Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 07, 2019 - November 08, 2019
In order to improve the response time of fast-responding pressure-sensitive paint, it has been considered that the overcoating of the dye solution on a pre-coated porous binder layer consisting of a polymer and particles is effective. This is because this overcoating method may distribute the dye near the surface of the binder layer; it reduces the apparent binder thickness. However, it was found that the polymer in the pre-coated binder layer was dissolved by the solvent of the dye solution and moved to the surface and covered the porous structures. It lowers the responsiveness of PSP. Therefore, we have investigated conventional “one-component” PSP again to avoid the above phenomena. We studied the influence of the particle diameter and spraying method on the responsiveness of PSP. As a result, “one-component” PSP achieved a response time of 16 μs by using TiO2 having a small particle diameter of 30 nm at particle ratio of 93 wt%.
