Journal
POLYMER
Volume 52, Issue 21, Pages 4891-4898Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2011.08.013
Keywords
Carbon nanotubes; Epoxy resin; Flame retardancy
Categories
Funding
- National Natural Science Foundation of China [50873099, 51073149, 50921062, 10972216]
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Molybdenum-phenolic resin (Mo-PR) was grafted onto the surface of multi-walled carbon nanotubes (MWCNTs) to obtain modified MWCNTs (CNT-PR). Compared to epoxy resin, epoxy resin/CNT-PR nanocomposites showed the improvements in flame retardancy and mechanical properties. Structural characterization showed that the grafted Mo-PR improved the dispersion of MWCNTs in epoxy resin and enhanced the interfacial interaction between CNT-PR and epoxy resin. On the other hand, the grafted Mo-PR could show high char yield during the process of combustion. Thus the flame retardancy of nanocomposites was improved, especially for the heat release rate and total smoke production. Furthermore, the combination of CNT-PR with melamine dramatically promoted the LOI value and the level of UL-94 rating. (C) 2011 Elsevier Ltd. All rights reserved.
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