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Krytox Oils & Greases (PFPE Oils & Greases)
Chemours(Äɹ«¾î½º)ÀÇ Krytox(Å©¶óÀÌÅ彺)´Â ÃÖ°íÀÇ Æ¯¼º Á¶ÇÕÀ¸·Î »ç¿ëÀÚÀÇ ¾î·Á¿î À±È°¹®Á¦¸¦ ÃÖÀûÀÇ ºñ¿ëÀ¸·Î ÇØ°á ÇÒ ¼ö ÀÖ½À´Ï´Ù.
¿ì¼öÇÑ Àú¿Â ¹× °í¿Â ¼º´ÉÀ» °®°í ÀÖ¾î -70¡É ~ 316¡É »çÀÌ¿¡¼ À±È°ÀÛ¿ëÀÌ °¡´ÉÇÕ´Ï´Ù.
¿Ïº®ÇÑ ºÒ¿¬¼º, »ê¼Ò¿ÍÀÇ »ó¿ë¼º, ¸ðµç ÄɹÌÄ®¿¡ ´ëÇÑ ³»ÈÇмºÀÌ ¿ä±¸µÇ´Â ºÐ¾ß¿¡¼ ÃÖ»óÀÇ Æ¯¼ºÀ» ºÎ¿©Çϰí ÀÖ½À´Ï´Ù.
À±È°Á¦, ¾Á¶õÆ®, Àý¿¬Àç·Î¼ ¿ì¼öÇÑ ¼º´É°ú Çâ»óµÈ ¼ö¸íÀ» Á¦°øÇÕ´Ï´Ù.
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Krytox Àû¿ë»ê¾÷ ºÐ¾ß
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Krytox Oil & GreaseÀÇ ÁÖ¿ä Æ¯Â¡
Chemours Krytox ´Â gear box, bearing°ú chain, seal, acturator, valveµî°ú °°Àº ±â°èÀû ½Ã½ºÅÛ¿¡ ¶Ù¾î³ ±â´ÉÀ» ºÎ¿© ÇÒ ¼ö ÀÖ´Â Å×ÇÁ·Ð°è ±×¸®½ºÀÔ´Ï´Ù. ¶ÇÇÑ Á¦Ç°ÀÇ ³»±¸ ¼º´ÉÀ» Çâ»ó½ÃŰ°í ¼ÒÀ½, Áøµ¿ ¹× ÀÌÀ½¿¡ °ü·ÃÇÑ ÇØ°áÀÌ °¡´ÉÇÕ´Ï´Ù. Chemours Krytox´Â ±¸µ¿ºÎǰÀÇ ¼º´É Çâ»ó°ú ¼ÒÀ½ÀÇ ÇØ°á¿¡ Ź¿ùÇÑ ±â´ÉÀ» ÇÕ´Ï´Ù.
1) ¿ø°¡Àý°¨È¿°ú (Cost Effectiveness)
Krytox®´Â ÀϹÝÀûÀΠźȼö¼Ò°è À±È°À¯¿¡ ºñÇÏ¿© »ó´ëÀûÀ¸·Î ±ä ¼ö¸íÀ» ³ªÅ¸³»¹Ç·Î ´Ù¾çÇÑ ÀÀ¿ëºÐ¾ß¿¡¼ ¾Æ·¡¿Í °°ÀÌ ¿ø°¡Àý°¨È¿°ú¸¦ º¸ÀÔ´Ï´Ù. |
- Life/Cost/Reliability |
Application
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Typical Hydrocarbon
Lubricant
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Krytox® Lubricants
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Electric motor, 227¡É(440¢µ)
1,750 RPM
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5 days
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9 months
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Heated Rolls, 199¡É(390¢µ)
5,000 RPM
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8 months
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24 months
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Textile roll, 225¡É(437¢µ)
5,400 RPM
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1 month
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24 months
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Pressure relief valves
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50% failures
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Less than 1% failures
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Paper corrugating machine
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$144,000
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$3,000
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2) ±×¸®½ºÀÇ ±â°èÀû ¾ÈÀü¼º (Grease Mechanical
Stability)
Krytox® ±×¸®½º´Â º£¾î¸µ¿¡ ÀÖ¾î Ź¿ùÇÑ ±â°èÀû ¾ÈÁ¤¼ºÀ» °®°í ÀÖÀ¸¸ç, ±â°èÀûÀÎ ÇÏÁß ¾Æ·¡¿¡¼µµ ºÐÇØµÇÁö ¾ÊÀ¸¸ç, ¿ÀÀÏÀÌ ºÐ¸®µÇÁö ¾Êµµ·Ï À¯ÁöÇÏ´Â ´É·ÂÀ» °®°í ÀÖ´Ù.
