Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10604626 | Carbohydrate Polymers | 2011 | 4 Pages |
Abstract
This study based on the preparation and characterization of PEG/cellulose, PEG/agarose, and PEG/chitosan blends as form/stable phase change materials (PCMs) for latent heat energy storage. 60/40% w/w PEG/cellulose, 70/30% w/w PEG/agarose, and 80/20% w/w PEG/chitosan blends were found to contain maximum PEG without leakage above melting point and are characterized using Fourier transform infrared (FT-IR) spectroscopy, polarized optic microscopy (POM), and differential scanning calorimetry (DSC) techniques. DSC analysis indicated that the form-stable PEG/cellulose, PEG/agarose, and PEG/chitosan blends melt at 58.51 °C, 57.73 °C, and 57.18 °C with 84.63 J/g, 110.87 J/g, and 152.16 J/g latent heats, respectively, as they crystallizes at 37.05 °C, 43.36 °C, and 44.76 °C with â78.92 J/g, â99.01 J/g, and â138.39 J/g, respectively. Accelerated thermal cycling tests were applied to present thermal reliability and chemical stability of the shape stabilized blends.
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Authors
Sema Bilgin Åentürk, Derya Kahraman, Cemil Alkan, İsa Gökçe,