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Fluoro(ºÒ¼Ò¼öÁö-Teflon)
Ź¿ùÇÑ ³»ÈÇмº ¹× ³»¿¼ºÀ» °¡Áö´Â ºÒ¼Ò¼öÁö´Â ºÒ¼ÒÈÇÕ¹°ÀÇ Á¾·ù¿¡ µû¶ó ¸Å¿ì ´Ù¾çÇÑ Á¦Ç°µéÀÌ Àִµ¥ ±× ´ëÇ¥Àû Á¦Ç°À¸·Î PTFE, PVDF, PFA, FEP, PCTFE µîÀÌ ÀÖ´Ù. ÀÌµé °¢°¢¿¡´Â Á¦Á¶»ç¸¶´Ù µ¶¸³ÀûÀÎ »óÇ¥(Trade Name)¸¦ »ç¿ëÇÏ¿© ´Ù¾çÇÑ Á¦Ç°À» Ãâ½ÃÇÏ¿© »ç¿ëÇÏ°í ÀÖ´Ù. ÈçÈ÷ ¿ì¸®°¡ ¾Æ´Â TeflonÀº DuPont¿¡¼ ³ª¿À´Â PTFEÀÇ Á¦Ç°¸í ÀÌ´Ù. ±× Ư¼ºÀÌ ¶Ù¾î³ª°í ´Ù¾çÇÑ °¡°ø¹æ¹ýÀ¸·Î ´Ù¾çÁ¦Ç°ÀÌ °¡´ÉÇÏ¿© »ê¾÷¿ë ¼ÒÀç¿¡¼ ºÎÅÍ ÈĶóÀÌÆÒ, ¾Æ¿ôµµ¾îÄÚÆÃ¿ë µî ¸¹Àº ºÎºÐ¿¡¼ »ç¿ëµÇ°í ÀÖ´Ù. ¼ø¼ö PTPE¿¡ ´Ù¾ç ÷°¡Á¦(filler : Glass, Carbonµî)¸¦ ³Ö¾î µ¶Æ¯ÇÑ ¼ºÁúÀÇ Á¦Ç°(»ý°í¹Ý Rulon)µéµµ ÁÖ¿äÇÏ°Ô »ç¿ëµÇ°í ÀÖ´Ù.
Ư¼º(PTFE-PolyTetraFluoroEthyllene)
ºÒ¼Ò¼öÁöÀÇ 3´ë Ư¡(ÃÖ°íÀÇ ³»¿¼º +ÃÖ°íÀÇ ³»ÈÇмº +ºñÁ¢Âø¼º).
³ôÀº ³»¿¼º ¹× ³ÐÀº »ç¿ë¿Âµµ(-240¡ÆC to 260¡ÆC)
ÃÖ°íÀÇ ³»ÈÇмº
ÃÖ°íÀÇ ³»Èļº(Weather resistance)
ÃÖÀú ¼öÁØÀÇ ¸¶Âû°è¼ö
³ôÀº ÀÎÀ强, ³»È¿°¼º, FDA.
´Ù¾çÇÑ ºÒ¼ö¼öÁö ÈÇÐ¸í ¹× ´ëÇ¥ »óÇ¥¸í
PTFE, FEP, PFA - Teflon,® Neoflon®, Hyflon®
(Fluorinated ethylene propylene)(Perfluoroalkoxy)
MFA - Hyflon®
ETFE - Tefzel®, Neoflon®(Ethylene tetra-fluoro ethylene)
ECTFE - Halar®(thylene chloro tri-fluoro ethylene)
PCTFE(or CTFE) - Neoflon®(originally Kel-F®)(Poly chloro tri-fluoro ethylene)
PVDF - Solef®, Hylar®, Kynar®(Poly vinyledene fluoride)
Rulon ®
the Saint Gobain Performance PlasticsÀÇ °íÀ¯ÇÑ »óÇ¥¸íÀ¸·Î PTFE¿¡ ´Ù¾çÇÑ ÇÊ·¯¸¦ µ¶Æ¯ÇÏ°Ô ¹èÇÕÇÏ¿© ¿ëµµº°(º£¾î¸µ, ³»¿, °µµ µî) ÃÖ°íÀÇ ¼º´ÉÀ» ¹ßÈÖÇÏ´Â Á¦Ç°À¸·Î LR,J, 641, AR, 142, 123µî ¸¹Àº Á¦Ç°µéÀÌ ÀÖ´Ù. ºñ½ÁÇÑ Á¦Ç°À¸·Î ºÎ»è¼¤¹ÝÀÇ Turcite°¡ ÀÖ´Ù.
ºÎ»è¼¤¹Ý¿¡ ³ª¿À´Â Á¦Ç°Àº ¸¶¸ðº£¾î¸µ¿ëÀÎ Turcite ÀÌ¿Ü¿¡µµ sealÁ¦Ç°Àº Turcon°ú Àü±âÈÇÐ ¹× °í¼º´É º£¾î¸µ¿ëÀ¸·Î HiMod°¡ ÀÖ´Ù.
TYPICAL PROPERTIES of PTFE
|
ASTM or UL test |
Property |
PTFE
(unfilled) |
PTFE
(25% glass filled) |
PTFE
(25% carbon filled) |
PHYSICAL |
D792 |
Density (lb/in©ø)
(g/cm©ø) |
0.078
2.16 |
0.081
2.25 |
0.075
2.08 |
D570 |
Water Absorption, 24 hrs (%) |
< 0.01 |
0.02 |
0.05 |
MECHANICAL |
D638 |
Tensile Strength (psi) |
3,900 |
2,100 |
1,900 |
D638 |
Tensile Modulus (psi) |
80,000 |
- |
- |
D638 |
Tensile Elongation at Break (%) |
300 |
270 |
75 |
D790 |
Flexural Strength (psi) |
No break |
1,950 |
2,300 |
D790 |
Flexural Modulus (psi) |
72,000 |
190,000 |
160,000 |
D695 |
Compressive Strength (psi) |
3,500 |
1,000 |
1,700 |
D695 |
Compressive Modulus (psi) |
70,000 |
110,000 |
87,000 |
D785 |
Hardness, Shore D |
D50 |
D60 |
D62 |
D256 |
IZOD Notched Impact (ft-lb/in) |
3.5 |
- |
- |
THERMAL |
D696 |
Coefficient of Linear Thermal Expansion
(x 10-5 in./in./¡ÆF) |
7.5 |
6.4 |
6.0 |
D648 |
Heat Deflection Temp (¡ÆF / ¡ÆC)
at 264 psi |
132 / 55
|
150 / 65
|
150 / 65
|
D3418 |
Melting Temp (¡ÆF / ¡ÆC) |
635 / 335 |
635 / 335 |
635 / 335 |
- |
Max Operating Temp (¡ÆF / ¡ÆC) |
500 / 260 |
500 / 260 |
500 / 260 |
C177 |
Thermal Conductivity
(BTU-in/ft©÷-hr-¡ÆF)
(x 10-4 cal/cm-sec-¡ÆC) |
1.70
5.86
|
3.1
10.6
|
4.5
15.5
|
UL94 |
Flammability Rating |
V-O |
V-O |
V-O |
ELECTRICAL |
D149 |
Dielectric Strength (V/mil) short time, 1/8" thick |
285 |
- |
- |
D150 |
Dielectric Constant at 1 MHz |
2.1 |
2.4 |
- |
D150 |
Dissipation Factor at 1 MHz |
< 0.0002 |
0.05 |
- |
D257 |
Volume Resistivity (ohm-cm)at 50% RH |
> 1018 |
> 1015 |
104 |
|