Krytox® ±×¸®½º¸¦ 60ȸ(strokes), 10,000ȸ, 100,000ȸ Á¶°ÇÀ¸·Î ȥȱâ(grease worker)¿¡¼ È¥È ½ÃŲ ÈÄ, °æµµº¯È¸¦ Å×½ºÆ® ÇÑ °á°ú, ¸ðµç ±×¸®½º°¡ NLGI ÁÖµµ(penetration) scale·Î 30point ÀÌÇÏÀÇ º¯È¸¦ º¸¿´À¸¸ç, Å×½ºÆ® ÈÄÀÇ NLGI °ªÀÌ ÃÖÃÊÀÇ °ª ´ëºñ ½grade À̳»·Î º¯È µÇ¾ú´Ù. Roll Stability Test´Â 4,500-lbfÀÇ ÇÏÁßÀ¸·Î 2½Ã°£ µ¿¾È ASTM D-1831¿¡ ÀǰÅÇÏ¿© ½ÃÇàµÇ¾úÀ¸¸ç, ±× °á°ú Penetration º¯È´Â ¹Ì¹ÌÇÏ¿´À¸¸ç, ÃÖÃÊ °ª ´ëºñ NLGI Grade scale·Î ½ À̳»·Î º¯ÈµÇ¾ú´Ù.
3)»ó´ëÀû ¼º´É
(Relative Performance)
´ëºÎºÐÀÇ ÇÕ¼º ±×¸®½º´Â ÇѰ¡Áö ÀÌ»óÀÇ ¹üÁÖ¿¡¼ Ź¿ùÇÑ ¼º´ÉÀ» º¸ÀÌ´Â ¹Ý¸é,Krytox®
±¤¹üÀ§ÇÑ Á¶°Ç ÇÏ¿¡¼µµ Ź¿ùÇÑ À±È°¼ºÀ» º¸À̸ç, ¾ÈÁ¤¼º(Stability),
ºÒ¿¬¼º(Non-flammability),
ÈÇÐÀûºÒȰ¼º(Chemical
Inertness) µîÀÇ Æ¯¼ºÀ» µ¿½Ã¿¡ Áö´Ï°í ÀÖ´Â À¯ÀÏÇÑ À±È°Á¦ÀÌ´Ù. |
- Typical Lubricants Wear and Load-Carrying Ability |
Oil type
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4-Ball wear
scar, mm*
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Falex Pin and V-Block
fail
load, lb
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Krytox® PFPAE
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0.36
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>4,500 #
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Chlorotrifluoroethylene
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0.37
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>4,500 #
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Fluorosilicone
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0.43
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1,150
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Diester
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0.61
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2,300
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Petroleum
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0.69
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1,300
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* 20 kgf, 107¡É (225¢µ), 1,200 rpm, 60 min, 52,100 steel on steel
# Test was stopped at 4,500 lb |
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4) ±Ø¾Ð ½ÃÇè °á°ú (Extreme Pressure Test) |
- Krytox® Extreme by The Timken EP Method |
