New fire-resistant epoxy thermosets: nonisothermal kinetic study and flammability behavior
-
Corneliu Hamciuc
,
Ionela-Daniela Carja
Abstract
New fire-resistant thermosets are prepared based on a bisphenol A-epoxy resin which is thermally crosslinked in the presence of dicyandiamide and two phenols containing phosphorus atoms. The thermosets are characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis (TGA), and microscale combustion calorimetry (MCC) tests. A nonisothermal kinetic study is performed based on processing of TGA data applying the method proposed by Vyazovkin. The lifetime prediction analyses establish that the phosphorus-containing polymers could be used at a constant temperature of 200°C up to 200–780 min. The MCC tests reveal an improvement of the flammability behavior, as well as a significant heat release capacity reduction for phosphorus-containing samples compared to the sample which has no phosphorus component.
Research funding: This work was supported by a grant of the Romanian Ministry of Research and Innovation, CCCDI-UEFISCDI, project number PN-III-P1-1.2-PCCDI-2017-0350/38 PCCDI within PNCDI III. The authors Ion Anghel, Valentin Enciu, and Ioana-Emilia Şofran are grateful for this financial support.
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Supplementary Material
The online version of this article offers supplementary material (https://doi.org/10.1515/polyeng-2019-0210).
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Articles in the same Issue
- Frontmatter
- Material properties
- Characterization and mechanism of accelerated curing of adhesives by in situ ultrasonic vibration for bonded joints
- Effects of tension fatigue on the structure and properties of carbon black filled-SBR and SBR/TPI blends
- New fire-resistant epoxy thermosets: nonisothermal kinetic study and flammability behavior
- Preparation and assembly
- The layer-structure transition of glass-fiber-reinforced composite materials
- Geraniol and cinnamaldehyde as natural antibacterial additives for poly(lactic acid) and their plasticizing effects
- Formation of PA12 fibres via melt electrospinning process: parameter analysis and optimisation
- Flexible epoxy composite coatings modified by reactive rubber with improvements in water and corrosive resistances
- Nanocrystalline cellulose prepared by double oxidation as reinforcement in polyvinyl alcohol hydrogels
- Engineering and processing
- Improvement of stability and release of (-)-epicatechin by hot melt extrusion
- Thermodynamic analysis and injection molding of hierarchical superhydrophobic polypropylene surfaces
