Effects of solvents for luminophore on dynamic and static characteristics of sprayable polymer/ceramic pressure-sensitive paint
Effects of solvents for luminophore on dynamic and static characteristics of sprayable polymer/ceramic pressure-sensitive paint
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DOI：
10.1016/j.sna.2018.12.034
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发表时间：
2019-02-01
影响因子：
4.6
通讯作者：
Matsuda, Yu
中科院分区：
文献类型：
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作者：
Egami, Yasuhiro;Konishi, Shota;Matsuda, Yu
聚合物/陶瓷压敏漆（PC-PSP）是一种快速响应的光学压力传感器。PC-PSP由聚合物和颗粒组成，作为多孔粘合剂层的材料，以及压敏发光体。将聚合物和颗粒的溶液，然后将发光体的溶液分别施加到模型表面。PSP的响应时间主要取决于粘结剂层的厚度和氧扩散率。然而，我们发现，PC-PSP显示出显着不同的响应时间取决于溶剂的发光体，尽管相同的总厚度的粘合剂层。因此，我们研究了溶解发光体的溶剂对PC-PSP特性的影响，包括响应时间，压力灵敏度和发光寿命。与用能溶解聚合物的溶剂制备的PC-PSP相比，用难溶解粘合剂层中聚合物的发光体溶剂制备的PC-PSP实现了更快的响应时间。此外，还发现溶剂对PC-PSP的响应时间、发光强度和发光寿命都有影响。结果表明，溶剂溶解度的不同可能导致粘结剂层中多孔结构的不同状态和发光体的局部分布，从而导致PC-PSP的动态和静态特性的变化。(C)2019爱思唯尔B. V.保留所有权利。
Polymer/ceramic pressure sensitive paint (PC-PSP) is an optical fast-responding pressure sensor. PC-PSP consists of a polymer and particles as the material for a porous binder layer, and a pressure-sensitive luminophore. The solution of the polymer and particles, and then the solution of the luminophore are separately applied to a model surface. The response time of PSP is mainly determined by the thickness and oxygen diffusivity of the binder layer. However, we found that PC-PSP showed the significantly different response time depending on the solvents for the luminophore despite the same total thickness of the binder layer. Therefore, we investigated the effect of solvents in dissolving luminophore on the PC-PSP characteristics including response time, pressure sensitivity, and luminescence lifetime. PC-PSP's prepared with solvents for luminophore that poorly dissolve the polymer in the binder layer achieved a faster response time of those prepared with solvents that can dissolve the polymer. Furthermore, it was also found that the solvents caused the change in the response time, luminescence intensity and luminescence lifetime of PC-PSP. We have concluded that the different solubility of the solvents may provide the different state of porous structure and the local distribution of luminophore in the binder layer, and it causes the variation of the dynamic and static characteristics of PC-PSP. (C) 2019 Elsevier B.V. All rights reserved.