Synthesis of the polyethylene glycol solid-solid phase change materials with a functionalized graphene oxide for thermal energy storage |
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| Institution: | 1. National Engineering Technology Center for Insulation Materials & State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang, 621010, PR China;2. Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang, 621900, PR China;3. Sichuan Fire Research Institute of Ministry of Public Security, Chengdu, 610036, PR China;1. State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China;2. School of Chemistry Science and Engineering, Yunnan University, Kunming 650091, China;1. Karadeniz Technical University, Department of Metallurgical and Material Engineering, 61080 Trabzon, Turkey;2. Department of Chemistry, Gaziosmanpa?a University, 60240 Tokat, Turkey |
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| Abstract: | Polyethylene glycol (PEG) as a phase change material possesses three obstacles, such as leakage, low thermal conductivity and low thermal stability. A novel solid-solid phase change material (PCM) based on functionalized graphene oxide (GO), Polyethylene glycol (PEG) was prepared, and the three obstacles of PEG as a PCM was solved in one and the same material. Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), Raman and Transmission electron microscope (TEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermogravimetric analysis (TG) and thermogravimetric analysis/infrared spectrometry (TG-IR) were used to study the properties of supporting material and composite PCM (CPCM). The results indicated that the PEG was grafted on the surface of the supporting material; Compared with pure PEG, the latent heat of CPCM with 9.6 wt% supporting material decreased only 5.3%, however, the thermal conductivity of CPCM increased 111% and the heat peak release rate of CPCM decreased 33.4%. |
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| Keywords: | Phase change materials Graphene oxide Chemical modification Polyethylene glycol |
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