Nano blue tungsten oxide may be applied for producing nano-ceramic color master so that the color master will have excellent heat resistance, dispersity and weather resistance, and therefore can be used for manufacturing heat insulation films or heat insulation sheets.
Particle Size Distribution and Loose Specific Weight of Blue Tungsten Oxide
APT was used as raw material and calcined under H2 atmosphere to prepare blue tungsten oxide. By testing, it was found that the uniformity of blue tungsten oxide particles was good in the temperature range of 400~500°C. Under this process condition, the average particle size, particle size distribution, and loose specific weight of blue tungsten oxide were tested and found that the uniformity of blue tungsten oxide is better, and the trend of the particle size distribution curve is the same. Within each temperature range, the distribution of particle sizes is mainly between 10μ and 40μ, accounting for more than 90% of the total amount. However, as the temperature increases, particles larger than 40μ increase slightly, and the particle size uniformity worsens. Through the particle size distribution curve, the average diameter of the particle size was calculated, and it was found that the particle size increased with increasing temperature, but the effect was not obvious.
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