Nickel and sodium phosphate composite with wall putty substantive as energy saving decorating material

Abstract

The phosphate containing inorganic mixture has been synthesized and various measurement techniques are used to characterize it. Composite mixtures of this mixture are synthesized with assimilation of wall putty. The differential scanning calorimetry of mixture is studied in two thermal cycles from 298 K to 223 K at 10 K min⁻¹ in normal atmosphere and found endothermic behavior after a cycle. The specific heat capacity (C_p) of 4.42% composite mixture is found exhibit lower C_p value as compared to wall putty by 20% at 343 K. The C_p of wall putty is 4.96 Jg⁻¹K⁻¹ at 300 K while C_p of 4.42% and 12.11% composite mixture are 2.70 Jg⁻¹K⁻¹ and 4.00 Jg⁻¹K⁻¹ at 300 K, respectively. This composite mixture could be used in exterior walls of the buildings instead of wall putty alone. So, coating material of 4.42% mixture keeps the buildings cooler than expected.

Keywords:

• Composite mixture
• heat storage
• phosphate
• wall putty
• DSC

Acknowledgment

The author thanks P.G. Department of Chemistry, Fakir Mohan University for providing necessary laboratory facility for the synthesis of this compound. RAD and GSB in Department of Chemistry, IcfaiTech, IFHE is thankful to the University for associating with this work. The author also thanks ST&IC, Cochin University of Science and Technology, Cochin for all kinds of sophisticated measurements.

Conflict of interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this article.