Syntheses and flame retarding properties of DOPO polymers,melamine polymers,and DOPO‐melamine copolymers |
| |
| Authors: | Wen‐Lung Lee Lung‐Chang Liu Chien‐Ming Chen Jian‐Shian Lin |
| |
| Institution: | 1. Department of Mathematics and Physics, ROC Air Force Academy, , Kaohsiung, 820 Taiwan;2. Materials and Chemical Research Laboratories, Industrial Technology Research Institute, , Hsinchu, 30011 Taiwan;3. Mechanical and System Research Laboratories, Industrial Technology Research Institute, , Hsinchu, 30011 Taiwan |
| |
| Abstract: | 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 (Td = 290°C; char yield: 15.6%, LOI: 23, and flammability: UL‐94 V0) as the alloys containing common commercial flame retardants (i.e., DOPO, melamine, and ammonium polyphosphate). Copyright © 2013 John Wiley & Sons, Ltd. |
| |
| Keywords: | polymers heat treatments chemical reaction flame retarding property DOPO‐melamine copolymer |
|
|
