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¿µÁøÄÚÆÛ·¹ÀÌ¼Ç Á¾ÇÕÄ«´Ù·Î±× |
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Introduction
°í±Þ Ư¼ö ¿ëÁöÀÇ »ý»êÀ» À§Çؼ´Â ¿ä±¸µÇ´Â Ç°Áú ¶Ç´Â ±× ÀÌ»óÀÇ Ç°Áú °³¼±À» ´Þ¼ºÇϱâ À§ÇØ
¼¿·ê·Î¿À½º¿Í ÈÇР÷°¡Á¦¸¦ °æÁ¦ÀûÀÌ°í È¿°úÀûÀ¸·Î »ç¿ëÇÏ´Â °ÍÀÌ ¹Ù¶÷Á÷ÇÕ´Ï´Ù.
ÅõÀԵǴ ¿ø·áÀÇ ºñ¿ëÀ» ÃÖÀûÈ Çϱâ À§Çؼ´Â ¿ø·á È¥ÇÕ¹°³» ±¸¼º ¿ä¼Ò °£ÀÇ »óÈ£ÀÛ¿ë°ú ±×°ÍµéÀÇ Ä§° Çൿ,
ƯÈ÷ ´Ù¾çÇÑ ¹Ì¼¼ ÀÔÀÚ ÇÔ·®À» °¡Áø ´Ü¼¶À¯¿Í À弶À¯ ÆÞÇÁ °£ÀÇ »óÈ£ÀÛ¿ëÀ» Á¤·®ÈÇÏ´Â °ÍÀÌ ¸Å¿ì Áß¿äÇÕ´Ï´Ù.
STEP ±â¼úÀ» ±â¹ÝÀ¸·Î ÇÏ´Â Multisample Analytical Centrifugation ¹æ¹ýÀº ´Ù¾çÇÑ ¼¿·ê·Î¿À½º ºÐ»ê¾×ÀÇ Ä§° ÇൿÀ»
Á¤¼ºÀû ¹× Á¤·®ÀûÀ¸·Î Ư¼ºÈÇÏ´Â µ¥ ÀûÇÕÇÕ´Ï´Ù. ¾Æ·¡ ¿¹½Ã°¡ À̸¦ º¸¿©ÁÝ´Ï´Ù.
[1] Fingerprinting of the Dispersions - Different Sedimentation Types
¡á Polydisperse Sedimentation - Cellulose Dispersion A
Cellulose dispersion A, Evolution of transmission profiles with time at 2300 xg, 20 ¡ÆC.
À§ Åõ°úµµ ÇÁ·ÎÆÄÀÏ (Transmission Profile) À» º¸¸é, ÃþºÐ¸® °úÁ¤Àº ½ÉÇÑ ´ÙºÐ»ê¼º ħ°Çö»ó (Polydisperse Sedimentation) À» º¸ÀÌ°í ÀÖÀ¸¸ç
ÀÔÀÚµéÀÌ ¼·Î ´Ù¸¥ ¼Óµµ·Î À̵¿ÇÏ°í ÀÖ´Ù´Â °ÍÀ» ¾Ë ¼ö ÀÖ½À´Ï´Ù.
±×·¯³ª ÀúÀå Áß¿¡ ÀÖ´Â Cellulose ºÐ»ê¾×À» Åõ°úµµ ºÐ¼®À» Çغ¸¸é ´õ Å« ÀÔÀÚ ¶Ç´Â ´õ ³ôÀº ¹ÐµµÀÇ °íüÀÇ Ä§°Çö»ó¿¡ ÀÇÇØ ÀÔÀÚµéÀÌ ¼·Î ºÐ¸® (Segregation) ÇÏ´Â
Çö»óÀÌ ¹ß»ýÇÒ ¼öµµ ÀÖ½À´Ï´Ù.
Transmission Profiles ÀÇ Ãʱ⠺κÐÀ» º¸¸é (±×·¡ÇÁÀÇ First Profile ºÎºÐ) ´ëºÎºÐ large particle fraction µéÀÌ Ä§°µÇ¾ú´Ù´Â °ÍÀ» ¾Ë ¼ö Àִµ¥,
ÀÌ´Â Tube Cell ¹Ù´Ú ±Ùó¿¡ »ý¼ºµÈ ³·Àº Transmission Zone ÀÌ ÀÌ·¯ÇÑ Çö»óÀ» ÀǹÌÇÏ°í ÀÖ½À´Ï´Ù.
ÀÌ ºÎºÐ¿¡ ´ëÇÑ ´õ »ó¼¼ÇÑ ºÐ¼®À» ¿øÇÏ¸é ½Ã·á¸¦ 6 g °ª ÀÌÇÏÀÇ ³·Àº Áß·ÂÇÏ¿¡¼ ÃøÁ¤Çϸé Á¤È®È÷ ¾Ë ¼ö ÀÖ½À´Ï´Ù.
