Binary Mixture of Solid-Solid Phase Change Material: Synthesis, Characterization and Experimental Study

Abstract

In this work, a class of polyol solid-solid phase change material where Neopentyl glycol is mixed in 6 and 2 wt.% of Pentaerythritol and was synthesized by physical blending method to obtain homogeneous mixture and thermally cycled for 500 times. The surface morphology, chemical composition, crystal phase identification, thermal degradation, and phase change phenomena were characterized. The phase transition temperatures and enthalpies upon heating and cooling of 6 and 2 wt.% of Pentaerythritol are found to be 43.1 °C, 133 J g-1, and 28.2 °C, 119 J g-1, and 41.2 °C, 121 J g-1, and 28.5 °C, 106 J g-1, respectively which suits for electronic system to keep under operating zone. Laser Flash Apparatus was used to find the thermal diffusivity and thermal conductivity value was calculated. Further, the effect of heat transfer in binary polyol mixtures were experimentally analysed through conventional heat sink for electronic cooling application.

Novel urea‐based compounds as solid‐solid phase change materials: 1,3‐bisstearoylurea and 1,1,3,3‐tetrastearoylurea for thermal energy storage applications

“…Polyols are only a few in the literature. Many different kinds of alternatives of urea compounds could be produced using the other fatty acids 52‐54 . Future work following this study is to be organometallic compounds of the produced urea compounds because it is well known that nitrogen and oxygen atoms have chelating ability to many of the metals.…”

“…Many different kinds of alternatives of urea compounds could be produced using the other fatty acids. [52][53][54] Future work following this study is to be organometallic compounds of the produced urea compounds because it is well known that nitrogen and oxygen atoms have chelating ability to many of the metals. In other words, this property can be thought as coordination linkages of the produced fatty compounds to some metals having the ability to founding coordination bonds.…”