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Recommended Papers for: graphite

Total Papers Found: 64

A capric–palmitic–stearic acid ternary eutectic mixture/expanded graphite composite phase change material for thermal energy storage

This study suggested the use of capric acid–palmitic acid–stearic acid ternary eutectic mixture/expanded graphite (CA–PA–SA/EG) composite phase change material (PCM), as a low-temperature heat storage material. With a mass ratio of CA:PA:SA = 79.3 : 14.7 : 6.0, the mixture was prepared and its mass ratio compared to that of the CA-PA-SA/EG composite could reach as high as 90%. The melting temperature of the CA-PA-SA/EG composite was ...

Author(s): , , , , ,

Preparation and thermal properties of porous heterogeneous composite phase change materials based on molten salts/expanded graphite

This article discussed the creation of phase change composite materials using molten binary salts and expanded graphite (EG). Three different salts were used, LiNO3–KCl, LiNO3–NaNO3 and LiNO3–NaCl. The amount of salt in the composites varied between 77.8% and 81.5%. The thermal conductivity of the products was assessed to determine how it was affected by the addition of expanded graphite. The researchers determined that they had increased the thermal conductivity ...

Author(s): , , , , ,

Thermal Characterization of Lauric–Stearic Acid/Expanded Graphite Eutectic Mixture as Phase Change Materials

Expanded graphite (EG) was added to lauric acid (LA)-stearic acid (SA) phase change materials to enhance their thermal conductivities. The PCMs were prepared in varying mass fractions of LA and SA, and 10 wt. % of EG was added. The phase change temperature and phase change enthalpy were determined by DSC, while the thermal conductivities, and thermal stabilities of the PCMs were determined by the transient plane source and thermogravimetric analysis, ...

Author(s): , , ,

Preparation of low-density polyethylene/low-temperature expandable graphite composites with high thermal conductivity by an in situ expansion melt blending process

Low-temperature expandable graphite (LTEG) was blended into low-density polyethylene (LDPE) to prepare composite materials with an enhanced thermal conductivity in comparison to pure LDPE. The thermal conductivity of a composite containing 60 wt. % LTEG was found to be increased by a factor of 23 in comparison to the pure polymer. The LTEG was also found to decrease the melting temperature and degree of crystallinity of the LDPE, and the composites were also ...

Author(s): , , ,

High-electrical-resistivity thermally-conductive phase change materials prepared by adding nanographitic fillers into paraffin

Pristine and modified exfoliated graphite nanoplatelets (xGnPs and M-xGnPs, respectively) were dispersed into a paraffin wax phase change material (PCM) in an effort to raise the thermal conductivity of the PCM. The addition of pure xGnPs would decrease the electrical resistivity of the composite PCM, and thus its potential for use in electrical devices would be limited due to safety concerns. To eliminate this issue, the M-xGnPs were prepared. Samples ...

Author(s): , , , , ,