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<p>This study is significant in the context of energy-efficient buildings. The building sector is a key factor in climate change, consuming large amounts of energy to maintain a comfortable indoor temperature. The energy is mainly derived from non-renewable sources, which do not fulfill the energy demand. Therefore, it is necessary to focus on alternative sources to satisfy the demand. This study aims to improve the coating’s ability to store latent heat by varying the amount of microencapsulated phase change materials (MPCM) in polyester-based organic coating for energy storage buildings. The microcapsule storage capacity can be increased by changing the melamine–formaldehyde (M/F) ratio with a constant core-to-shell ratio. The lauric acid–myristic acid (LA-MA) eutectic phase change material was microencapsulated by using MF as a shell material through an in situ polymerization process. The investigation evaluated the structural, morphological, and thermal properties of microcapsules using Fourier-transform infrared spectroscopy, scanning electron microscopy, differential scanning calorimetry analysis, and thermogravimetric analysis. In this work, the thermal behavior of MPCM incorporated into polyester-based organic coatings for roofing applications was studied. The coating was prepared with varying percentages of MPCM 1 and tested for various coating properties. DSC result of MPCM 1 has been observed to melt at 39.01&#xa0;°C with a melting latent enthalpy of 130.45&#xa0;J/g and crystallize at 34.33&#xa0;°C with a crystallization latent heat of 131.75&#xa0;J/g. TGA analysis confirms increases in the thermal stability of MPCM compared to pure PCM. The thermal energy transfer rate was used to measure the time it took for the coated panel to reach a target temperature of 45&#xa0;°C. Coatings with incorporated microcapsules were analyzed for salt spray to evaluate the potential impact of phase change material (PCM) loading on corrosion resistance.</p>

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Microencapsulation of eutectic fatty acid phase change materials for enhancing thermal performance of coatings in energy-efficient buildings

  • 期刊论文

  • 发表日期：

    2026年7月17日

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  • Bhagyashree Vasantrao Waghmare,
  • Prakash A. Mahanwar

摘要

This study is significant in the context of energy-efficient buildings. The building sector is a key factor in climate change, consuming large amounts of energy to maintain a comfortable indoor temperature. The energy is mainly derived from non-renewable sources, which do not fulfill the energy demand. Therefore, it is necessary to focus on alternative sources to satisfy the demand. This study aims to improve the coating’s ability to store latent heat by varying the amount of microencapsulated phase change materials (MPCM) in polyester-based organic coating for energy storage buildings. The microcapsule storage capacity can be increased by changing the melamine–formaldehyde (M/F) ratio with a constant core-to-shell ratio. The lauric acid–myristic acid (LA-MA) eutectic phase change material was microencapsulated by using MF as a shell material through an in situ polymerization process. The investigation evaluated the structural, morphological, and thermal properties of microcapsules using Fourier-transform infrared spectroscopy, scanning electron microscopy, differential scanning calorimetry analysis, and thermogravimetric analysis. In this work, the thermal behavior of MPCM incorporated into polyester-based organic coatings for roofing applications was studied. The coating was prepared with varying percentages of MPCM 1 and tested for various coating properties. DSC result of MPCM 1 has been observed to melt at 39.01 °C with a melting latent enthalpy of 130.45 J/g and crystallize at 34.33 °C with a crystallization latent heat of 131.75 J/g. TGA analysis confirms increases in the thermal stability of MPCM compared to pure PCM. The thermal energy transfer rate was used to measure the time it took for the coated panel to reach a target temperature of 45 °C. Coatings with incorporated microcapsules were analyzed for salt spray to evaluate the potential impact of phase change material (PCM) loading on corrosion resistance.