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AuthorKrupa, Igor
AuthorNógellová, Zuzana
AuthorŠpitalský, Zdenko
AuthorMalíková, Marta
AuthorSobolčiak, Patrik
AuthorAbdelrazeq, Haneen W
AuthorOuederni, Mabrouk
AuthorKarkri, Mustapha
AuthorJanigová, Ivica
AuthorAl-Maadeed, Mariam Ali S A
Available date2022-05-31T19:01:31Z
Publication Date2015
Publication NameThermochimica Acta
ResourceScopus
Identifierhttp://dx.doi.org/10.1016/j.tca.2015.06.028
URIhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84937061339&doi=http://dx.doi.org/10.1016%2fj.tca.2015.06.028&partnerID=40&md5=57f5d75e240d0e46c06ebb8553196e5a
URIhttp://hdl.handle.net/10576/31885
AbstractThe preparation of Phase Change Materials (PCM) with improved thermal conductivity, based on linear low-density polyethylene (LLDPE), paraffin wax with a melting point of approximately 42 °C and expanded graphite as well as the investigation of their physical behavior is reported in this paper. The absorption of heat energy is realized by phase transitions in the wax structure, i.e., solid–solid transitions between different crystalline structures of wax and, primarily, by a solid–liquid transition. An estimate of the total heat energy that can be reversibly absorbed or released by the designed materials was determined using Differential Scanning Calorimetry (DSC). The improvement in the thermal conductivity of the polymeric materials was obtained by incorporating expanded graphite into the blends. Expanded graphite has a reinforcing effect on the PCM, resulting in an increase in the toughness (Young’s modulus) Significant amounts of wax are leached from the samples, and a higher wax content also results in more wax leakage. Graphite significantly reduces the wax loss from the samples.
Languageen
PublisherElsevier B.V.
SubjectDifferential scanning calorimetry
Elastic moduli
Graphite
Leakage (fluid)
Linear low density polyethylenes
Paraffin waxes
Paraffins
Polyethylenes
Thermal conductivity
Crystalline structure
Expanded graphite
Heat absorption
Physical behaviors
Reinforcing effects
Solid-liquid transition
Solid-solid transitions
Young's Modulus
Phase change materials
TitlePositive influence of expanded graphite on the physical behavior of phase change materials based on linear low-density polyethylene and paraffin wax
TypeArticle
Pagination218-225
Volume Number614
dc.accessType Abstract Only


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