Journal
POLYMER DEGRADATION AND STABILITY
Volume 196, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2022.109840
Keywords
Epoxy resin; Phosphorus-based tetrazoles; Flame retardant; Smoke suppression; Mechanical properties
Categories
Funding
- National Natural Science Foundation of China [22075045]
- Natural Science Foundation of Fujian Province of China [2019J01261]
Ask authors/readers for more resources
In this study, a nitrogen-rich phosphinic amide named D-5-AT was synthesized and incorporated into epoxy resin (EP) to achieve multifunctionality without compromising mechanical properties. The addition of D-5-AT significantly improved the flame retardancy and smoke suppression of EP, while also strengthening its mechanical properties. This work offers a promising method to meet the increasing demand for multifunctional epoxy resins.
In this work, aiming to obtain multifunctional epoxy resin (EP) possessing flame retardancy and light smoke without compromising the mechanical properties, a novel nitrogen-rich phosphinic amide named D-5-AT was synthesized and then incorporated to EP. The results showed that UL-94 V-0 rating of EP with 7.5 wt% D-5-AT was available and limiting oxygen index (LOI) was up to 35.1%. Meanwhile, in the presence of D-5-AT, the heat release and smoke production of EP/D-5-AT materials were effectively suppressed during combustion as compared with EP. The improvement mentioned above was found related to the condensed and gaseous flame retardant effect of D-5-AT through the investigation on char residues of EP/D-5-AT materials and volatiles of D-5-AT. Besides, because of the existence of more hydrogen bonds and bulky group by virtue of the introduction of D-5-AT, the mechanical properties of modified EP were strengthened as well. This work offered a promising method to meet the ever-increasing requirement of multi-functionality of epoxy resins. (C) 2022 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available