Silver nanoparticles incorporated polydimethylsiloxane nanocomposite film as hydrophobic infrared filters

IF 3.1 4区工程技术 Q2 POLYMER SCIENCE

Polymers for Advanced Technologies Pub Date : 2024-07-18 DOI:10.1002/pat.6511

Roshbe S. Calolsa, T. P. Sumangala, Sreeram K. Kalpathy, Tiju Thomas, Mousumi Upadhyay Kahaly, Ariful Rahaman

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引用次数: 0

Abstract

Infrared (IR) filters and screens find application in energy‐efficient buildings, windows, and solar panels. Such filters benefit solar cells by preventing efficiency losses caused by heating. Polymer‐nanocomposite films are good candidates for developing IR screens. Compared to prior research on IR filters, we show how the addition of silver nanoparticles (AgNPs) can improve the material's IR reflective nature while retaining high transmittance in the visible region. Polydimethylsiloxane (PDMS) film with AgNPs (~100 μm thick) is made using the doctor blade technique. We observe no transparency loss over the 0.005–0.02 vol% loading of AgNPs in PDMS, indicating the promising application of this transparent film. Furthermore, the distribution of AgNPs is found to be uniform, ensuring consistency, and preventing agglomeration. A contact angle of ~1120 is observed for these films, which is comparable to pristine PDMS film. Using a UV–Vis–NIR spectrophotometer, greater than 7.66% weighted average reflectance is observed in the near‐infrared (NIR) region and above 91.5% transmittance in the visible region. The precise role and influence of the functional group's presence were revealed by Fourier transform infrared (FTIR) spectroscopy. The thermal analysis (TGA) of the films revealed thermal stability of up to 400°C, which is comparable to pristine PDMS. Overall, the synergistic combination of AgNPs and PDMS produces a hydrophobic IR filter with enhanced optical characteristics and thermal stability.

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作为疏水性红外滤光片的银纳米颗粒聚二甲基硅氧烷纳米复合薄膜

红外线（IR）滤光片和屏幕可用于节能建筑、窗户和太阳能电池板。此类滤光片可防止加热造成的效率损失，从而使太阳能电池受益。聚合物纳米复合薄膜是开发红外屏的良好候选材料。与之前的红外滤光片研究相比，我们展示了银纳米粒子（AgNPs）的添加如何改善材料的红外反射特性，同时在可见光区域保持高透光率。我们使用刮刀技术制作了含有 AgNPs 的聚二甲基硅氧烷 (PDMS) 薄膜（厚度约为 100 μm）。我们观察到，在 PDMS 中添加 0.005-0.02 Vol% 的 AgNPs 时，透明度没有下降，这表明这种透明薄膜具有良好的应用前景。此外，我们还发现 AgNPs 的分布是均匀的，从而确保了一致性并防止了团聚。这些薄膜的接触角约为 1120，与原始 PDMS 薄膜相当。使用紫外-可见-近红外分光光度计，在近红外（NIR）区域观察到大于 7.66% 的加权平均反射率，在可见光区域观察到高于 91.5% 的透射率。傅立叶变换红外光谱（FTIR）揭示了官能团存在的确切作用和影响。薄膜的热分析（TGA）显示其热稳定性高达 400°C，与原始 PDMS 不相上下。总之，AgNPs 与 PDMS 的协同结合产生了一种疏水性红外滤光片，其光学特性和热稳定性都得到了增强。

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来源期刊

Polymers for Advanced Technologies 工程技术-高分子科学

CiteScore

6.20

自引率

5.90%

发文量

337

审稿时长

2.1 months

期刊介绍： Polymers for Advanced Technologies is published in response to recent significant changes in the patterns of materials research and development. Worldwide attention has been focused on the critical importance of materials in the creation of new devices and systems. It is now recognized that materials are often the limiting factor in bringing a new technical concept to fruition and that polymers are often the materials of choice in these demanding applications. A significant portion of the polymer research ongoing in the world is directly or indirectly related to the solution of complex, interdisciplinary problems whose successful resolution is necessary for achievement of broad system objectives. Polymers for Advanced Technologies is focused to the interest of scientists and engineers from academia and industry who are participating in these new areas of polymer research and development. It is the intent of this journal to impact the polymer related advanced technologies to meet the challenge of the twenty-first century. Polymers for Advanced Technologies aims at encouraging innovation, invention, imagination and creativity by providing a broad interdisciplinary platform for the presentation of new research and development concepts, theories and results which reflect the changing image and pace of modern polymer science and technology. Polymers for Advanced Technologies aims at becoming the central organ of the new multi-disciplinary polymer oriented materials science of the highest scientific standards. It will publish original research papers on finished studies; communications limited to five typewritten pages plus three illustrations, containing experimental details; review articles of up to 40 pages; letters to the editor and book reviews. Review articles will normally be published by invitation. The Editor-in-Chief welcomes suggestions for reviews.