In this study have been prepared optically transparent polymeric nanocomposites based on PP/YSZ by combination of ex-situ and hot pressing methods. The structure of the synthesized nanocomposites was studied by XRD analysis, UV spectroscopy, scanning electron microscopy. The optical and photoluminescent (PL) properties of polymer nanocomposites were investigated. It was found that with an increase in the concentration of YSZ nanoparticles in the PP matrix to 3% of the content of nanoparticles, the PL intensity increases, with a further increase in the nanoparticles content, the PL intensity decreases. This is explained by the fact that with an increase in the concentration of YSZ nanoparticles, their size increases and their specific surface decreases, and this leads to a decrease in the contacting region between the polymer and the nanoparticle. A decrease in the interphase boundary leads to a decrease in interphase interactions, and this in turn leads to a change in the PL intensity. It was also shown that the PL intensity for nanocomposites at all wavelengths increases with increasing annealing temperature to 120°C, and then decreases. Possible reasons for a significant increase in the PL intensity after thermal annealing are the redistribution of charge carriers between levels in the band gap or the recharging of recombination centers and the removal of organic compounds adsorbed on the surface of nanocomposites.

在这项研究中，已经通过异地和热压方法的组合制备了基于PP / YSZ的光学透明聚合物纳米复合材料。通过XRD分析，紫外光谱，扫描电子显微镜研究了合成的纳米复合材料的结构。研究了聚合物纳米复合材料的光学和光致发光（PL）特性。发现随着PP基质中YSZ纳米颗粒的浓度增加至纳米颗粒含量的3％，PL强度增加，随着纳米颗粒含量的进一步增加，PL强度降低。这可以通过以下事实来解释：随着YSZ纳米颗粒浓度的增加，其尺寸增加，其比表面积减小，并且这导致聚合物与纳米颗粒之间的接触区域减小。相间边界的减小导致相间相互作用的减小，这进而导致PL强度的变化。还显示出，在所有波长下，纳米复合材料的PL强度随着退火温度升高至120°C而增加，然后降低。热退火后PL强度显着增加的可能原因是带隙中能级之间电荷载流子的重新分布或重组中心的重新充电以及纳米复合材料表面吸附的有机化合物的去除。然后减少。热退火后PL强度显着增加的可能原因是带隙中能级之间电荷载流子的重新分布或重组中心的重新充电以及纳米复合材料表面吸附的有机化合物的去除。然后减少。热退火后PL强度显着增加的可能原因是带隙中能级之间电荷载流子的重新分布或重组中心的重新充电以及纳米复合材料表面吸附的有机化合物的去除。