Microencapsulation of butyl stearate as a phase change material by interfacial polycondensation in a polyurea system

Liang, Chen; Xu, Lingling; Hongbo, Shang; Zhang, Zhibin

doi:10.1016/j.enconman.2008.09.044

Cited by 184 publications

(64 citation statements)

References 7 publications

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“…Other studies have also been conducted using the same process. For instance, Chen et al [35] used butyl stearate as core material and TDI/EDA as shell material to produce MEPCM. They also investigated the effect of different stirring rates (300-700 rpm), emulsifier (polyethylene glycol octylphenyl ether (OP)-10) content and core/shell mass ratios on the quality of the MEPCM.…”

Section: Interfacial Polycondensationmentioning

confidence: 99%

Review of solid–liquid phase change materials and their encapsulation technologies

Darkwa

Kokogiannakis

2015

Renewable and Sustainable Energy Reviews

771

267

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Various types of solid-liquid phase change materials (PCMs) have been reviewed for thermal energy storage applications. The review has shown that organic solid-liquid PCMs have much more advantages and capabilities than inorganic PCMs but do possess low thermal conductivity and density as well as being flammable. Inorganic PCMs possess higher heat storage capacities and conductivities, cheaper and readily available as well as being non-flammable, but do experience supercooling and phase segregation problems during phase change process. The review has also shown that eutectic PCMs have unique advantage since their melting points can be adjusted. In addition, they have relatively high thermal conductivity and density but they possess low latent and specific heat capacities. Encapsulation technologies and shell materials have also been examined and limitations established. The morphology of particles was identified as a key influencing factor on the thermal and chemical stability and the mechanical strength of encapsulated PCMs. In general, in-situ polymerization method appears to offer the best technological approach in terms of encapsulation efficiency and structural integrity of core material. There is however the need for the development of enhancement methods and standardization of testing procedures for microencapsulated PCMs. Abstract: Various types of solid-liquid phase change materials (PCMs) have been reviewed for thermal energy storage applications. The review has shown that organic solid-liquid PCMs have much more advantages and capabilities than inorganic PCMs but do possess low thermal conductivity and density as well as being flammable. Inorganic PCMs possess higher heat storage capacities and conductivities, cheaper and readily available as well as being non-flammable, but do experience supercooling and phase segregation problems during phase change process. The review has also shown that eutectic PCMs have unique advantage since their melting points can be adjusted. In addition they have relatively high thermal conductivity and density but they possess low latent and specific heat capacities. Encapsulation technologies and shell materials have also been examined and limitations established. The morphology of particles were identified as a key influencing factor on the thermal and chemical stability and the mechanical strength of encapsulated PCMs. In general, in-situ polymerization method appears to offer the best technological approach in terms of encapsulation efficiency and structural integrity of core material. There is however the need for the development of enhancement methods and standardization of testing procedures for microencapsulated PCMs.

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Section: Interfacial Polycondensationmentioning

confidence: 99%

Review of solid–liquid phase change materials and their encapsulation technologies

Darkwa

Kokogiannakis

2015

Renewable and Sustainable Energy Reviews

771

267

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“…spray-drying (Hawlader et al [34]) or a coating process (Kaygusuz et al [58]) or chemically through e.g. coacervation (Hawlader et al [34], Saihi et al [93]) or interfacial polymerization (Cho et al [21], Liang et al [73] and Saihi et al [94]). …”

Section: Microencapsulationmentioning

confidence: 99%

Phase change materials and products for building applications: A state-of-the-art review and future research opportunities

Kalnæs

Jelle

2015

Energy and Buildings

471

232

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Phase change materials (PCM) have received considerable attention over the last decade for use in latent heat thermal storage (LHTS) systems. PCMs give the ability to store passive solar and other heat gains as latent heat within a specific temperature range, leading to a reduction of energy usage, an increase in thermal comfort by smoothing out temperature fluctuations throughout the day and a reduction and/or shift in peak loads. The interest around PCMs has been growing significantly over the last decade. Hence, several commercial products have arrived on the market with various areas of use in building applications. This study reviews commercial state-of-the-art products found on the market and show some of the potential areas of use for PCMs in building applications. Examples of how PCMs can be integrated into buildings, and furthermore building materials and projects using PCMs that have already been realised, have also been reviewed. There seems to be a scarcity of data published on actual performance in real life applications so far. However, many laboratory and full scale experiments have shown positive results on energy savings. Furthermore, future research opportunities have been explored and challenges with the technology as of today have been discussed.

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“…1 for details [54]. Another recent study by Liang et al [55] used butyl stearate as a phase change material and polyurea shell as the shell material, they indicated that the emulsifier had an important influence on the uniform size distribution of microcapsules, but it had little influence on the size value of the microcapsules.…”

Section: Interfacial Polymerizationmentioning

confidence: 99%

Review on microencapsulated phase change materials (MEPCMs): Fabrication, characterization and applications

Zhao

Zhang

2011

Renewable and Sustainable Energy Reviews

424

155

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The use of latent heat storage, microencapsulated phase change materials (MEPCMs), is one of the most efficient ways of storing thermal energy and it has received a growing attention in the past decade. However, there is no complete overview of its utilisation in thermal energy storage systems, and the information is widely spread in the literature. In this paper, a comprehensive review has been carried out for MEPCMs. Four aspects have been the focus of this review: fabrication and characterization of MEPCMs, applications of MEPCMs to the textile and building, fundamental properties of microencapsulated phase change material slurry (MPCS) and application of MPCS to the thermal energy storage system. Over 140 recent publications are referenced in this paper.

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Microencapsulation of butyl stearate as a phase change material by interfacial polycondensation in a polyurea system

Cited by 184 publications

References 7 publications

Review of solid–liquid phase change materials and their encapsulation technologies

Review of solid–liquid phase change materials and their encapsulation technologies

Phase change materials and products for building applications: A state-of-the-art review and future research opportunities

Review on microencapsulated phase change materials (MEPCMs): Fabrication, characterization and applications

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