期刊
POLYMER DEGRADATION AND STABILITY
卷 153, 期 -, 页码 155-164出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2018.04.027
关键词
Phosphonium sulfonates; Expandable graphite; Flame retardancy; Poly(ethylene-co-vinyl acetate); Synergistic effect
资金
- National Natural Science Foundation of China [21574079]
- National Key Basic Research Program of China [2014CB239503]
Synergistic effects of synthetic phosphonium sulfonates (PhSs) bearing different groups with expandable graphite (EG) on flame retardancy properties in poly(ethylene-co-vinyl acetate) (EVA) rubber blends have been studied by limiting oxygen index (LOI), UL-94 test, cone calorimeter test (CCT), and thermogravimetric analysis (TGA). The EVA/EG/PhS composites revealed excellent flame retardancies. Upon adding 2.5 wt% of PhSs and 20 wt% of EG to EVA matrix, V-0 rating can be achieved. The heat release rate (HRR) and the total heat release (THR) of EVA/PhS-2(2.5 wt%)/EG(20 wt%) and EVA/PhS-4(2.5 wt %)/EG(20 wt%) blends decreased remarkably based on CCT. In addition, the thermal stabilities and mechanical properties of EVA/EG/PhS composites did not deteriorate comparing with those of EVA/EG composites. (C) 2018 Published by Elsevier Ltd.
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