Performance of form‐stable myristic acid/polymethyl methacrylate composite phase‐change material coated with nitrile butadiene rubber/polyacrylic acid layered coatings

Abstract

The aim of this work is to determine the effect of coating and blending composition of myristic acid (MA) with polymethyl methacrylate (PMMA) on the latent heat and thermal stability of phase change material (PCM). Form‐stable PCM (FSPCM) was prepared by blending MA with PMMA and then coating with nitrile butadiene rubber (NBR) and polyacrylic acid (PA) layers. This is the first attempt to coat the PCM with elastomeric latex. Leakage test results showed that addition of 20 wt% PMMA to the MA and NBR‐PA coating layers could eliminate leakage in sample PCM8O. Tensile test results showed that NBR‐PA coating material provide sufficient strength and elasticity to hold the PCM during the phase change process. Latent heat of melting and freezing of the form stable PCM80 is 107.56 J/g and 102.26 J/g, which is comparable with other results in the literature. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48642.

Effect of Elastomeric Coating on the Properties and Performance of Myristic Acid (MA) Phase Change Material (PCM) Used for Photovoltaic Cooling

“…However, the leakage test shows that MA/NBR-1.0 and MA/NBR-1.5 have leakage signs while MA/NBR-0.5 pellet does not. This is because a good coating material must possess the combination of criteria of high tensile strength, ductility, and flexibility as such exhibited by MA/NBR-0.5 [57].…”

Thermal energy storage characteristics of polyacrylic acid/dodecanol/carbon nanofiber composites as thermal conductive shape‐stabilized composite phase change materials

“…Apart from that study, in a few studies, PAA was used to coat polymer‐based composite PCMs to prevent leakage of PCMs, rather than directly used as supporting material in the production of composite PCMs. In one of those studies, PAA was used as the sole coating material for the PMMA/myristic acid composite, 26 while in the other study, PAA and nitrile butadiene rubber mix was used as the coating material for the PMMA/myristic acid composite 32 . Lastly, PAA was utilized to produce comb‐like PAA‐grafted fatty alcohol polymers as TES materials through a different production approach 33 .…”

“…In one of those studies, PAA was used as the sole coating material for the PMMA/myristic acid composite, 26 while in the other study, PAA and nitrile butadiene rubber mix was used as the coating material for the PMMA/myristic acid composite. 32 Lastly, PAA was utilized to produce comb-like PAA-grafted fatty alcohol polymers as TES materials through a different production approach. 33 As seen in these studies, although it is not a very distant approach to use PAA for different purposes in the production of TES materials, there is a serious lack of research and knowledge gap in evaluating it directly and solely as supporting material in the shape stabilization of PCMs.…”