Page 6 - Shimadzu IG-1000 Plus
P. 6

Measurement of Pigmented Ink Nano Particles






            Since nano particles tend to aggregate easily, it is important that they remain in a well-dispersed                       Measurement of Nano Particles Used in Sunscreen
            state for a long period of time without aggregating or precipitating.
                                                                                                                                      Ultrafine particles (nano particles) made of
            Highly absorbing particles make light difficult to pass through.                                                          titanium oxide and zinc oxide, etc. are used in
            With a Short Light Pass Cell (standard equipment), which                                                                  sunscreen to block exposure to ultraviolet rays.
            decreases absorption of samples, the IG-1000 Plus overcomes
            this restriction, making it a powerful tool for quality control in                                                        The use of such nano particles reduces the
            ink and paint industries.                                                                                                 scattering of visible light rays, allowing
                                                                                                                                      formulation of sunscreens with high
                                                                                                                                      transparency that do not turn white upon
                                                                                                                                      application.                                                          Titanium Oxide
                                                                                    Black

                                                                                                                                      Nano particles may easily aggregate to form larger particles,
                                                                                                                                      which increase the amount of scattered light, resulting in the
                                                                                                                                      loss of transparency. Therefore, it is important that the nano
                                                                                                                                      particles are maintained in a well-dispersed state.





                                                                                                                                                                                                              Zinc Oxide
                                                                                                                                                                                             Particle Size Distribution Measurement of Titanium Oxide and
                                                                                    Red                                                                                                                  Zinc Oxide Nano Particles

                                                                                                                                      Measurement of Nano Particles Used in Dye-Sensitized Solar Cell

                                                                                                                                      The dye-sensitized solar cell features a simple
                                                                                                                                      construction consisting of a plate to which a
                                                                                                                                      transparent electrode coated with a thin layer
                                                                                                                                      of dye-adsorbed porous titanium oxide dye is
                                                                                                                                      affixed, and an iodide electrolyte solution.

                                                                                    Blue                                              Low-cost mass-production can be realized
                                                                                                                                      because this type of solar cell does not require
                                                                                                                                      large-scale equipment, which is necessary for                         Titanium Oxide A
                                                                                                                                      conventional silicon-based solar cell
                                                                                                                                      manufacturing.



                                                                                                                                      The porous titanium oxide film is made by coating the plate with
                                                                                                                                      titanium oxide nano particles and then baking the coated plate.
                                                                                                                                      To ensure that a uniform film is created, the nano particles used
                                                                                   Yellow                                             to make the film must be maintained in a well-dispersed state,
                                                               Particle Size Distribution Measurement of Pigmented Ink Nano Particles
                                                                                                                                      and this is why particle size measurement becomes critical.
                                                                                                                                      The high-sensitivity IG-1000 Plus can easily measure                  Titanium Oxide B
                                                                                                                                      dye-adsorbed materials.                                Particle Size Distribution Measurement Results for Two Types of
                                                                                                                                                                                                        Titanium Oxide Nano Particles
                                                                                                                                                                                                                        IG-1000 Plus
      6                                                                                                                                                                                                                   Single Nano Particle Size Analyzer  7
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