THERMAL DEGRADATION AND COMBUSTION BEHAVIORS OF EPOXY RESINS WITH PHOSPHORUS-SILICON OR PHOSPHORUS-NITROGEN SYNERGISTIC FLAME RETARDANTS
A novel phosphorus-nitrogen synergic flame retardant, 1,3,5-tris(3-(diphenylphosphoryl)propyl)-l,3,5-triazinane-2,4,6-trione (FR-1), and another analogous phosphorus-silicon synergic flame retardant (1,1,3,3-tetramethyl-1,3-disiloxanediyl)-di-2,1-ethanediyl-bis(diphenylphosphine oxide) (FR-2) were synthesized and used in the flame retardancy of o-cresol novolac epoxy/phenolic novolac hardener system.Experimental results revealed that FR-1 showed superior flame retardant efficiency to that of FR-2.With the same flame retardant content, the residue char of epoxy thermosets with FR-2 was higher than that of epoxy thermosets with FR-1 at 750 ℃.X-ray photoelectron spectroscopy data revealed that phosphorus exhibited different combustion behaviors when combined with nitrogen or silicon.
Zhi-sheng Li Tao Song Jin-gang Liu Yue Yan
Beijing Institute of Aeronautical Materials, Beijing 100095, China Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
国际会议
长春
英文
246-247
2016-06-15(万方平台首次上网日期,不代表论文的发表时间)