Recycled PET-based thermochromic nanofiber membranes for overheating detection

IF 4 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical and Quantum Electronics Pub Date : 2024-12-14 DOI:10.1007/s11082-024-07977-1

Mahmut Taş

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引用次数: 0

Abstract

Thermochromic materials offer unique advantages in temperature sensing applications due to their ability to change color in response to temperature variations. In this study, we successfully fabricated three different mercury-based thermochromic compounds, each with distinct critical temperatures (47, 73, 142 °C respectively). These compounds were incorporated into recycled polyethylene terephthalate (r-PET) to create nanocomposite membranes via electrospinning. The resulting thermochromic materials were characterized using Raman spectroscopy and differential scanning calorimetry (DSC) to assess the chemical and thermal properties. Morphological and elemental analyses of nanocomposite nanofibre membranes were conducted using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (SEM-EDS). Moreover, the thermochromic response of the membranes was quantitatively evaluated through UV-visible spectroscopy, enabling the digitalization of the color change associated with temperature change. Additionally, the surface wettability of the nanocomposite membranes was investigated by contact angle measurements. These thermochromic nanocomposite membranes, based on recycled PET, demonstrate significant potential for applications in overheating detection systems, offering another approach to temperature-sensitive materials.

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用于过热检测的基于回收 PET 的热致变色纳米纤维膜

热致变色材料能够随温度变化而改变颜色，因此在温度传感应用中具有独特的优势。在这项研究中，我们成功制备了三种不同的汞基热致变色化合物，每种化合物都具有不同的临界温度（分别为 47、73 和 142 °C）。将这些化合物加入回收的聚对苯二甲酸乙二酯（r-PET）中，通过电纺丝技术制成纳米复合膜。利用拉曼光谱和差示扫描量热法（DSC）对所制备的热致变色材料进行了表征，以评估其化学和热性能。使用扫描电子显微镜（SEM）和能量色散 X 射线光谱（SEM-EDS）对纳米复合纳米纤维膜进行了形态和元素分析。此外，还通过紫外可见光谱对膜的热变色反应进行了定量评估，从而实现了与温度变化相关的颜色变化的数字化。此外，还通过接触角测量法研究了纳米复合膜的表面润湿性。这些基于回收 PET 的热致变色纳米复合膜在过热检测系统中的应用潜力巨大，为温度敏感材料提供了另一种方法。

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来源期刊

Optical and Quantum Electronics 工程技术-工程：电子与电气

CiteScore

4.60

自引率

20.00%

发文量

810

审稿时长

3.8 months

期刊介绍： Optical and Quantum Electronics provides an international forum for the publication of original research papers, tutorial reviews and letters in such fields as optical physics, optical engineering and optoelectronics. Special issues are published on topics of current interest. Optical and Quantum Electronics is published monthly. It is concerned with the technology and physics of optical systems, components and devices, i.e., with topics such as: optical fibres; semiconductor lasers and LEDs; light detection and imaging devices; nanophotonics; photonic integration and optoelectronic integrated circuits; silicon photonics; displays; optical communications from devices to systems; materials for photonics (e.g. semiconductors, glasses, graphene); the physics and simulation of optical devices and systems; nanotechnologies in photonics (including engineered nano-structures such as photonic crystals, sub-wavelength photonic structures, metamaterials, and plasmonics); advanced quantum and optoelectronic applications (e.g. quantum computing, memory and communications, quantum sensing and quantum dots); photonic sensors and bio-sensors; Terahertz phenomena; non-linear optics and ultrafast phenomena; green photonics.