期刊
POLYMER DEGRADATION AND STABILITY
卷 107, 期 -, 页码 158-165出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2014.05.017
关键词
Flame retardant; Bridged DOPO derivatives; Polyamide 6; Engineering plastics; Thermal analysis; Fire tests
Two novel flame retardants, based on bridged 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) were developed and evaluated as flame retardant (FR) additives in polyamide 6 (PA6) engineering plastics. The analytical evaluation of the newly developed FR/PA6 formulations indicates a good flame retardant behaviour of both bridged DOPO derivatives, achieving a VO rating, at a thickness of 1 mm, in the UL94 vertical flammability test. Additionally, it was found that the bridged DOPO derivatives are primarily active in the gas-phase through flame inhibition as well as via increased meltflow-drip FR mechanism. (C) 2014 Elsevier Ltd. All rights reserved.
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