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Glycerin‐Based Polyurethane Obtained by Inverse Emulsion: Comparison Between Magnetic Induction and Conventional Heating
Author(s) -
Santiago Jéssica P.,
de Campos Silva Poliana,
Marques Fernanda D.,
Gomes de Souza Fernando
Publication year - 2018
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201800091
Subject(s) - materials science , polyurethane , induction heating , fourier transform infrared spectroscopy , composite material , suspension (topology) , emulsion , scanning electron microscope , particle (ecology) , analytical chemistry (journal) , chemical engineering , chromatography , chemistry , mathematics , homotopy , pure mathematics , electrical engineering , electromagnetic coil , engineering , oceanography , geology
This work studies the comparison of polyurethane particles obtained by heating through magnetic induction and conventional heating. The collected materials are characterized by Fourier transform infrared spectroscopy, Low‐Field Nuclear Magnetic Resonance Spectroscopy, Scanning Electron Microscopy, Particle Size Distribution, and Gel Fraction. Besides that, the magnetic force of the magnetite in glycerin suspension is performed. The obtained results allow inferring that the polyurethane particles obtained by magnetic induction exhibit properties close to the particles obtained by conventional heating. However, composite particles present a longer relaxation time than the one of the polyurethane, providing the highest toughness to the material. As the principal advantage, materials obtained by magnetic induction heating can be produced in a fraction of the time requested for the preparation of the similar materials obtained by conventional heating.