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OK Load
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Score Load
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Scar Width at OK Load
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GPL 214
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30 Lb
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40 Lb
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1.271 mm
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GPL 215
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30 Lb
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40 Lb
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1.507 mm
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GPL 225
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50 Lb
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60 Lb
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1.109 mm
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"OK Load"´Â ¾î¶² ÈìÁý(scoring)À̳ª °íÂø(seizure)ÀÌ ¹ß»ý ¾øÀÌ ½Ã½ºÅÛ¿¡ °¡ÇØÁö´Â ÃÖ´ëÇÏÁßÀ̸ç,
"Score Load"´Â ÈìÁýÀ̳ª °íÂøÀÌ ¹ß»ýµÇ´Â ÃÖ¼Ò ÇÏÁßÀ̸ç, "Scar Width"´Â OK
Load¿¡¼ÀÇ Æò±Õ ±ÜÈû ±æÀÌÀÓ. |
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5) ºÒ¿¬¼º (Flammability)
Krytox® À±È°Á¦´Â ´ÜÁö, ź¼Ò(C), »ê¼Ò(O), ºÒ¼Ò(F)¸¸À» ±¸¼ºµÇ¾î ÀÖÀ¸¸ç, ¼ö¼Ò(H)°¡ Á¸ÀçÇÏÁö ¾Ê±â ¶§¹®¿¡ Krytox®´Â ºÒ¿¬¼ºÀ̸ç, 100%ÀÇ ¾×È ¶Ç´Â ±âÈ »ê¼ÒÇÏ¿¡¼µµ Ÿ°Å³ª ¿¬¼Ò¸¦ ÀÏÀ¸Å°Áö ¾Ê±â ¶§¹®¿¡ ¾ÈÁ¤¼ºÀÌ ¸Å¿ì ³ô´Ù.
6) ÈÇÐÀû ºÒȰ¼º (Chemically Inert)
Krytox® À±È°Á¦´Â »ê¼Ò¿¡ ´ëÇÑ ³»¼ºÀ» °®°í ÀÖÀ» »Ó¸¸ ¾Æ´Ï¶ó, ´Ù¾çÇÑ »ê¾÷¿¡¼ »ç¿ëµÇ´Â ¸ðµç ÈÇй°¿¡ ´ëÇÏ¿© »ç½Ç»ó ºÒȰ¼ºÀÌ´Ù.(ÈÇÐÀÛ¿ëÀ» ÀÏÀ¸Å°Áö ¾ÊÀ½) Krytox® À±È°Á¦´Â ´ëºÎºÐÀÇ ¿ëÁ¦¿¡ ´ëÇÏ¿© ³ìÁö ¾ÊÀ¸¸ç, ´ÜÁö High fluorinated fluid ¿Í Supercritical Fluids¿¡ ¿ëÇØµÈ´Ù.
7)
¿Àû, »êÈÀû ¾ÈÁ¤¼º
(Thermal, Oxidative Stability)
Krytox®
¿ÀÀÏÀÌ ¿ºÐÇØ ¹ß»ý ¿Âµµ´Â ½ÃÇè¹æ¹ý°ú ÃÖÃÊ ¿È(æëûù,
deterioration)Æ÷ÀÎÆ®¸¦ ¾î¶»°Ô ÃøÁ¤ÇÏ´À³Ä¿¡ µû¶ó ´Ù¸£´Ù.
Krytox® ¿ÀÀÏÀº DTA
(Differential Thermal Analysis)½ÇÇè¿¡ ÀÇÇÏ¸é ¿ºÐÇØ´Â °ø±âÀÇ Á¸Àç ÇÏ¿¡ ¾à 470¡É¿¡¼ ¹ß»ýÇÑ´Ù. Isoteniscope techniqueÀº ¾Ð·ÂÀ» Áõ°¡½ÃŲ »óÅ¿¡¼ ÃøÁ¤ÇÑ °ÍÀ¸·Î 355¡É¿¡¼ ÃÖÃÊ ºÐÇØ °úÁ¤À» º¸À̸ç, 355¡É¿¡¼ ºÐÇØ¼Óµµ´Â ¾à
0.03wt%/dayÀ̰í, 399¡É¿¡¼ ºÐÇØ¼Óµµ´Â ¾à
0.03wt%/dayÀÌ´Ù.
