Abstract
The current study gives out the preparation and development of novel ternary eutectic mixture comprises of polyethylene glycol (PEG) molecular weight of 2000, 6000 and 10,000. The mixture was developed in various weight fraction ratios. Differential scanning calorimetry (DSC) result suggests that the fusion latent heat and melting temperature of the eutectic lies in the desired range. The fusion latent heat varies from 220 to 154.39 kJ/kg, and melting temperature ranges between 59.1 and 47.8 ℃. The maximum value of fusion latent heat of ternary mixture is 172.74 kJ/kg, whereas the melting temperature is 52 ℃ when the ratio PEG 2000:PEG 6000:PEG 1000 is 60:10:30. Fourier-transform infrared spectroscopy (FT-IR) analysis was carried out to determine the chemical functional group changes, and the result shows that material is chemically stable irrespective of change in weight percentage ratio of PEGs. Results revealed that the ternary mixture can be suitable material which can be used for thermal energy storage applications.
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