期刊
THERMOCHIMICA ACTA
卷 537, 期 -, 页码 44-50出版社
ELSEVIER
DOI: 10.1016/j.tca.2012.02.033
关键词
Cyanate ester resin; DSC; Cure kinetics; Mechanical properties; Dielectric properties; Thermal properties
资金
- Graduate Starting Seed of Northwestern Polytechnical University [Z2011010]
In this paper, we reported the preparation of the bismaleimide-triazine/epoxy interpenetrating polymer networks using 4,4'-bismaleimidodiphenymethane (BMI), bisphenol A dicyanate (BADCy) and 4,5-epoxycyclohexane 1,2-dicarboxylic acid dilycidyl (TDE-85) epoxy resin. The non-isothermal curing kinetics of TDE-85/BMI/BADCy copolymer was studied by the differential scanning calorimetry (DSC) at various heating rates. Kissinger equation and Ozawa equation were used to describe the apparent activation energy of the modified system. Compared to unmodified BMI/BADCy resins, the TDE-85/BMI/BADCy copolymer exhibited excellent mechanical properties and stable thermal properties when the content of TDE-85 epoxy resin was 20 wt%. The dielectric properties of TDE-85/BMI/BADCy copolymer such as dielectric constant and dielectric dissipation factor remained the good stability over a wide frequency from 10 MHz to 60 MHz. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.
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