The light-to-thermal transformation behavior and thermal energy storage capacity of PECx@PEG were studied via simulated solar irradiation (275 W), and the …
Linear polyurethane (PU) ionomers were synthesized as solid-solid phase changing materials (PCMs) for thermal energy storage. Poly(ethylene glycol)s (PEGs) with 6000 and 10,000 g/mol number ...
Enhanced thermal properties of novel shape-stabilized PEG composite phase change materials with radial mesoporous silica sphere for thermal energy storage Sci. Rep., 5 ( 2015 ), p. 12964, 10.1038/srep12964
In this work, a novel phase change energy storage wood (PCESW) was fabricated by impregnating solid-solid phase change materials (SSPCM) into delignified wood. The SSPCM was prepared by using … Expand
Green energy-storage materials enable the sustainable use of renewable energy and waste heat. As such, a form-stable phase-change nanohybrid (PCN) is demonstrated to solve the fluidity and leakage issues typical of phase-change materials (PCMs). Here, we introduce the advantage of solid-to-gel transition to overcome the …
The PEG/AC CPCM with 80 mass% PEG loading displayed reasonable latent heat, suitable phase transition temperature, good thermal stability and reliability, …
Hierarchical porous PolyHIPE materials with high PCM impregnation capacity were synthesized. • The PEG was shape-stabilized in the PolyHIPE structure at 80% by mass without flow behavior. • The composite PCMs have an energy storage capacity greater than ...
The thermal cycling did not affect the thermal energy storage property of PEG composite, which still had latent heat of 124.1 kJ/kg. It indicated PEG composite Acknowledgements This work is financially supported by the National Natural Science Foundation of ).
Form–stable phase change materials (FSPCMs) composed of poly (ethylene glycol) (PEG) encapsulated in SiO 2 -modified expanded graphite (EG@SiO 2) …
Energy Storage Materials, Volume 63, 2023, Article 103041 Xiaoming Bai, …, Naiqing Zhang Hosting Li 0 in an activated lithiophilic polymer matrix with electrodeposition regulating spaces for stable lithium metal anodes
In this work, expanded graphite/polyethylene glycol (EG/PEG) composites were prepared based on physical adsorption method, the relationship between the mass …
In this study, a series of the cross-linked polyurethane (PU)/PEG4000 blend was synthesized as novel form-stable phase change materials (FSPCMs) for thermal energy storage through a facile and solvent-free synthetic strategy. In the obtained FSPCM, the PU functioned not only as supporting materials but as phase change substance. The PEG in …
Latent heat thermal energy storage (LHTES) properties of the blends were evaluated by using the differential scanning calorimetry (DSC) technique. In the form-stable blends, PEG acted like phase change-LHTES material when the acrylic polymers served as supporting material because of their adhesion property.
Biodegradable PEG/cellulose, PEG/agarose and PEG/chitosan blends as shape stabilized phase change materials for latent heat energy storage Carbohydr. Polym., 84 ( 2011 ), pp. 141 - 144
The sandwich fibrous PEG encapsulations had an overall melting enthalpy value ranging from 50 J/g to 78 J/g and melting points ranging from 20 °C to 63 °C by …
FT-IR analysis of pure PEG and CPCMs The FT-IR spectra of the PEG, AC, and CPCMs was displayed in Fig. 2.For pristine PEG2000, the characteristic absorption peaks were corresponded to the O–H stretching of hydroxyl group at 3450 cm −1, C–H stretching of alkanes at 2885 cm −1, C-H scissor and bending at 1380–1260 cm −1, C–O …
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Polyethylene glycol (PEG) is a commonly used phase change material for thermal energy storage. It can store amounts of heat in the process of phase transition, whereas the solid-to-liquid transition requires it …
Pure PEG displayed a phase change temperature of 45.9-65.6 • C with high phase-change enthalpies 168.4 J/g-180.5 J/g, which confirmed that PEG had outstanding thermal energy storage capacity ...
And, the phase-change enthalpy of crystallization and melting process for PEG were determined as 178.16 J/g and 184.09 J/g, respectively, indicating PEG exhibits a high thermal energy storage capacity due to its …
The development of clean and renewable energy sources has been necessitated by the ever-increasing energy consumption, increasing environmental degradation caused using fossil fuels and concerns over the rise in CO 2 spreading. Functional phase change materials (PCMs)'' energy storage capacity is appealing owing …
PEG based thermosetting phase change materials (PCMs) have been frequently employed for thermal energy storage in building and other fields due to the low cost, no toxic, no corrosive, good ...
PEG has a high melting enthalpy of 174.1 J g −1, demonstrating its great potential for thermal energy storage (Fig. S2a). PLA has a relatively low melting enthalpy of 37.2 J g −1 ( Fig. S2b ), and the temperature regions of phase transition for PLA are wide (over 100 °C), which profoundly influences the thermal behaviors of PLEG composites.
The SiO2/MEGR was then used as a binary porous support for the adsorption and stabilization of polyethylene glycol (PEG), forming composite phase change materials (CPCMs) for thermal energy storage. The prepared PEG/SiO2/MEGR CPCMs were investigated for thermal properties with varying PEG content (50–90%) and a fixed …
The present study provides a highly potential shape-stabilized composite PCM with a high content of PEG for thermal energy storage as well as a way to enhance …
Authors prepared form-stable energy storage materials by blending PEG and silica gel in the past work and discussed how to improve the thermal conductivities by adding β-Aluminum nitride powder. As the value of the thermal conductivity was up to 0.5607 W m −1 K −1, improved by 87.8% compared to pure PEG (0.2985 W m −1 K −1 ), the …
The thermal energy storage properties of the PEG/PVA CPCF were investigated by DSC measurements, as shown in Fig. 4 (a and b). The thermophysical parameters extracted from the DSC loops, such as the melting/freezing latent heat (Δ H m /Δ H f ) and melting/freezing temperature ( T m / T f ) are listed in Table 1 .
The resultant PEG-based membranes have a high phase change enthalpy of 60.4 J/g, good thermal energy storage ability and robust mechanical property with sustaining 125 times mass of load. Meanwhile, the microfibrous membranes are capable to show good shape fixing and recovery properties in response to temperature changes, …
Emerging PEG/VO 2 dual phase change materials (PCM) with phase transition temperature gradients were prepared with polyethylene glycol (PEG) and …
PEG (poly-ethylene glyco1) with an av. mol. wt. of 2000 g/mol has been investigated as a phase change material for thermal energy storage applications. PEG …
Karaman, S., Karaipekli, A., Sarı, A. & Biçer, A. Polyethylene glycol (PEG)/diatomite composite as a novel shape-stabilized phase change material for thermal energy storage. Sol Energy Mater Sol ...
The sandwich fibrous PEG encapsulations had an overall melting enthalpy value ranging from 50 J/g to 78 J/g and melting points ranging from 20 C to 63 C by using different PEGs. Besides, introduction of Fe microparticles in PCM-loaded layer enhanced thermal energy storage efficiency.