Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 116, Issue 1, Pages 45-49Publisher
WILEY
DOI: 10.1002/app.31453
Keywords
filled polyamide 66; flame retardant; macromolecular charring agent
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Funding
- National Natural Science Foundation of China [50803039]
- National Key Technologies R and D Program of China [2006BAE03B05-2]
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In this article, macromolecular charring agent linear novolac (NA) was served as a synergist with nitrogen-phosphorous flame retardant melamine polyphosphate (MPP) for the flame-resistance of wollastonite (WT) filled polyamide 66 (PA66). The investigations showed that MPP/NA system possessed obvious synergistic effects by increasing the charring rate and amount, therefore, showing much higher flame retardancy than the filled PA66 flame retarded with MPP alone. The corresponding char layer structure of MPP/WT/PA66 and MPP/NA/WT/PA66 was investigated and their difference was analyzed. hi addition, as a multifunctional additive, NA could act as a compatibilizer and lubricant in the system, and endowed the material with improved mechanical performance and processability. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 116: 45-49, 2010
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