AI Article Synopsis
- * This study involved synthesizing sixteen new DOPO derivatives and characterizing them using NMR spectroscopy.
- * Combining these DOPO derivatives with APP-PEI significantly improved the flame retardancy of epoxy resin, achieving a UL-94 V-0 rating and an LOI value of 28.6%, while also maintaining good mechanical performance.
Article Abstract
Epoxy resin has been extensively used in many industrial and daily applications due to its unique properties. However, the high flammability of epoxy has limited its further development. DOPO derivatives, which are organophosphorus compounds, are highly effective components of flame retardant epoxy composites due to their good compatibility with the resin and their lower toxicity compared to halogenated compounds. This study synthesized sixteen new DOPO derivatives, characterizing their chemical structures with NMR spectroscopy. The combination of synthesized DOPO derivatives and APP-PEI (ammonium polyphosphate-polyethyleneimine) has shown a synergistic effect on enhancing the flame retardancy of epoxy resin with the UL-94 V-0 rating and the LOI value of 28.6%. Moreover, the epoxy composites displayed relatively high mechanical performance with the impact strength of 26-28 kJ m.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10853849 | PMC |
| http://dx.doi.org/10.1039/d4ra00051j | DOI Listing |
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