371¡É, 6½Ã°£ µ¿¾È Áú¼ÒºÐÀ§±â ÇÏ¿¡¼ ½ÃÇèÇÑ °á°ú
Krytox®´Â ÁßȰ¡(neutralization
number)ÀÇ Áõ°¡¸¦ º¸ÀÌÁö ¾Ê¾ÒÀ¸¸ç, Á¡µµÀÇ Áß´ëÇÑ º¯Èµµ ¾ø¾ú´Ù. ¶ÇÇÑ °ø±âÀÇ Á¸Àç´Â ´ëü·Î
Krytox®ÀÇ ºÐÇØ¿Âµµ¸¦ ³·ÃßÁö ¾Ê¾Ò´Ù. ±×·¯³ª ¸î¸î ±Ý¼Ó »êȹ°ÀÇ Á¸Àç ÇÏ¿¡ ¿ÀÀÏÀÇ ºÐÇØ ¿Âµµ´Â 288¡É¸¸Å ³·¾ÆÁú ¼ö ÀÖ´Ù.
ºÐÇØ°úÁ¤ Áß¿¡ ±â»óÀÇ ºÐÇØ¹°ÁúÀº Áõ¹ßµÇ°í, ³²Àº ¾×ü´Â Á¡µµ°¡ ¶³¾îÁöÁö¸¸, ¾î¶² ½½·¯Áö³ª Á¡Âø¼º ÀÜÀ¯¹°
(grummy deposits)Àº Çü¼ºµÇÁö ¾Ê´Â´Ù. Krytox® ¿ÀÀÏÀº ´ëºÎºÐÀÇ Àû¿ëºÐ¾ß¿¡¼ ¿¬¼ÓÀûÀ¸·Î 288¡É, ´Ü¼ÓÀûÀ¸·Î´Â 427¡ÉÀÇ ¿Âµµ¿¡¼ Àå±â°£ »ç¿ëÇÒ ¼ö ÀÖÀ½ÀÌ ÀÔÁõµÇ¾ú´Ù. |
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- Krytox® ±×¸®½ºÀÇ ¿Àû ¾ÈÁ¤¼º |
 |
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7) °í¹« / ÇÃ¶ó½ºÆ½ÀÇ »ó¿ë¼º
Krytox® ´Â ¸ðµç °í¹« ¾Á Àç·á ¹× ¿£Áö´Ï¾î¸µ ÇÃ¶ó½ºÆ½°ú ¿ì¼öÇÑ »ó¿ë¼º(Compatibility)À» Áö´Ï°í ÀÖ´Ù. ¾î¶² Àç·á¿Í Krytox®¸¦ ÇÔ²² »ç¿ëÇÒ °æ¿ì, »ç¿ë»óÀÇ Á¦ÇÑ¿ä¼Ò´Â ź¼ºÃ¼ ¶Ç´Â ÇÃ¶ó½ºÆ½ÀÇ ¿Àû ¾ÈÁ¤¼ºÀÌ´Ù.
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- Krytox® ´Â ¾Æ·¡¿Í °°Àº ź¼ºÃ¼ ¹× ÇÃ¶ó½ºÆ½°ú »ó¿ë¼ºÀ» Áö´Ï°í ÀÖ´Ù.
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Fluorosilicone
Ethylacrylate
Methyl Silicone
Viton A
Fluoroelastomer
Urethane
Hypalon Synthetic
Rubber
Hytrel Polyester
Elastomer
Butyl 325
Neoprene WRT
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Nycar 100(Buna N)
EPT, Peroxide Cure
Nodel Hydrocarbon
Rubber
Delrin Acetal
Zytel Nylon
Vespel
Teflon
Fluoropolymer
Kalrez
Fluoroelastomer*
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*15-20 vol% swelling at high temperatures when
immersed |
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9) ±Ý¼Ó°úÀÇ »ó¿ë¼º (Compatibility with Metal)
Krytox® À±È°Á¦´Â ³·Àº Ç¥¸éÀå·ÂÀ» °®°í Àֱ⠶§¹®¿¡ ±Ý¼ÓÇ¥¸é¿¡ ½±°Ô Á¥°Ô(wet)µÈ´Ù.
