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The Effect of Varying the Ratio of Hitenol to Noigen on the Clearing Temperature of the Gel

The Effect of Varying the Ratio of Hitenol to Noigen on the Clearing Temperature of the Gel. Samples (55:31:14). Samples (55:31:14). Samples (55:31:14). The value of the (cooling) clearing temperature is: 87.4812 The value of the (heating) clearing temperature is: 86.5312.

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The Effect of Varying the Ratio of Hitenol to Noigen on the Clearing Temperature of the Gel

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  1. The Effect of Varying the Ratio of Hitenol to Noigen on the Clearing Temperature of the Gel

  2. Samples(55:31:14)

  3. Samples(55:31:14)

  4. Samples(55:31:14)

  5. Sample A - 12.9:1

  6. The value of the (cooling) clearing temperature is: 87.4812 The value of the (heating) clearing temperature is: 86.5312 Sample A - 12.9:1

  7. Samples(55:31:14)

  8. Sample B - 10.1:1

  9. The value of the (heating) clearing temperature is: 86.5326 The value of the (cooling) clearing temperature is: 84.5354 Sample B - 10.1:1

  10. Samples(55:31:14)

  11. Sample C - 9.6:1

  12. The value of the (heating) clearing temperature is: 85.7208 The value of the (cooling) clearing temperature is: 82.4773 Sample C - 9.6:1

  13. Samples(55:31:14)

  14. Sample D - 8:1

  15. The value of the (heating) clearing temperature is: 80.1485 The value of the (cooling) clearing temperature is: 74.0822 Sample D - 8:1

  16. Samples(55:31:14)

  17. Sample E - 7.5:1

  18. The value of the (heating) clearing temperature is: 75.299 The value of the (cooling) clearing temperature is: 73.2607 Sample E - 7.5:1

  19. How concentration affects NIR results

  20. (Original )CNT dispersed in 1% surfactant solution, sonicated at 30 W for 15 minutes, centrifuged at 6000rpm for 30 minutes, decanted and process diluted to ~ 99% and then process repeated

  21. Diluted to 50% of Original Concentration

  22. Diluted to 25% of Original Concentration

  23. Observations • General shape the same • Intensities different • -most dilute solution has overall lower intensity as expected • -50% dilution shows increase in intensity at most optical frequencies but NOT at the frequency with the highest peak (???) […Saturation?] • Smoothness different • -smoothness of curve decreases as we move from highest to lowest concentration (possibly lower concentrations = increased sensitivity… or not?)

  24. How Power Affects dispersion of SWNT

  25. Sonication @ 12W for 15 minutes

  26. Sonication @ 27W for 15 minutes

  27. Observations • General shape the same • Peaks more well-defined in higher-power sonication

  28. http://www.swentnano.com/tech/docs/Procedure_for_dispersing_SWNT.pdfhttp://www.swentnano.com/tech/docs/Procedure_for_dispersing_SWNT.pdf

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