期刊
COMPOSITES COMMUNICATIONS
卷 10, 期 -, 页码 97-102出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.coco.2018.08.001
关键词
Epoxy resin; Self-assembled supermolecular aggregate; P,N-containing flame retardants; Graphene; Flame retardancy
资金
- National Natural Science Foundation of China [51628302, 51703197, 51673173]
- Natural Science Foundation of Zhejiang Province, China [Q15C160013]
- Ningbo Science and Technology Innovation Team [2015B11005]
In this paper, we have reported a facile way to functionalize graphene oxide (GO) via assembling a supermolecular aggregate of piperazine (PiP) and phytic acid (PA) onto the GO surface (PPGO) without using any organic solvent. The functionalization of GO is confirmed by the X-ray photoelectron spectrum (XPS), transmission electron micrographs (TEM) and Raman spectrum. The introduction of 3 wt% PPGO into epoxy resin (EP/PPGO3) results in notable suppression on the fire risk of epoxy resin. In addition, cone calorimeter tests showed that the peak heat release rate (pHRR) was decreased from 727.4 kW/m(2) to 367.5 kW/m(2) (49%), and the peak smoke production rate (pSPR) was decreased from 0.2316 m(2)/s to 0.1379 g/s (40%). The improved flame-retardant performance of EP nanocomposites is most likely due to a tripartite cooperative effect from the key components (piperizine, phytic acid, and GO). This strategy demonstrates a facile and efficient approach for fabricating highly effective graphene-based flame retardants for polymers.
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