chemically
inertÇϱ⠶§¹®¿¡ 288¡ÉÀÌÇÏÀÇ ¿Âµµ¿¡¼´Â ±Ý¼Ó¿¡ ¾î¶°ÇÑ ¿ªÈ¿°ú¸¦ ÁÖÁö ¾Ê´Â´Ù. 288¡É ÀÌ»óÀÇ ¿Âµµ¿¡¼ ±Ý¼ÓÇÕ±Ý, ½ºÅ×Àθ®½º°, ¾Ë·ç¹Ì´½ÇÕ±Ý, ´ÏÄÌÇÕ±Ý, ÄÚ¹ßÆ®Çձݵî°ú »ó¿ëµÉ ¼ö ÀÖ´Ù.
10) »ê¼Ò¿ÍÀÇ »ó¿ë¼º
(Compatibility with Oxygen)
°í¿Â, °í¾Ð¿¡¼
PFPE(PerfluoroalkylPolyether)´Â ±âÈ ¹× ¾×È »ê¼Ò¿¡ ´ëÇÑ ³ôÀº ÀúÇ×·ÂÀ» °®´Â´Ù. °á°úÀûÀ¸·Î Krytox® ¿ÀÀÏÀº »ê¼Ò Á¦Á¶ »ê¾÷ ¹× »ê¼Ò¸¦ »ç¿ëÇÏ´Â Á¦Á¶½Ã¼³¿¡ ÀûÇÕÇÑ À±È°À¯ÀÌ´Ù. Krytox® ¿ÀÀÏÀº °©ÀÛ½º·¯¿î ÇÏÁß ÇÏ¿¡¼µµ ±âÈ»ê¼Ò¿Í ¹ÝÀÀÇÏÁö ¾ÊÀ¸¸ç, Ãæ°Ý Test¿¡¼µµ ¾×È»ê¼Ò(LOX), NO4, inhibited red fuming nitric acid µî°ú ¹ÝÀÀÇÏÁö ¾Ê´Â´Ù.LOX
impact test´Â
Marshall Space Flight CenterÀÇ MSFC-Spec-106B¿¡ ÀǰÅÇÏ¿© ½Ç½ÃµÇ¾úÀ¸¸ç, ASTM Bulletin 250¿¡ ¼¼úµÈ ¹æ¹ý¿¡ µû¶ó 214J/§²
(200ft-lb/in2)¿¡¼ ½Ç½ÃµÈ ´Ù¸¥ Ãæ°Ý½ÃÇèÀº ¾î¶°ÇÑ ¹ÝÀÀµµ º¸ÀÌÁö ¾Ê¾ÒÀ¸¸ç, ¶ÇÇÑ
Krytox® À±È°Á¦´Â
German FederalInstitute for Material Testing¿¡¼ °¡¾ÐÇÏ¿¡ ±âÈ ¹× ¾×È »ê¼Ò¿ÍÀÇ ¹ÝÀÀ¼º ½ÃÇèÀ» ½Ç½ÃÇÏ¿´À¸¸ç, ¾Æ·¡ Ç¥´Â Krytox® ¿ÀÀÏÀÇ »ê¼Ò¿ÍÀÇ »ó¿ë¼ºÀ» º¸¿©ÁØ´Ù.
