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¿µÁøÄÚÆÛ·¹ÀÌ¼Ç Á¾ÇÕÄ«´Ù·Î±× |
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¡Ø À̹ø ³»¿ëÀº Al2O3 particle size analysis using LUMIReader PSA ÁÖÁ¦·Î µ¶ÀÏ LUM »ç°¡ ÁøÇàÇÑ ¿þºñ³ª¸¦ Á¤¸®ÇÑ ³»¿ëÀÔ´Ï´Ù. |
Introduction
Al2O3 Áï ¾Ë·ç¹Ì³ª´Â ´Ù¹æ¸é¿¡¼ »ç¿ëµÇ´Â ¹°Áú·Î½á ÀÔµµ ºÐ¼®À» ÅëÇÑ Ç°Áú °ü¸®°¡ ¸Å¿ì Áß¿äÇÏ´Ù. ÀÔµµ¿¡ µû¶ó ¿ÏÁ¦Ç°ÀÇ Æ¯Â¡¿¡ ¿µÇâÀ» ³¢Ä¡±â ¶§¹®ÀÌ´Ù.
ÀÔµµ ºÐ¼®Àº ¿©·¯°¡Áö ¹æ¹ýÀÌ ÀÖÁö¸¸ ±× Áß µ¶ÀÏ LUM»ç ºÐ»ê¾ÈÁ¤¼º ºÐ¼®±â LUMiReader PSA ¸¦ ÀÌ¿ëÇÑ ÀÔµµ ºÐ¼®Àº ¸Å¿ì È¿°úÀûÀ̸ç Á¤È®ÇÑ °á°ú¸¦ º¸ÀåÇÑ´Ù.
¶ÇÇÑ ÀÔµµ ºÐ¼®À» À§ÇØ ½Ã·á Èñ¼®ÀÌ ÇÊ¿äÇÏÁö ¾ÊÀ¸¸ç ÃÖ¼ÒÇÑÀÇ ¹°¼º°ª ÀÔ·ÂÀ¸·Îµµ Á¤¹ÐÇÑ °á°ú¸¦ µµÃâÇÒ ¼ö ÀÖÀ¸¹Ç·Î ¼Õ½±°Ô ÀÔµµ ºÐ¼®ÀÌ °¡´ÉÇÏ´Ù.
LUMiReader PSA ´Â ÀÚ¿¬Áß·ÂÇÏ¿¡¼ ½Ã·áÀÇ Àü ±¸°£¿¡ ¼·Î ´Ù¸¥ ÆÄÀå 3°³¸¦ ¿¬¼ÓÀûÀ¸·Î Á¶»çÇÏ¿© °¢ ÆÄÀåÀÇ ½Ã·á¿¡ ´ëÇÑ Åõ°úµµ¸¦ ÃøÁ¤ÇÑ´Ù.
À̸¦ ÅëÇØ particle velocity distribution (size distribution, density distribution), fingerprints (separation behavior in detail), ³ª¾Æ°¡
separation kinetics & parameters for the original sample µµ ºÐ¼®ÇÒ ¼ö ÀÖ´Ù.
Method
Á¤È®ÇÑ ÀÔµµ¸¦ ¾Ë ¼ö ¾øÀ¸³ª fine powder, coarse powder ·Î ¸í½ÃµÈ µÎ ¾Ë·ç¹Ì³ª ÆÄ¿ì´õÀÇ ÀÔµµ¸¦ ÃøÁ¤ÇÏ¿´´Ù.
[1] fine powder ¸¦ ¼öºÐ»ê ÈÄ ¾Æ·¡ Á¶°ÇÀ¸·Î ÃøÁ¤ÇÏ¿´´Ù.
  (1) 60 profiles with 1s interval
  (2) 60 profiles with 10s interval
  (3) 200 profiles with 30s interval
±× °á°ú´Â ¾Æ·¡ ±×·¡ÇÁ¿Í °°´Ù.
ÃøÁ¤ Ãʱâ´Â Àû»ö ÇÁ·ÎÆÄÀÏ, ÃøÁ¤ Èıâ´Â ³ì»ö ÇÁ·ÎÆÄÀÏÀÌ´Ù. À̸¦ ÅëÇØ ÃøÁ¤ ½Ã°£¿¡ µû¶ó ÇÁ·ÎÆÄÀÏÀÌ Á¡Â÷ ÇÏÇâ À̵¿ÇϹǷΠ¾Ë·ç¹Ì³ª ¹Ì¼¼ ÆÄ¿ì´õ°¡ ħÀüÇÏ°í ÀÖÀ½À» ¾Ë ¼ö ÀÖ´Ù.
