Hexadecanol/phase change polyurethane composite as form-stable phase change material for thermal energy storage

Tang, Bingtao; Wang, Lingjuan; Xu, Yuanji; Xiu, Jinghai; Zhang, Shufen

doi:10.1016/j.solmat.2015.08.012

Cited by 159 publications

(50 citation statements)

References 34 publications

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“…The shape-stabilized properties of pure PEG, and FS-CPCMs have been characterized by hot stage-digital camera technology [35,36]. As shown in Fig.3a, FS-CPCMs and pure PEG were pressed into wafers, each with a diameter of 10 mm, and a height of 2 mm.…”

Section: Exudation Stability Of Fs-cpcmsmentioning

confidence: 99%

Preparation and performance of novel form-stable composite phase change materials based on polyethylene glycol/White Carbon Black assisted by super-ultrasound-assisted

Zhang

Wen

et al. 2016

Thermochimica Acta

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Section: Exudation Stability Of Fs-cpcmsmentioning

confidence: 99%

Preparation and performance of novel form-stable composite phase change materials based on polyethylene glycol/White Carbon Black assisted by super-ultrasound-assisted

Zhang

Wen

et al. 2016

Thermochimica Acta

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“…Cetyl alcohol is also a useful PCM possessing the mentioned beneficial properties. Most recently, Tang et al (2016) synthesized cetyl alcohol-dyepolyurethane composite by entrapping the PCM into a visible light-driven matrix. The novel composite presented an extremely high phase-change enthalpy and suitable phase change temperature.…”

Section: Introductionmentioning

confidence: 99%

Latent heat storage by silica-coated polymer beads containing organic phase change materials

2016

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Phase change materials (PCMs) are used for latent heat storage. Most promising applications of PCMs are waste heat recovery systems, solar heating systems, building energy conservation systems, and air-conditioning systems. Macroporous poly(ethylene dimethacrylate) (PEDMA) carrier beads were formed by the suspension polymerization technique, imbibed with paraffin or cetyl alcohol phase change materials and coated with a silica shell to prevent their aggregation and the leakage of PCM. PEDMA beads contained 75.6 % paraffin and 53.1 % cetyl alcohol resulting in high latent heat storage capacities. The melting and crystallizing enthalpies were 132.6 and 133.4 J/g, respectively for paraffin-loaded capsules, while 89.6 and 88.6 J/g, respectively for cetyl alcohol containing beads. The excellent latent heat storage of the capsules was retained after 1,000 heating-cooling cycles indicating that the capillary forces of the silicacoated porous polymer beads efficiently prevented the leakage of the PCMs.

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“…The bands observed at

\overset{ν}{true}

=2918 and 2850 cm −1 represent the stretching vibrations of methylene, whereas the band at

\overset{ν}{true}

=721 cm −1 is related to the rocking vibration of the methylene group. The bands at

\overset{ν}{true}

=1463 and 1374 cm −1 represent C−H bending vibrations of the methyl group, and the band at

\overset{ν}{true}

=1069 cm −1 is related to C−O stretching of the primary alcohol . In the spectrum of HD/GO, it is easily observed that the positions of the main adsorption bands are similar to those of graphite and HD.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Graphene Oxide‐Grafted Hexadecanol Composite Phase‐Change Material for Thermal Energy Storage

Wang

Zhang

2017

Energy Tech

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With the aim of improving the shape stability and recycling reliability of hexadecanol (HD), graphene oxide (GO)‐grafted hexadecanol (GO‐g‐HD) shape‐stabilized phase‐change material (SSPCM) with good thermochemical properties was prepared by oxidizing graphite powders to form GO, which was converted into the acyl chloride and finally condensed with HD. Various characterization techniques were employed to investigate the microstructure, thermal properties, thermal durability, and reliability of the composite. The results show that HD was embedded in the composite with a maximum mass fraction of 62.7 wt % through physical adsorption and covalent bonding. The grafted percentage and density of HD on ultrathin GO sheets are 36.5 wt % and 1.51 mmol g−1, respectively. The GO‐g‐HD SSPCM melts at 49.7 °C with a latent heat of 152.3 J g−1, and freezes at 45.4 °C with a phase‐change enthalpy of 129.9 J g−1. The thermal conductivity of GO‐g‐HD is measured as 0.519 W m−1 K−1, which is an improvement of 41.8 % compared with that of neat HD. Moreover, the as‐prepared composite also presents excellent chemical and thermal stability, excellent thermal durability, negligible variation in latent heats, and no changes in the phase‐change temperatures due to strong covalent bonds and interactions between the matrix and HD. Thus, GO‐g‐HD is a promising candidate for thermal energy storage in the future because of the very good latent heat, enhanced conductivity, and stability.

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Hexadecanol/phase change polyurethane composite as form-stable phase change material for thermal energy storage

Cited by 159 publications

References 34 publications

Preparation and performance of novel form-stable composite phase change materials based on polyethylene glycol/White Carbon Black assisted by super-ultrasound-assisted

Preparation and performance of novel form-stable composite phase change materials based on polyethylene glycol/White Carbon Black assisted by super-ultrasound-assisted

Latent heat storage by silica-coated polymer beads containing organic phase change materials

Preparation and Characterization of Graphene Oxide‐Grafted Hexadecanol Composite Phase‐Change Material for Thermal Energy Storage

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