What method can be measured in the weight of titanium powder contained in the plastic
Scanning method: The test sample was subjected to sample preparation and observed in a scanning electron microscope. And the area ratio of titanium dioxide is converted into volume ratio and weight ratio. You can get titanium dioxide in the plastic content. The method error does not exceed 0.01%
Proportion method: find a sample of the same resin without adding titanium dioxide, weigh and calculate the specific gravity; as a comparative sample. Take the target sample, weigh and calculate the specific gravity. Comparison of the proportion of the two samples, that is, titanium dioxide content
Thermal decomposition method: the plastic sample in the high-precision balance on the weighing, and then greater than 650 degrees Celsius thermal decomposition. The remaining "ash" residue is titanium dioxide. Weighing titanium dioxide; and with the original sample weight ratio calculation, that is, the proportion of titanium dioxide in plastic
The method of detecting the content of titanium dioxide in the plastic (adding amount) can be summarized into three kinds: thermal decomposition method, specific gravity method and surface scanning method.
