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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and properties of a form-stable phase-change hydrogel for thermal energy storage
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Preparation and properties of a form-stable phase-change hydrogel for thermal energy storage

机译：用于热能储存的形状稳定的相变水凝胶的制备和性能

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In this study, we aimed to fabricate a form-stable phase-change hydrogel (PCH) with excellent mechanical properties and heat-storage properties. Sodium alginate (SA) and polyacrylamide (PAAm) composite hydrogels were prepared with ionically crosslinked SA in a PAAm hydrogel network. Glauber's salt [i.e., sodium sulfate decahydrate (Na(2)SO(4)10H(2)O)] was incorporated within the hydrogel network as a phase-change material. Scanning electron microscopy micrographs revealed that Na(2)SO(4)10H(2)O was confined in the micropores of the hydrogel inner spaces, and differential scanning calorimetry curves showed that the composite hydrogel possessed a considerable storage potential. Mechanical properties tests, such as tensile and compressive measurements, presented a decreasing trend with increasing Na(2)SO(4)10H(2)O dosage. We concluded that the prepared composite PCH could be used to design hydrogel materials with thermal-energy-storage applications. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43836.
机译：在这项研究中，我们旨在制造具有优异的机械性能和储热性能的形状稳定的相变水凝胶（PCH）。用PAAm水凝胶网络中的离子交联SA制备藻酸钠（SA）和聚丙烯酰胺（PAAm）复合水凝胶。将格劳伯盐[即，十水合硫酸钠（Na（2）SO（4）10H（2）O）]掺入水凝胶网络中作为相变材料。扫描电子显微镜显微照片显示Na（2）SO（4）10H（2）O被限制在水凝胶内部空间的微孔中，并且差示扫描量热曲线表明复合水凝胶具有相当大的存储潜力。机械性能测试，例如拉伸和压缩测量，显示出随着Na（2）SO（4）10H（2）O剂量的增加而降低的趋势。我们得出的结论是，所制备的复合PCH可用于设计具有热能存储应用的水凝胶材料。 （c）2016 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，133，43836。

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