Flame retardant mechanisms of phosphorus-containing polyhedral oligomeric silsesquioxane (DOPO-POSS) in polycarbonate composites
The flame retardancy mechanisms of a novel polyhedral oligomeric silsesquioxane containing 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (DOPO‐POSS) in polycarbonate (PC) composites are discussed. A nice flame retardancy performance of 6 wt % DOPO‐POSS/PC is detected from cone calorimeter testi...
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Published in | Journal of applied polymer science Vol. 124; no. 3; pp. 1848 - 1857 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Hoboken
Wiley Subscription Services, Inc., A Wiley Company
05.05.2012
Wiley Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | The flame retardancy mechanisms of a novel polyhedral oligomeric silsesquioxane containing 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (DOPO‐POSS) in polycarbonate (PC) composites are discussed. A nice flame retardancy performance of 6 wt % DOPO‐POSS/PC is detected from cone calorimeter testing. The peak heat release rate and total heat released of 6 wt % DOPO‐POSS/PC decrease obviously compared with that of PC. The major pyrolysis products detected from the decomposition process of PC and 6 wt % DOPO‐POSS/PC are investigated by TGA coupled with Fourier transform infrared spectrometry and mass spectrum (TGA‐FTIR and TGA‐MS), respectively. It is confirmed that DOPO‐POSS catalyzes thermal decomposition of PC, however, reduces the release of flammable volatiles during the decomposition of PC. The condensed phase products after decomposition of PC and 6 wt % DOPO‐POSS/PC are investigated by FTIR, scanning electron microscopy, energy dispersive X‐ray spectroscopy, and X‐ray photoelectron spectroscopy characterizations. They indicated that DOPO‐POSS can accelerate the formation of char during the decomposition of PC composites. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012 |
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Bibliography: | National High Technology Research and Development Program 863 - No. 2007AA03Z538 ark:/67375/WNG-FGFZ0P9L-C istex:ECA4A8CDBAED9C85539A9D46905A716445941E72 ArticleID:APP35203 |
ISSN: | 0021-8995 1097-4628 |
DOI: | 10.1002/app.35203 |