Flame Inhibition and Charring Effect of Aromatic Polyimide and Aluminum Diethylphosphinate in Polyamide 6.
作者： Haisheng Feng , Yong Qiu , Lijun Qian , Yajun Chen , Bo Xu
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摘要: An aromatic macromolecular polyimide (API) was synthesized and characterized, used as a synergistic charring flame retardant in glass fiber reinforced polyamide 6 (GF/PA6). API aluminum diethylphosphinate (ADP) exhibited better inhibition behavior compared with ADP alone. The 5%API/7%ADP/GF/PA6 sample achieved the lower peak value of heat release rate (pk-HRR) at 497 kW/m² produced higher residue yields 36.1 wt.%, verifying that have an outstanding effect on barrier effect. API/ADP system facilitated formation carbonaceous, phosphorus aluminum-containing compact char layer increased FTIR spectra real-time TGA-FTIR analysis evolved gases from PA6 composites revealed interacted ADP/PA6 locked more P⁻O⁻C P⁻O⁻Ar content, which is main mechanism for improving ability. In addition, improved mechanical properties corrosion resistance GF/PA6 to
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