Improving electric thermal stability of polypropylene by chemically linking small amount of hindered phenol groups

Thermal stability of polypropylene (PP) over a broad temperature is critical for many applications. Hindered phenol (HP) groups have been utilized in PP for thermal-oxidative protection. This paper studies thermal stability of the electret property of PP linked with 0.2 mol% HP. It is observed that small amount of chemically linked HP groups improves electret thermal stability as reflected by the higher peak temperature of the thermally stimulated discharge curve and about 65% increase in the trap level. In addition, the HP groups in PP generate “rigid backbones” which maintain the PP film shapes to temperatures near the melting (~ 150 °C), compared with pristine PP at 70 °C.

This is the accepted manuscript version of an article published in MRS Advances. It is subject to the SpringerNature Accepted Manuscript Terms of Use: https://www.springernature.com/gp/open-research/policies/accepted-manuscript-terms

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Work Title Improving electric thermal stability of polypropylene by chemically linking small amount of hindered phenol groups
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Open Access
Creators
  1. Xin Chen
  2. Wenyi Zhu
  3. Qiming Zhang
Keyword
  1. Polymer electrets
  2. Thermal-stability
  3. Polypropylene
  4. Dielectric
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. MRS Advances
Publication Date February 3, 2021
Publisher Identifier (DOI)
  1. https://doi.org/10.1557/s43580-021-00016-1
Deposited November 23, 2021

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  • Created
  • Added Creator Xin Chen
  • Added Creator Wenyi Zhu
  • Added Creator Qiming Zhang
  • Added Improving_electric_thermal_stability_of_polypropylene_by_chemically_linking_small_amount_of_hindered_phenol_groups.docx
  • Updated License Show Changes
    License
    • https://rightsstatements.org/page/InC/1.0/
  • Published
  • Updated
  • Updated Keyword, Publisher Identifier (DOI) Show Changes
    Keyword
    • Polymer electrets, Thermal-stability, Polypropylene, Dielectric
    Publisher Identifier (DOI)
    • 10.1557/s43580-021-00016-1
    • https://doi.org/10.1557/s43580-021-00016-1
  • Updated