One-step polymerization of polyvinyl alcohol/cashew gum/polypyrrole/copper oxide nanocomposites for high-performance flexible films in optoelectronics

IF 3.8 4区工程技术 Q2 CHEMISTRY, APPLIED

Journal of Vinyl & Additive Technology Pub Date : 2024-11-18 DOI:10.1002/vnl.22179

Ayisha Jemshiya Kalladi, K. Jayalakshmi, M. T. Ramesan

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引用次数: 0

Abstract

A ternary blend nanocomposite composed of polyvinyl alcohol/cashew gum/polypyrrole (PVA/CG/PPy) with varying contents of copper oxide (CuO) nanoparticles was synthesized via an in situ polymerization method, using water as an eco-friendly solvent. Fourier-transform infrared spectroscopy (FTIR), UV–visible spectroscopy, field emission scanning electron microscopy (FE-SEM), x-ray diffraction (XRD), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) were used to characterize the ternary blend nanocomposites. FTIR and UV–visible spectra demonstrated strong intermolecular interactions between the functional groups of the PVA/CG/PPy blend and the CuO nanoparticles. XRD patterns revealed that the CuO nanofillers were arranged in a structured manner within the ternary blend matrix. FE-SEM confirmed the uniform dispersion and structured arrangement of CuO nanofillers at a concentration of 3 wt% within the blend matrix. TGA and DSC results showed that the addition of CuO nanoparticles to the PVA/CG/PPy blend improved both the thermal stability and glass transition temperature of the blend matrix. Electrical properties improved with CuO content up to 3 wt%, resulting in enhanced conductivity, an increased dielectric constant, and reduced activation energy. The highest tensile strength, 13.76 MPa, was also observed at this concentration. However, properties declined beyond 3 wt% due to agglomeration, making 3 wt% the ideal concentration for maximum performance. This study highlights the potential of PVA/CG/PPy/CuO nanocomposites for applications requiring improved electrical properties and thermal stability, particularly in flexible electronics and energy storage devices.

Highlights

Eco-friendly synthesis of PVA/CG/PPy/CuO biopolymer nanocomposite films
Improvement in morphological, and optical properties of PVA/CG/PPy/CuO films.
CuO nanofillers magnify the thermal properties of the pristine PVA/CG/PPy
Conductivity and dielectric characteristics: frequency and temperature dependence explored.
PVA/CG/PPy/CuO nanocomposite films: pliable contenders unveiling industrial potentials.

Abstract Image

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聚乙烯醇/腰果胶/聚吡咯/氧化铜纳米复合材料一步聚合制备高性能光电柔性薄膜

以水为环保溶剂，采用原位聚合法制备了不同氧化铜含量的聚乙烯醇/腰果胶/聚吡咯三元共混纳米复合材料（PVA/CG/PPy）。采用傅里叶变换红外光谱（FTIR）、紫外可见光谱（uv -可见光）、场发射扫描电镜（FE-SEM）、x射线衍射（XRD）、热重分析（TGA）和差示扫描量热法（DSC）对三元共混纳米复合材料进行了表征。FTIR和uv -可见光谱表明，PVA/CG/PPy共混物与CuO纳米颗粒的官能团之间存在很强的分子间相互作用。XRD分析结果表明，纳米CuO填料在三元共混基体中呈有序排列。FE-SEM证实，当浓度为3wt %时，CuO纳米填料在共混基体内分布均匀，排列有序。TGA和DSC结果表明，在PVA/CG/PPy共混物中加入CuO纳米颗粒，提高了共混物基体的热稳定性和玻璃化转变温度。当CuO含量达到3wt %时，电性能得到改善，电导率提高，介电常数增加，活化能降低。在此浓度下，拉伸强度最高，为13.76 MPa。然而，由于团聚，性能下降超过3wt %，使3wt %的理想浓度达到最大性能。这项研究强调了PVA/CG/PPy/CuO纳米复合材料在需要改善电性能和热稳定性的应用方面的潜力，特别是在柔性电子和储能设备方面。PVA/CG/PPy/CuO生物高分子纳米复合膜的生态合成CuO纳米填料放大了原始PVA/CG/PPy的热性能。电导率和介电特性：探索频率和温度的依赖关系。PVA/CG/PPy/CuO纳米复合薄膜：展现工业潜力的柔韧竞争者。

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来源期刊

Journal of Vinyl & Additive Technology 工程技术-材料科学：纺织

CiteScore

5.40

自引率

14.80%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.