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Thermomechanical performances of polyethylene/alumina nanodielectrics by molecular motion in interface

  • Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Mechanical response under variation of temperature is regarded as valid way to detect the characteristics of molecular motion even involves in the microstructure. Dynamic mechanical analysis (DMA) is employed to conduct the thermo-mechanical measurements of LDPE/Al2O3 nanodielectrics. The DMA results pointed out that the glass transition temperature (Tg) increases at low nanoparticle loadings (<2 wt%) and then keeps a stable value at high loading, and its activation energy increases at low loadings. These results are associated with the restriction of molecular motion and its orientation in interfacial region. This work revealed that the restricted, rearranged molecular chains and strong attraction exist in interfacial region, which are responsible for the macroscopical properties (thermal, mechanical and electrical) of nanodielectrics.

Original languageEnglish
Title of host publicationProceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages116-119
Number of pages4
ISBN (Electronic)9781509028023
DOIs
StatePublished - 18 Aug 2016
Event1st IEEE International Conference on Dielectrics, ICD 2016 - Montpellier, France
Duration: 3 Jul 20167 Jul 2016

Publication series

NameProceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016
Volume1

Conference

Conference1st IEEE International Conference on Dielectrics, ICD 2016
Country/TerritoryFrance
CityMontpellier
Period3/07/167/07/16

Keywords

  • Dynamic mechanical analysis
  • Interface
  • Molecular motion
  • Nanodielectrics

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