Journal
POLYMERS FOR ADVANCED TECHNOLOGIES
Volume 25, Issue 1, Pages 36-40Publisher
WILEY-BLACKWELL
DOI: 10.1002/pat.3201
Keywords
polymers; heat treatments; chemical reaction; flame retarding property; DOPO-melamine copolymer
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The 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) polymers, melamine polymers, and DOPO-melamine copolymers have been successfully synthesized, and their flame retarding properties have also been investigated by blending with polypropylene (PP)/styrene-ethylene-butylene-styrene (SEBS) alloys. Experimental results establish that all of them are good polymeric flame retardants. No blooming or color stains occur when they are incorporated into PP/SEBS alloys. Among lab-made polymeric flame retardants, DOPO- melamine copolymers exhibit the best thermal stability and nonflammability. PP/SEBS alloys containing DOPO-melamine copolymers display comparable thermal resistance and flame retarding behavior (T-d=290 degrees C; char yield: 15.6%, LOI: 23, and flammability: UL-94V0) as the alloys containing common commercial flame retardants (i.e., DOPO, melamine, and ammonium polyphosphate). Copyright (c) 2013 John Wiley & Sons, Ltd.
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