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Enhancing Gypsum Plaster with Encapsulated Fischer–Tropsch Paraffin Wax as a Phase-Change Additive for Broad-Range Thermal Energy Storage.

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Title: Enhancing Gypsum Plaster with Encapsulated Fischer–Tropsch Paraffin Wax as a Phase-Change Additive for Broad-Range Thermal Energy Storage.
Authors: Voronin, Denis1 (AUTHOR), Smirnova, Ekaterina1,2 (AUTHOR), Demikhova, Nataliya1,3 (AUTHOR), Sayfutdinova, Adeliya1 (AUTHOR), Kopitsyn, Dmitry1,2 (AUTHOR), Fakhrullin, Rawil2,3 (AUTHOR), Vinokurov, Vladimir1 (AUTHOR), Stavitskaya, Anna1 (AUTHOR)
Source: Polymers (20734360). May2026, Vol. 18 Issue 9, p1111. 21p.
Subjects: Paraffin wax, Microencapsulation, Plaster, Melamine-formaldehyde resins, Latent heat, Phase change materials, Heat storage, Heating control
Abstract: Paraffins are attractive as phase-change materials (PCMs) due to their high latent heat capacity and adjustable phase transition temperatures. However, the individual high-purity paraffins, especially the long-chain ones, are labor-intensive and costly to produce and capable of storing and releasing latent heat only within a limited temperature range. Herein, we demonstrate the feasibility of a high-purity paraffin wax fraction (C13–C49) obtained via the Fischer–Tropsch (FT) process as a versatile latent heat storage additive within a wide range of phase transition temperatures (8.1–98.2 °C). To avoid the leakage, the FT wax was encapsulated via nanoemulsion interfacial polymerization of melamine formaldehyde (MF) shells with various core-to-monomer and melamine/formaldehyde ratios. Differential scanning calorimetry revealed that the latent heat storage capacity of the FT/MF capsules was 104.5–163.4 J/g depending on the FT loading efficiency, with the heat storage and release range of −0.7–100.2 °C and −9.8–85.8 °C, respectively. The capsules were tested as a thermoregulating additive to commercially available gypsum plaster. Unlike employment of the additives based on individual paraffins, the addition of FT/MF capsules led to a smooth reduction in heating/cooling rates of plaster layers in an extended temperature range. This makes FT/MF capsules a promising and versatile additive for a diversity of thermal energy storage applications. [ABSTRACT FROM AUTHOR]
Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Enhancing Gypsum Plaster with Encapsulated Fischer–Tropsch Paraffin Wax as a Phase-Change Additive for Broad-Range Thermal Energy Storage.
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  Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. May2026, Vol. 18 Issue 9, p1111. 21p.
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  Data: Paraffins are attractive as phase-change materials (PCMs) due to their high latent heat capacity and adjustable phase transition temperatures. However, the individual high-purity paraffins, especially the long-chain ones, are labor-intensive and costly to produce and capable of storing and releasing latent heat only within a limited temperature range. Herein, we demonstrate the feasibility of a high-purity paraffin wax fraction (C13–C49) obtained via the Fischer–Tropsch (FT) process as a versatile latent heat storage additive within a wide range of phase transition temperatures (8.1–98.2 °C). To avoid the leakage, the FT wax was encapsulated via nanoemulsion interfacial polymerization of melamine formaldehyde (MF) shells with various core-to-monomer and melamine/formaldehyde ratios. Differential scanning calorimetry revealed that the latent heat storage capacity of the FT/MF capsules was 104.5–163.4 J/g depending on the FT loading efficiency, with the heat storage and release range of −0.7–100.2 °C and −9.8–85.8 °C, respectively. The capsules were tested as a thermoregulating additive to commercially available gypsum plaster. Unlike employment of the additives based on individual paraffins, the addition of FT/MF capsules led to a smooth reduction in heating/cooling rates of plaster layers in an extended temperature range. This makes FT/MF capsules a promising and versatile additive for a diversity of thermal energy storage applications. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/polym18091111
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 21
        StartPage: 1111
    Subjects:
      – SubjectFull: Paraffin wax
        Type: general
      – SubjectFull: Microencapsulation
        Type: general
      – SubjectFull: Plaster
        Type: general
      – SubjectFull: Melamine-formaldehyde resins
        Type: general
      – SubjectFull: Latent heat
        Type: general
      – SubjectFull: Phase change materials
        Type: general
      – SubjectFull: Heat storage
        Type: general
      – SubjectFull: Heating control
        Type: general
    Titles:
      – TitleFull: Enhancing Gypsum Plaster with Encapsulated Fischer–Tropsch Paraffin Wax as a Phase-Change Additive for Broad-Range Thermal Energy Storage.
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            – D: 01
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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