Synergistic Flame Retardant and Suppression Smoke Mechanism of Cerium Phenylphosphonate and Decabromodiphenyl Oxide in Glass. fiber Reinforced Poly (1,4-butylene terephthalate) Composites
作者：Guo ZH, Fang ZP, Chen C
關鍵字：Flame retardancy; Smoke suppression; Rare earth phenylphosphonate; Brominated flame retardant; Poly (1,4-butylene terephthalate)
論文來源：期刊
具體來源：Chemical Journal of Chinese Universities-Chinese, 2017, 38(2): 284-293
發表時間：2017年
Glass fiber reinforced poly (1,4-butylene terephthalate) (PET-GF) /
decabromodiphenyl oxide (DBDPO) / cerium phenylphosphonate (CeHPP)
composites were prepared by melt blending. Cone test was employed to
investigate the comprehensive combustion behavior and the thermal
gravimetric. infrared spectrometry (TG-FTIR) was used to analyze the
release amount and component of volatile gases produced during thermal
degradation. The scanning electron microtopography (SEM) of char
residues was observed, and the elements and contents in char residues
were tested by energy dispersive X-ray spectrometer (EDX) and X-ray
photoelectron spectroscopy(XPS). The experimental results showed that
the compounding of CeHPP and DBDPO in PET. GF restrained the thermo.
oxidative degradation of PET-GF/ DBDPO/ CeHPP composites, retarded the
combustion of condensed phases and reduced the smoke release. CeHPP
formed the continuous and compact carbon char during combustion,
dispersing among the surface of polymer matrix and glass fibers and
restricting DBDPO and its decomposition products in condensed phases.
Therefore, the synergism flame retardant effects of gaseous phase and
condensed phase were achieved, suppressing the smoke release to gaseous
phase effectively.