|
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- À±È°Á¦ÀÇ »ê¼Ò¿ÍÀÇ »ó¿ë¼º |
Test Type
|
Temp.¡É (¢µ)
|
Pressure
Mpa (psi)
|
Energy,
Joules (ft-lb)
|
Test Result
|
Ignition in gaseous
oxygen(a)
|
400 (752)
|
13 (1,886)
|
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No ignition
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Pressure drop in gaseous
oxygen bomb(b)
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99 (210)
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0.7 (100)
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No pressure drop after
600 hr
|
Mechanical impact in
liquid oxygen
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Ambient
|
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98 (72)
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No reaction in 20(c.d.e)
|
Mechanical impact in
liquid oxygen
|
Ambient
|
|
122 (90)
|
No reaction in 10 trials(a)
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Mechanical impact in
liquid oxygen
|
Ambient
|
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736 (543)
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No reaction in multipl trials(f)
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(a) British Specification 3100 (b) American Society
for Testing and Materials, D-942 (c) Marshall Space Flight Center Specification
106B (d) National Aeronautics and Space Administration Handbook, 8060.1B, Test
13, Part 1 (e) American Society for Testing and Materials, D-2512 (f) West
German Federal Institute for Materials Testing (BAM), 8104-411 |
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11) ¹æ»ç´É ¾ÈÁ¤¼º (Radiation Stability)
Krytox® ¿ÀÀÏÀº À±È°Á¦ ¶Ç´Â Power Fluid·Î »ç¿ëµÇ´Â ¸¹Àº Á¦Ç°¿¡ ºñÇÏ¿© ¹æ»ç´É¿¡ ´ë´ÜÈ÷ ¾ÈÁ¤ÀûÀÎ Á¦Ç°ÀÌ´Ù. ÀϹÝÀûÀ¸·Î Krytox® ¿ÀÀÏÀ» ¹æ»ç¼±¿¡ ³ëÃâ½ÃÄ×À» ¶§ ÃÖ¼ÒÀÇ ºÐÇØ°¡ ¹ß»ýÇϸç, ÀÌ¿¡ µû¶ó Á¡µµÀÇ °¨¼Ò°¡ ¹ß»ýÇϸç Èֹ߼º Á¦Ç°ÀÌ Çü¼ºµÇÁö¸¸ ½½·¯Áö³ª °íü´Â »ý±âÁö ¾Ê´Â´Ù. Krytox® ¿ÀÀÏÀ» »ó¿Â/°ø±âÁß¿¡¼ 107radÀÇ ÀüÀÚºö¿¡ ³ëÃâ½ÃŲ Test¿¡¼ 8%ÀÇ Á¡µµÀúÇϰ¡ ÀϾ´Ù. ±×·¯³ª ¹æ»ç´É¿¡ ³ëÃâµÈ »ùÇÿ¡ ½½·¯Áö³ª ¿Ü°ü»óÀÇ º¯È´Â ÀϾÁö ¾Ê¾Ò´Ù.
12) »ý¹°ÇÐÀû Ư¼º (Biological Properties)
Krytox® ºÒ¼Ò¿ÀÀÏÀº »ý¹°ÇÐÀûÀ¸·Î ºÒȰ¼ºÀ̸ç, ½ÅÁø´ë»ç¹ÝÀÀÀ» ÀÏÀ¸Å°Áö ¾Ê´Â´Ù.¶ÇÇÑ »ýºÐÇØ µÇÁö ¾ÊÀ¸¸ç, ¾î¶°ÇÑ Å¸ÀÔÀÇ »ý¹°ÇÐÀûÀÎ ¼ºÀåÀ» µµ¿ÍÁÖÁö ¾Ê´Â´Ù.
13) »ê¿¡ ´ëÇÑ ¾ÈÁ¤¼º (Stability to Lewis Acids)
¸ðµç PFPE (Perfluoropolyalkylethers)´Â °í¿Â¿¡¼ Lewis Acids (aluminium
trichloride, iron(ferric),zinc chlorides, boron trichloride)ÀÇ Á¸Àç ÇÏ¿¡ ¾à°£ÀÇ depolymerizationÀÌ ÀϾÙ. ÀÌ·¯ÇÑ Lewis Acids´Â ÁÖ·Î ¹ÝµµÃ¼ Á¦Á¶°øÁ¤¿¡¼ º¼ ¼ö ÀÖÀ¸¸ç, Krytox® ¿ÀÀÏÀº Á¦Ç°ÀÇ µ¶Æ¯ÇÑ ºÐÀÚ±¸Á¶·Î ÀÎÇÏ¿© ´Ù¸¥ °æÀïÁ¦Ç°¿¡ ºñÇÏ¿© Lewis Acids¿¡ ´ëÇÏ¿© ¿µÇâÀ» ´ú ¹ÞÀ¸¸ç, µ¿ »çÇ×°ú °ü·ÃµÈ ÀÚ·á´Â ¿äû¿¡ µû¶ó Á¦°øµÉ ¼ö ÀÖ´Ù.
