Silver Nanoparticles Decorated in In Situ Reduced Graphene Oxide Nanohybrids Improved Properties in Poly(vinylidene fluoride)/Poly(methyl methacrylate) Blends

IF 3.4 4区 化学 Q2 POLYMER SCIENCE International Journal of Polymer Science Pub Date : 2024-03-23 DOI:10.1155/2024/1156880
Afifeh Khorramshokouh, Hesam Ramezani, Mehdi Sahami, Mehdi Sharif, Behzad Vaferi
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Abstract

In this paper, reduced graphene oxide decorated with silver nanoparticle (rGO-Ag) nanohybrids were prepared using an environmentally friendly approach and incorporated as reinforcement in poly(vinylidene fluoride)-poly(methyl methacrylate) blends via a melt mixing process. The microstructure of rGO-Ag nanohybrids and its effect on the microstructure, mechanical, thermal, and electrical properties of the PVDF/PMM/rGO-Ag was studied using Fourier transform infrared (FTIR), Raman spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), tensile, thermogravimetric analysis (TGA), and impedance spectroscopy methods. FTIR and TEM analysis confirmed that rGO-Ag successfully synthesized and Ag nanoparticles are located on the rGO surface. The tensile analysis demonstrated that incorporating 1 wt.% of rGO-Ag in PVDF/PMMA blend increases Young’s modulus and strength of nanocomposite up to 31% and 35%, respectively. The Halpin-Tsai model was also used for PVDF/PMMA/rGO-Ag nanocomposites, and the results confirmed that this model works well to predict the tensile modulus. Impedance spectroscopy analysis showed that the presence of rGO-Ag nanohybrids in PVDF/PMMA blend effectively enhanced the conductivity of PVDF/PMMA blend. TGA results demonstrated that the presence of rGO-Ag nanohybrids enhanced the thermal stability of nanocomposites and increased the degradation temperature of PVDF/PMMA/rGO-Ag nanocomposites in the range of 20°C compared to PVDF/PMMA blend.
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原位还原氧化石墨烯纳米杂质中的银纳米粒子改善了聚偏氟乙烯/聚甲基丙烯酸甲酯共混物的性能
本文采用一种环境友好型方法制备了银纳米粒子装饰的还原氧化石墨烯纳米杂化物(rGO-Ag),并通过熔融混合工艺将其作为增强材料加入到聚(偏氟乙烯)-聚(甲基丙烯酸甲酯)共混物中。采用傅立叶变换红外(FTIR)、拉曼光谱、X 射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、拉伸、热重分析(TGA)和阻抗光谱等方法研究了 rGO-Ag 纳米杂化物的微观结构及其对 PVDF/PMM/rGO-Ag 的微观结构、机械、热和电特性的影响。傅立叶变换红外光谱和透射电子显微镜分析证实 rGO-Ag 成功合成,且 Ag 纳米颗粒位于 rGO 表面。拉伸分析表明,在 PVDF/PMMA 混合物中加入 1 wt.% 的 rGO-Ag 可使纳米复合材料的杨氏模量和强度分别提高 31% 和 35%。Halpin-Tsai 模型也被用于 PVDF/PMMA/rGO-Ag 纳米复合材料,结果证实该模型能很好地预测拉伸模量。阻抗光谱分析表明,在 PVDF/PMMA 共混物中加入 rGO-Ag 纳米杂化物可有效提高 PVDF/PMMA 共混物的导电性。热重分析结果表明,rGO-Ag 纳米杂化物的存在增强了纳米复合材料的热稳定性,与 PVDF/PMMA 混合物相比,PVDF/PMMA/rGO-Ag 纳米复合材料在 20°C 范围内的降解温度有所提高。
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来源期刊
CiteScore
6.10
自引率
0.00%
发文量
55
审稿时长
>12 weeks
期刊介绍: The International Journal of Polymer Science is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles on the chemistry and physics of macromolecules.
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