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dc.contributor.author HERNANDEZ LOPEZ, SUSANA
dc.contributor.author VIGUERAS SANTIAGO, ENRIQUE
dc.contributor.author MAYORGA ROJAS, MIGUEL
dc.contributor.author Reyes Contreras, Delfino
dc.creator HERNANDEZ LOPEZ, SUSANA; 30493
dc.creator VIGUERAS SANTIAGO, ENRIQUE; 25387
dc.creator MAYORGA ROJAS, MIGUEL; 14896
dc.creator Reyes Contreras, Delfino; 290009
dc.date.accessioned 2018-03-16T23:45:50Z
dc.date.available 2018-03-16T23:45:50Z
dc.date.issued 2012-12-25
dc.date.issued 2012-12-25
dc.identifier.issn 0921-5107
dc.identifier.issn 0921-5107
dc.identifier.uri http://hdl.handle.net/20.500.11799/80187
dc.identifier.uri http://hdl.handle.net/20.500.11799/80187
dc.description.abstract This paper is focus on the analysis of the electrical resistivity of polymer composites respect to the temperature when samples are under heating-cooling cycles in two type of experiments namely: (1) at three different heating rates and (2) an isothermic one. Three different films S1, S2 and S3 of Polystyrene + 22 wt% CB were submitted to several heating-cooling cycles until a reversing processof the resistivity behavior was reached for each film. The heating was performed from room temperature, RT (24 °C) to 120 °C at rates of 1, 2 and 5 °C/min, respectively. A fourth film S4 was exposed to isothermic-heating-cooling cycles, consisting on heat from RT to 120 ºC (at 2 °C/min) and keep the filmat 120 °C for 2.5 hours. The cooling rate was 0.2 °C/min for all samples. Results show that the cycle’s number for reaching the electrical stability of films were strongly dependent on the heating rate more than the kind of process (continuous or isothermic). Main analysis shows that as a lower the heating rate (1 °C/min) the number of heating-cooling cycles for reaching the reversibility (electrical stability) are less (6 cycles in our case) than those for higher heating rates (9 and 12 cycles). Results are explained in terms of the redistribution of carbon black particles due to the composite´s structural and thermal relaxation; in other words the dynamic polymer chain mobility during the heating process and the chain relaxation process during the cooling one. es
dc.language.iso eng es
dc.publisher Journal of Materials Science and Engineering B es
dc.relation.ispartofseries 12;
dc.relation.ispartofseries 12;
dc.rights embargoedAccess es
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject Conductive polymer composites es
dc.subject PTC effect es
dc.subject thermostability es
dc.subject.classification BIOLOGÍA Y QUÍMICA
dc.title Changes in the Electrical Resistivity of Thin-Films for Polymer Composites Induced by Heating-Cooling Cycles es
dc.type Artículo es
dc.provenance Científica
dc.provenance Científica es
dc.road Dorada es
dc.organismo Ciencias es
dc.ambito Internacional es
dc.audience students
dc.audience researchers
dc.type.conacyt article
dc.identificator 4
dc.identificator 2


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  • Título
  • Changes in the Electrical Resistivity of Thin-Films for Polymer Composites Induced by Heating-Cooling Cycles
  • Autor
  • HERNANDEZ LOPEZ, SUSANA
  • VIGUERAS SANTIAGO, ENRIQUE
  • MAYORGA ROJAS, MIGUEL
  • Reyes Contreras, Delfino
  • Fecha de publicación
  • 2012-12-25
  • 2012-12-25
  • Editor
  • Journal of Materials Science and Engineering B
  • Tipo de documento
  • Artículo
  • Palabras clave
  • Conductive polymer composites
  • PTC effect
  • thermostability
  • Los documentos depositados en el Repositorio Institucional de la Universidad Autónoma del Estado de México se encuentran a disposición en Acceso Abierto bajo la licencia Creative Commons: Atribución-NoComercial-SinDerivar 4.0 Internacional (CC BY-NC-ND 4.0)

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