14)Àü±âÀû Ư¼º
(Electrical Properties)
Krytox® ¿ÀÀÏÀº ¿ì¼öÇÑ Àý¿¬Ã¼ÀÌ´Ù. ÷°¡Á¦°¡ ¾ø´Â Krytox® ±×¸®½ºÀÇ Àü±âÀû Ư¼ºÀº ¿ÀÀÏ¿¡ ±ÙÁ¢Çϳª, ¾î¶² ÷°¡Á¦ÀÇ Ã·°¡´Â Àü±âÀû Ư¼º¿¡ Áß´ëÇÑ º¯È¸¦ À¯¹ß½Ãų ¼ö ÀÖ´Ù. Àüµµ¼º(Conductivity)À» Áö´Ñ ±×¸®½º¸¦ ¿øÇÑ´Ù¸é powdered copper metal°ú °°Àº Àüµµ·ÂÀÌ Àִ ÷°¡Á¦¸¦ ÇÔÀ¯½ÃÄÑ Áõ°¡µÉ ¼ö ÀÖ´Ù. |
- Krytox OilÀÇ ÀϹÝÀûÀÎ Àü±âÀû Ư¼º |
Dielectric Breakdown Voltage, ASTM D-877, kV/0.1 inch 143
AZ 143 AA 143 AC
|
34 47 56
|
Specific Resistivity, ASTM D-257, ohm-cm
|
0.6 to 4.0 x 10E14
|
Dielectric Constant, ASTM D-150 at 10E2 to 10E5 hertz
|
2.1 to 2.2
|
Dielectric Constant, ASTM D-924 at 60 hertz, 25¡É :
|
2.2 to 2.4
|
Dissipation Factor, ASTM D-150, % at 10E2 to 10E5 hertz
|
3.0 to 7.0 x 10E-3
|
Volume Resistivity, ASTM D-1169, 25¡É, 500
V
|
2.3 to 550 x 10E12 ohm- cm
|
|
|
15) ȯ°æ¿¡ ´ëÇÑ ¿µÇâ (Environment)
Krytox®
ÀÇ »ç¿ëÀº ȯ°æ¿¡ µµ¿òÀ» ÁØ´Ù. ÀÌ´Â Á¦Ç° º»¿¬ÀÇ Æ¯¼ºÀÌ Àç»ýÀ» ÅëÇÏ¿© ȸº¹µÉ ¼ö ÀÖ¾î Æó±âÇϰųª ¼Ò°¢½Ãų Çʿ䰡 ¾ø±â ¶§¹®ÀÌ´Ù.ChemoursÀº »ç¿ëÇÑ ¿ÀÀÏÀ» ¼ö°ÅÇÏ¿© Àç»ý½ÃŰ´Â ÇÁ·Î±×·¥À» °¡Áö°í ÀÖÀ¸¸ç, ÀÌ·¯ÇÑ ÇÁ·Î±×·¥Àº ¿ÀÀÏÀÇ ¿ø°¡¸¦ ÁÙ¿©ÁÖ°í, ¾ÈÁ¤¼º ¹× ȯ°æÆÄ±«¹®Á¦¸¦ ÁÙ¿©ÁØ´Ù.
Àç»ýÇÁ·Î±×·¥À̶õ ÇÊÅ͸¦ »ç¿ëÇÏ¿© À¯Ã¼ÀÇ ¿À¿°¹°ÁúÀ» Á¦°ÅÇϰí, »õ·Î¿î À¯Ã¼°°ÀÌ À¯Ã¼¸¦ »õ·Ó°Ô ÇÏ´Â °ÍÀÌ´Ù.
Krytox®´Â valve
packing¿¡ »ç¿ëµÇ¾î ´©ÃâÀ» ÁÙÀ̸ç,
Krytox® ¿ÀÀϰú ±×¸®½ºÀÇ »ç¿ëÀº ȯ°æ¿¡ ´ëÇØ ¿µÇâÀ» Áִ źȼö¼Ò°è À±È°Á¦ÀÇ Çʿ伺À» Á¦°ÅÇØ ÁØ´Ù.
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