[2] Coarse powder ¸¦ 80% glucose solution À¸·Î ºÐ»ê ÈÄ ¾Æ·¡ Á¶°ÇÀ¸·Î ÃøÁ¤ÇÏ¿´´Ù.
  (1) 60 profiles with 1s interval
  (2) 60 profiles with 10s interval
  (3) 200 profiles with 30s interval
±× °á°ú´Â ¾Æ·¡ ±×·¡ÇÁ¿Í °°´Ù.
Á¶´ë ÀÔÀÚ ¶ÇÇÑ ¹Ì¼¼ ÀÔÀÚ¿Í ¸¶Âù°¡Áö·Î ½Ã°£¿¡ µû¶ó ÀÔÀÚ°¡ ħÀüÇÏ´Â °ÍÀ» transmission profile ÀÇ ÇÏÇâ À̵¿À¸·Î ¾Ë ¼ö ÀÖ´Ù.
Results
ÃøÁ¤µÈ transmission profile °ú kinetics ¸¦ ¹ÙÅÁÀ¸·Î LUMiReader PSA Àü¿ë ¼ÒÇÁÆ®¿þ¾î SEPView7 ¿¡¼ ÀÔµµ ºÐ¼®Àº ¾Æ·¡¿Í °°ÀÌ ¼öÇàÇÑ´Ù.
1. |
Transmission profile µ¥ÀÌÅÍ·Î particle velocities (v) ¸¦ ±¸ÇÑ´Ù. |
2. |
ÃøÁ¤ ÀÔÀÚ¿Í À¯Ã¼¿¡ ´ëÇÑ density, À¯Ã¼ÀÇ viscosity ¸¦ SEPView7 ¿¡ ÀÔ·ÂÇϸé Stoke¡¯s law ¿¡ ±Ù°ÅÇÏ¿© particle size (x) ¸¦ ±¸ÇÒ ¼ö ÀÖ´Ù. |
3. |
particle size (x) ¿¡ ´ëÇÑ volume based particle size distribution ¸¦ ±¸ÇÏ·Á¸é ÀÔÀÚ ¹× À¯Ã¼¿¡ ´ëÇÑ ±¼Àý·üÀÌ ÇÊ¿äÇÏ´Ù. »ç¿ëÀÚ°¡ º°µµ·Î ÀÔ·ÂÇÒ ÇÊ¿ä¾øÀÌ LUMiReader PSA ¿¡¼ ¿¬¼Ó Á¶»çÇÑ 3 ÆÄÀåÀÇ ±¤ Á¶»ç¿¡ µû¸¥ transmission (%) µ¥ÀÌÅ͸¦ ±Ù°Å·Î SEPView7 ¿¡¼ ±¼Àý·üÀ» ÀÚµ¿ °è»êÇÑ´Ù. |
4. |
À̸¦ Åä´ë·Î SEPView7 ¿¡¼´Â ISO 13317 ¿¡ ±Ù°ÅÇÏ¿© volume based particle size distribution À» ±¸ÇÑ´Ù. |
±× °á°ú ¾Æ·¡ ±×·¡ÇÁ¿Í °°ÀÌ volume weighted cumulative distribution À» ±¸ÇÏ¿´´Ù.
¡î coarse particle Àº broad distribution À» º¸À̸ç fine particle Àº very sharp distribution À» º¸ÀδÙ.
¡î µÎ ÀÔÀÚÀÇ D50; median (um) Àº °¢°¢ 31.6um, 14.0 um ·Î °è»êµÇ¾ú´Ù.
¡î ÀÌ·Î ÀÎÇÏ¿© »ç¿ëÀÚ´Â Á¤È®ÇÑ ÀÔµµ¸¦ ÆľÇÇÒ ¼ö ÀÖ¾ú´Ù.
¡î ¶ÇÇÑ D90 ÀÌ °¢°¢ 940.6 um, 19.5um ·Î½á ¾Õ¼ ±×·¡ÇÁ¿¡¼ È®ÀÎÇÑ distribution shape À» ¼öÄ¡·Î¼ ÆľÇÇÒ ¼ö ÀÖ´Ù.
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