Polymer-based nanocomposites have been broadly investigated to improve its specific properties such as thermal and mechanical properties to use in different application areas. In this study, we aimed to ameliorate the desired physical properties of polyvinyl butyral (PVB) by introducing various amounts of silver (Ag) and cobalt (Co) nanoparticles (NPs) in the polymer matrix. The arc-discharge method submerged in liquid nitrogen was performed to synthesize the metal NPs. To produce hybrid nanocomposites, we demonstrated embedding Ag:Co nanoparticles in the PVB matrix via easy/low-cost solution casting process without any additional materials. In the results of analysis for nanocomposites, it was observed that there were improvements in thermal, mechanical and microwave absorption characteristics of the PVB polymer with interaction of NPs with the polymer. As a result of these interactions, the hybridization of PVB with the metal NPs resulted in the improved thermal stability since the glass transition temperature was increased from 45.6 to 55.1 °C. Besides, while the tensile strength (σ) of the bare PVB film was calculated as 20.52 MPa, the strength of the corresponding tensile strength (σ) of 1.0 wt.% Ag:Co nanocomposite film was improved to 43.41 MPa. Moreover, in order to determine the effect of these changes on the radar absorption feature of nanocomposites, one-dimensional A-Scan measurements were performed on 2–18 GHz frequency band. In the results, it was observed that 1.0%.wt Ag:Co nanocomposite film absorbed approximately 90% of the incoming energy. The characterization results revealed that a positive synergetic effect raised in the case of the modification of the PVB matrix with both Ag and Co NPs. In the light of these data, it was understood that the characteristics of PVB were improved with the NPs combining, and the usage area of that will also increase thanks to this improvement. These regenerated properties made the hybrid nanocomposite a promising substrate material with considerable potential applications for various transparent, flexible, and portable surface coatings.

基于聚合物的纳米复合材料已被广泛研究以改善其特定性能，例如热性能和机械性能，以用于不同的应用领域。在这项研究中，我们旨在通过在聚合物基质中引入不同数量的银 (Ag) 和钴 (Co) 纳米粒子 (NP) 来改善聚乙烯醇缩丁醛 (PVB) 所需的物理性能。进行浸没在液氮中的电弧放电法来合成金属纳米颗粒。为了生产混合纳米复合材料，我们展示了通过简单/低成本的溶液浇铸工艺将 Ag:Co 纳米颗粒嵌入 PVB 基质中，无需任何额外材料。在纳米复合材料的分析结果中，观察到在热、PVB 聚合物的机械和微波吸收特性以及 NP 与聚合物的相互作用。由于这些相互作用，PVB 与金属 NP 的杂化导致热稳定性提高，因为玻璃化转变温度从 45.6°C 增加到 55.1°C。此外，虽然计算出裸 PVB 薄膜的拉伸强度 (σ) 为 20.52 MPa，但相应的 1.0 wt.% Ag:Co 纳米复合薄膜的拉伸强度 (σ) 的强度提高到 43.41 MPa。此外，为了确定这些变化对纳米复合材料的雷达吸收特性的影响，在 2-18 GHz 频带上进行了一维 A 扫描测量。在结果中，观察到 1.0%.wt Ag:Co 纳米复合膜吸收了大约 90% 的传入能量。表征结果表明，在用 Ag 和 Co NPs 改性 PVB 基质的情况下，产生了积极的协同效应。根据这些数据可知，通过与NPs的组合，PVB的特性得到改善，使用面积也将因这种改善而增加。这些再生特性使混合纳米复合材料成为一种很有前途的基材材料，在各种透明、柔性和便携式表面涂层方面具有相当大的潜在应用。