 7.4
9.5 5.7
6.3 -
D790
Flexural Strength, Ultimate @ 73¡ÆF (psi) @ 500¡ÆF (psi)
18,200 8,500
12,500 7,800
12,400 7,000
12,400 7,400
D790
Flexural Modulus @ 73¡ÆF (psi) @ 500¡ÆF (psi)
443,000 247,000
397,000 334,000
683,000 400,000
426,000 341,000
D695
Compressive Strength, 1% strain @ 73¡ÆF (psi) 10% strain @ 73¡ÆF (psi)
3,300 24,000
3,400 15,400
4,100 14,300
4,300 15,000
D695
Compressive Modulus (psi)
336,000
410,000
411,000
355,000
D785
Hardness, Rockwell
M75-85
M68-78
M66-70
M70-75
D256
IZOD Notched Impact (ft-lb/in)
0.94
0.84
0.67
-
THERMAL
D696
Coefficient of Linear Thermal Expansion (x 10-5 in./in./¡ÆF)
3.1
1.9
1.4
2.2
D648
Heat Deflection Temp (¡ÆF / ¡ÆC) at 264 psi
680 / 360
-
-
-
-
Max Continuous Operating Temp (¡ÆF / ¡ÆC)
465 / 240
465 / 240
465 / 240
480 / 250
C177
Thermal Conductivity (BTU-in/ft©÷-hr-¡ÆF) (x 10-4 cal/cm-sec-¡ÆC)
- -
- -
- -
- -
UL94
Flammability Rating
V0
-
-
-
ELECTRICAL
D149
Dielectric Strength (V/mil) short time, 1/8" thick
-
-
-
-
D150
Dielectric Constant at 1 MHz
2.91
-
-
-
D150
Dissipation Factor at 1 MHz
0.0036
-
-
-
D257
Volume Resistivity (ohm-m)
1013 - 1014
1012 - 1013
103 - 104
-