ÀÌ Transmission Profile ¿¡¼ »ó´Ü ºÎÀ§ÀÇ Åõ°úµµ ±×·¡ÇÁ°¡ ¼öÆòÀ¸·Î »ó´ÜÀ¸·Î ¿Ã¶ó°¡´Â ÇüŸ¦ º¸ÀÌ°í Àִµ¥ ÀÌ´Â
¹Ì¼¼ ÀÔÀÚµéÀÌ ¼·Î ´Ù¸¥ ¼Óµµ·Î ºÐ¸®µÇ¾ú´Ù´Â °ÍÀ» ÀǹÌÇÕ´Ï´Ù (fine fraction ÀÌ ³ÐÀº ±¸¿ª¿¡¼ º»Æ÷).
ÀÌ·¯ÇÑ Polydisperse Sedimentation Àº Particle Aggregation ÀÌ ÀϾÁö ¾Ê´Â ¾ÈÁ¤µÈ »óÅÂÀÇ Colloid Dispersion ¿¡¼ ÁÖ·Î º¸¿©Áö´Â Ư¼ºÀÔ´Ï´Ù.
¡á Zone Sedimentation - Cellulose Dispersion B
Cellulose dispersion B, Evolution of transmission profiles with time at 2300 xg, 20 ¡ÆC.
ÀÌ Transmission profiles ¿¡¼´Â ¸ðµç ÀÔÀÚµéÀÌ °ÅÀÇ °°Àº ¼Óµµ·Î ħ°ÇÏ°í ÀÖ´Â ¾ç»óÀ» º¸¿©ÁÖ°í Àִµ¥
ÀÌ·± ¸ð½ÀÀº Zone Sedimentation, ±×¸®°í ÀÔÀÚµéÀÌ »óÈ£ °áÇÕÇÏ¿© »ý±ä Flocculated Particle µéÀÌ Network À» Çü¼ºÇÑ ÈÄ Ä§°Çϴ Ư¼º µÎ °¡Áö¸¦ º¸¿©ÁÖ°í ÀÖ½À´Ï´Ù.
°¢ ÇÁ·ÎÆÄÀÏ »çÀÌÀÇ °£°ÝÀÌ ÁÙ¾îµé°í ÀÖ´Â °ÍÀº Ãß°¡ ¾ÐÃà¿¡ ÀÇÇØ °¢ ÃþµéÀÌ ¾ÐÃà (compaction) µÇ°í ÀÖ´Ù´Â °ÍÀ» ÀǹÌÇÕ´Ï´Ù.
ħ° ÃþÀÇ ¾ÐÃà Á¤µµ´Â °¢°¢ ´Ù¸¥ ¿ø½É·Â (´Ù¸¥ ·ÎÅÍ ¼Óµµ) À» °¡ÇØÁÖ¸é ¹Ù·Î ¾Ë ¼ö ÀÖ½À´Ï´Ù.
[2] Fast Ranking of Demixing Stability by Integral Transmission
Separation kinetics (Change of transmission with time) for the range 107 - 119 mm, at 2300 xg, 20 ¡ÆC
¼¿·ê·Î¿À½º ºÐ»ê¾× A, C, D ´Â °íÇüºÐ ÇÔ·® (TG) ÀÌ ´Ù¸£°í, »ùÇà B ´Â ÈÇÐ Á¶¼ºÀÌ ´Ù¸¨´Ï´Ù.
ÃøÁ¤µÈ Transmission ±×·¡ÇÁ¸¦ ¹ÙÅÁÀ¸·Î Integration ºÐ¼® tool À» »ç¿ëÇÏ¿© ³×°³ÀÇ »ùÇà °£ÀÇ Demixing ÁøÇà ¼Óµµ¸¦ ºñ±³ÇÏ¿´½À´Ï´Ù.
À§ÀÇ ±×·¡ÇÁ°¡ º¸¿©ÁÖµíÀÌ 5ºÐ À̳»ÀÇ Integral Transmission Curves ÀÇ ±â¿ï±â°¡ Å©¸é Ŭ¼ö·Ï ½Ã·áÀÇ ¸¼¾ÆÁü (Clarification) Çö»óÀÌ ºü¸£°Ô ³ªÅ¸³ª´Â °ÍÀ» ÀǹÌÇÕ´Ï´Ù.
Áï ½Ã·á C´Â °¡Àå ¿Ï¸¸ÇÑ ±â¿ï±â¸¦ ³ªÅ¸³»°í ÀÖÀ¸¹Ç·Î ´Ù¸¥ ½Ã·á¿¡ ºñÇØ Sedimentation ÀÌ ¸Å¿ì ´À¸®°Ô ÁøÇàµÇ°í ÀÖ°í Demixing ¿¡ ´ëÇØ °¡Àå ¾ÈÁ¤ÀûÀÎ ºÐ»ê »óŸ¦ À¯ÁöÇÏ°í ÀÖ´Ù´Â °ÍÀ» ¾Ë ¼ö ÀÖ½À´Ï´Ù.
Ãß°¡·Î »ó±â ½Ã·á¿¡ ´ëÇØ ÀÔÀÚ Å©±â ºÐÆ÷µµ¸¦ ÃøÁ¤ÇÏ¿´°í ±× °á°ú¿¡µµ ³×°³ ½Ã·á °£ÀÇ µ¿ÀÏÇÑ Â÷ÀÌ°¡ ÃøÁ¤µÇ¾ú½À´Ï´Ù.
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