Inductive heating using a high-magnetic-field pulse to initiate chemical reactions to generate composite materials

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Cordelia Zimmerer - , Leibniz Institute of Polymer Research Dresden (Author)
  • Catalina Salazar Mejia - , Helmholtz-Zentrum Dresden-Rossendorf (Author)
  • Toni Utech - , Leibniz Institute of Polymer Research Dresden (Author)
  • Kerstin Arnhold - , Leibniz Institute of Polymer Research Dresden (Author)
  • Andreas Janke - , Leibniz Institute of Polymer Research Dresden (Author)
  • Joachim Wosnitza - , Chair of Physics of High Magnetic Fields, Helmholtz-Zentrum Dresden-Rossendorf (Author)

Abstract

Induction heating is efficient, precise, cost-effective, and clean. The heating process is coupled to an electrically conducting material, usually a metal. As most polymers are dielectric and non-conducting, induction heating is not applicable. In order to transfer energy from an electromagnetic field into polymer induction structures, conducting materials or materials that absorb the radiation are required. This report gives a brief overview of induction heating processes used in polymer technology. In contrast to metals, most polymer materials are not affected by electromagnetic fields. However, an unwanted temperature rise of the polymer can occur when a radio frequency field is applied. The now available high-field magnetic sources provide a new platform for induction heating at very low frequencies, avoiding unwanted thermal effects within the material. Using polycarbonate and octadecylamine as an example, it is demonstrated that induction heating performed by a magnetic-field pulse with a maximum flux density of 59 T can be used to initiate chemical reactions. A 50 nm thick Ag loop, with a mean diameter of 7 mm, placed in the polymer-polymer interface acts as susceptor and a resistive heating element. The formation of urethane as a linker compound was examined by infrared spectroscopic imaging and differential scanning calorimetry.

Details

Original languageEnglish
Article number535
Pages (from-to)1-17
Number of pages18
JournalPolymers
Volume11
Issue number3
Publication statusE-pub ahead of print - 21 Mar 2019
Peer-reviewedYes

Keywords

ASJC Scopus subject areas

Keywords

  • Bonding polymers, High-magnetic-field, Induction heating, Polycarbonate, Susceptormaterial