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¿µÁøÄÚÆÛ·¹ÀÌ¼Ç Á¾ÇÕÄ«´Ù·Î±× |
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Introduction     |
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STEP Technology ¿¡ ±â¹ÝÀ» µÐ Multisample analytical centrifugation Àº ´Ù¾çÇÑ CNT (Carbon Nano tube)
ºÐ»ê¹° (dispersion) ÀÇ ÀÔµµºÐ¼® (particle size analysis) ¿¡ ¸Å¿ì À¯¿ëÇÏ°Ô »ç¿ëµÈ´Ù. |
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Measurement |
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ionic liquid (1-butyl-3-methylimidazoliumtetrafluoroborate) ¿¡¼ ºÐ»êµÈ Multiwalled Carbon Nanotube (MWNT) A ¸¦
0.005% m/m ·Î Èñ¼®ÇÑ ÈÄ Tube ¿¡ ³Ö°í LUMiSizer ÀÇ ¿Âµµ¸¦ 7¡É ·Î À¯ÁöÇÏ¸é¼ È¸Àü·ÂÀ» 36 - 2300 xg ·Î ´Ü°èº°·Î Áõ°¡½ÃÅ°¸é¼
Transmission Profiles ¸¦ ´ÙÀ½°ú °°ÀÌ ±¸ÇÏ¿´´Ù.
MWNT A ÀÇ Transmission Profile Àº ÀüÇüÀûÀÎ polydisperse sedimentation À» º¸¿©ÁÖ°í ÀÖ´Ù.
STEP Technology ¸¦ ÀÌ¿ëÇÏ´Â particle size distribution ÀÇ ÃøÁ¤Àº Tube ÀÇ ÀÏÁ¤ À§Ä¡¿¡¼ ÃøÁ¤ÇÏ´Â
Costant Position ÃøÁ¤¹ý°ú ÀÏÁ¤½Ã°£ÀÌ Áö³ ÈÄ¿¡ ÃøÁ¤ÇÏ´Â Costant Time ÃøÁ¤¹ýÀÌ
ÀÖÀ¸³ª ¿©±â¼´Â Constant Position ¹æ¹ýÀ» ÀÌ¿ëÇÏ¿© ÃøÁ¤ÇÏ¿´´Ù. |
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Results |
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ISO 13318 ±ÔÁ¤¿¡ µû¶ó Tube ÀÇ 123 mm ¿Í 125 mm À§Ä¡¿¡¼ ÃøÁ¤ÇÑ particle size distribution Àº ´ÙÀ½°ú °°´Ù.
Cumulative intensity weighted particle size distribution of different MWNT products, a and b - repeat determination
Intensity weighted density distribution for MWNT A
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Summary |
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¸ðµç sample µéÀº ¸Å¿ì ³ÐÀº ¹üÀ§ÀÇ ÀÔÀÚºÐÆ÷µµ¸¦ º¸ÀÌ°í Àִµ¥ ÀÌ´Â MWNT A ÀÇ Transmission Profile ¿¡¼
¿¹»óÇÑ ³»¿ë°ú ÀÏÄ¡ÇÏ°í ÀÖ´Ù. MWNT A ´Â 300 - 3,000 nm ÀÇ ÀÔÀÚºÐÆ÷µµ¸¦ º¸ÀÌ´Â ¹Ý¸é MWNT B ´Â 500 - 10,000 nm ÀÇ
´õ Å« ÀÔÀÚºÐÆ÷µµ¸¦ º¸ÀÌ°í ÀÖ´Ù. ´Ù¸¥ ³óµµ¿¡¼ ¹Ýº¹ÀûÀÎ ½ÇÇèÀ» ÇÏ¿©µµ °á°ú´Â ÀÏÁ¤ÇÏ°Ô ³ªÅ¸³ª°í ÀÖ´Ù.
LUMiSizer ÀÇ SEPView software ´Â measurement protocol, different distribution types, harmonic mean values,
standard deviation, fit functions µî ´Ù¾çÇÑ ºÐ¼® µ¥ÀÌÅ͸¦ Á¦°øÇÑ´Ù.
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